Largest Zoo in England: 10 Biggest Zoos in the UK

If you’re looking for the largest zoo in England, Whipsnade Zoo is the clear answer when size is measured by land area. Its site covers around 600 acres in Bedfordshire, making it the UK’s largest zoo by physical size.

But “biggest” can mean different things when you’re comparing zoos.

Chester Zoo, for example, covers about 130 acres but has more than 30,000 animals from over 500 species. London Zoo is much smaller in physical size but has a large species collection and a central London location.

I’ve compared the biggest zoos in the UK by land area, animal numbers, species, habitat size, and the overall visitor experience. So, whether you want a huge zoo for a full-day outing, a family-friendly wildlife attraction, or simply want to know which is the biggest zoo England has to offer, this guide breaks it down.

What Is the Biggest Zoo in the UK?

If you measure a zoo by land area, Whipsnade Zoo in Bedfordshire is the biggest zoo in the UK. Its grounds cover around 600 acres and are managed by the Zoological Society of London (ZSL).

That gives Whipsnade considerably more land than most traditional zoos in Britain. The large grounds include wide outdoor habitats, open landscapes, walking routes, and plenty of space between some of the animal areas.

But I’ve found that the word “biggest” can become confusing when comparing zoos.

A large site doesn’t automatically mean a zoo has the most animals. It also doesn’t mean it has the most species or the largest individual habitats. Land area, animal numbers, species diversity, and habitat design are separate measurements.

For this guide, I use land area as the main way of determining which zoos are physically biggest.

Is Whipsnade Zoo the Largest Zoo in England?

Yes. Whipsnade Zoo is the largest zoo in England by site area, covering around 600 acres in Bedfordshire.

ZSL describes Whipsnade as the UK’s largest zoo, and its 600-acre setting is a major part of what makes the attraction different from a compact city zoo.

For me, the biggest advantage of Whipsnade’s size is the amount of open space. It feels very different from walking around a smaller urban zoo where exhibits are packed more closely together.

Here, the grounds are part of the experience. You need more time to walk between different areas, but you also get a much more open setting.

Is the Biggest Zoo in the UK Also the Zoo With the Most Animals?

No.

The biggest zoo in the UK by land area is not automatically the zoo with the most animals.

Chester Zoo is a good example. Its site covers about 130 acres, which is considerably smaller than Whipsnade, but the zoo has more than 30,000 animals from more than 500 species.

That makes Chester particularly notable for animal and species diversity, while Whipsnade stands out for the sheer amount of land it occupies.

So, when you’re comparing big zoos in the UK, I recommend looking at more than acreage. The number of animals, species, habitat design, location, and the type of experience you want can all change which zoo makes the most sense for your trip.

Biggest Zoos in the UK at a Glance

Here’s a quick comparison of some of the biggest traditional zoos and major wildlife attractions in the UK.

Zoo	Location	Approx. area	Animals	Species	Best for
Whipsnade Zoo	Bedfordshire	600 acres	10,000+	Hundreds	Huge open spaces
Cotswold Wildlife Park	Oxfordshire	160+ acres	—	260+	Wildlife and gardens
Marwell Zoo	Hampshire	140 acres	100s	—	Families and open spaces
Chester Zoo	Cheshire	130 acres	30,000+	500+	Animal diversity
Twycross Zoo	Leicestershire	100 acres	500+	125+	Primates and conservation
Paignton Zoo	Devon	80 acres	1,800+	Nearly 190	Family day trips
Colchester Zoo	Essex	60 acres	10,000+	150+	Animal collection
London Zoo	London	—	8,000+	755	City trips
Yorkshire Wildlife Park	South Yorkshire	—	—	—	Safari-style wildlife
West Midlands Safari Park	Worcestershire	—	—	—	Drive-through safari

Whipsnade stands out by a wide margin for land area. Chester, however, shows why physical size doesn’t tell the whole story. Its 130-acre site supports a much larger animal collection than the much larger Whipsnade site.

Cotswold Wildlife Park covers over 160 acres, while Marwell occupies around 140 acres. Twycross covers about 100 acres and Paignton Zoo about 80 acres.

London Zoo is different again. It is a relatively compact city zoo, but its large species collection and central location make it an important part of any comparison of major UK zoos.

Animal and species numbers can change as collections change, so check the individual zoo’s current information before booking your trip.

How We Ranked the Biggest Zoos in the UK

I’ve ranked the biggest zoos in the UK mainly by physical site area.

This gives us a consistent measurement instead of mixing land size with visitor reviews, popularity, animal numbers, or personal preferences.

That doesn’t mean land area is the only thing that matters.

I’ve also considered animal numbers, species diversity, habitat size, conservation work, family facilities, and the amount of time you may need to explore each attraction.

What Does “Biggest Zoo” Mean?

For this guide, “biggest” mainly means the amount of land occupied by the zoo.

The land area tells you how physically large the grounds are. Animal numbers tell you how many individual animals live there. Species numbers show the variety of wildlife in the collection.

These measurements can produce very different results.

That’s why Whipsnade can be the largest zoo in England by land area while Chester has a much larger animal collection.

If you’re searching for the biggest zoo England has to offer, Whipsnade is the answer by acreage. If you’re interested in animal numbers or species diversity, you need to look at the other zoos on this list.

Zoo vs Wildlife Park vs Safari Park: What’s the Difference?

Not every large wildlife attraction should technically be called a zoo.

Traditional zoos generally house a broad range of species in managed habitats. Wildlife parks often place greater emphasis on larger outdoor areas, while safari parks may include drive-through experiences.

That distinction matters when comparing attractions such as Yorkshire Wildlife Park and West Midlands Safari Park with traditional zoos.

I’ve included both in this guide because people searching for the biggest zoos in the UK often consider these attractions alongside conventional zoos.

However, I wouldn’t treat their site sizes as a direct comparison with traditional zoos.

10 Biggest Zoos in the UK

1. Whipsnade Zoo, Bedfordshire

If you want to visit the largest zoo in England, Whipsnade Zoo is the obvious place to start.

Located on the Dunstable Downs in Bedfordshire, the zoo covers around 600 acres and is home to about 11,000 animals. ZSL describes Whipsnade as the UK’s largest zoo, and its enormous site is one of its defining features.

Whipsnade opened to visitors in 1931 and was developed as an open zoo, giving animals more space and allowing the landscape to become part of the visitor experience.

You can see Asian elephants, rhinos, giraffes, bears, wallabies, and many other species across the grounds.

What makes Whipsnade different is the scale.

It feels more like exploring a large wildlife landscape than walking through a compact city zoo. The downside is that you’ll do plenty of walking, so comfortable shoes are a must.

I’d allow most of a day if you want to explore the main areas without rushing.

Best for: Families, animal lovers, large outdoor habitats, and full-day visits.

Location: Dunstable, Bedfordshire, England.

Opened: 1931.

Site area: About 600 acres.

Animals: About 11,000.

Why visit: It is the biggest zoo in the UK by land area and offers an unusually spacious outdoor setting.

2. Cotswold Wildlife Park, Oxfordshire

Cotswold Wildlife Park covers 160 acres near Burford in Oxfordshire.

It has more than 260 species, including giraffes, rhinos, Asiatic lions, red pandas, penguins, and lemurs.

What I like about this place is that it doesn’t feel like a typical city zoo.

You walk through open parkland and landscaped gardens, with animals spread across the grounds. The giraffe walkway and free-roaming lemur area add to that wildlife-park atmosphere.

Its location also makes it easy to combine a zoo visit with exploring the wider Cotswolds.

I’d allow at least half a day here, especially if you’re traveling with children.

Best for: Families, gardens, wildlife, and a relaxed day out.

Location: Bradwell Grove, near Burford, Oxfordshire.

Site area: Around 160 acres.

Species: 260+.

3. Marwell Zoo, Hampshire

Marwell Zoo sits on around 140 acres of parkland near Winchester.

The collection includes giraffes, Amur tigers, rhinos, snow leopards, penguins, okapis, and many other animals.

The large outdoor setting is a big part of the experience. There are wide paths, outdoor habitats, animal walk-throughs, playgrounds, and a road train.

Marwell also has a strong conservation focus, with projects supporting wildlife in the UK and Africa.

For a first visit, I’d allow around four hours, although families may want longer if they use the play areas and stop for food.

Best for: Families wanting a large outdoor zoo in southern England.

Location: Winchester, Hampshire.

Site area: Around 140 acres.

Animals: Hundreds.

Suggested time: Around 4 hours or more.

4. Chester Zoo, Cheshire

Chester Zoo is one of the most important comparisons in any discussion of the UK’s largest zoo.

It covers about 130 acres, making it much smaller than Whipsnade by land area. But Chester has over 30,000 animals from over 500 species. See Chester Zoo’s official information for its current collection details.

The zoo also has gardens, indoor habitats, restaurants, play spaces, and family facilities.

I would set aside a full day for Chester Zoo.

There is simply too much to see if you try to rush through it in a few hours. The combination of animal variety, habitats, gardens, and conservation work gives the visit plenty of depth.

If your priority is seeing a wide range of animals rather than simply visiting the largest site, Chester deserves serious consideration.

Best for: Animal variety, families, conservation, and full-day visits.

Location: Chester, Cheshire.

Site area: About 130 acres.

Animals: 30,000+.

Species: 500+.

Why Is Chester Zoo Often Called the Best Zoo in the UK?

Being the biggest zoo in the UK and being described as the best zoo are two different things.

Whipsnade stands out for land area, while Chester is notable for its animal collection, conservation work, facilities, and visitor experience.

Chester Zoo itself says it has been rated the UK’s number-one zoo by Tripadvisor. That’s a visitor-rating claim made by the zoo, rather than a measure of physical size, so I would keep those two ideas separate.

Is Chester Zoo Bigger Than Whipsnade?

No, not by land area.

Whipsnade covers about 600 acres, Chester about 130 acres.

Chester does, however, have a much larger animal collection, with more than 30,000 animals from more than 500 species.

That difference is one of the clearest examples of why “biggest” needs a definition.

5. Twycross Zoo, Leicestershire

Twycross Zoo covers around 100 acres on the Leicestershire and Warwickshire border.

It is particularly well known for primates, including chimpanzees, bonobos, gorillas, orangutans, and several monkey species.

The zoo has focused on conservation, education, and research for decades.

Families also have plenty to do, including outdoor play areas, a splash pad, indoor soft play, and Gruffalo-themed attractions.

I’d allow most of a day if you want to see the animals and spend time in the family areas.

Best for: Primates, conservation, and family trips.

Location: Leicestershire/Warwickshire border.

Site area: Around 100 acres.

Suggested time: 4–5 hours.

6. Paignton Zoo, Devon

Paignton Zoo covers around 80 acres in Devon and is home to more than 1,800 animals representing nearly 190 species.

Its collection includes Sumatran tigers, western lowland gorillas, giraffes, Bornean orangutans, and red pandas.

One thing that sets Paignton apart is its combination of wildlife and plant life. The zoo also has extensive plant collections and indoor tropical and desert habitats, which can be useful when the British weather isn’t cooperating.

I’d allow a full day if you want to attend talks, explore the indoor habitats, and use the family facilities.

Best for: Families, conservation, and a full-day Devon attraction.

Location: Paignton, Devon.

Site area: Around 80 acres.

Animals: 1,800+.

Species: Nearly 190.

7. Colchester Zoo, Essex

Colchester Zoo covers around 60 acres of parkland and lakes in Essex.

Its collection includes more than 150 species and thousands of animals, with habitats featuring African plains, big cats, orangutans, Komodo dragons, and other endangered species.

There are also indoor areas, including tropical and walkthrough exhibits, so you don’t have to spend the entire visit outside.

For families, that mix of indoor and outdoor attractions can make the visit easier to manage if the weather changes.

Best for: Families who want a large animal collection with indoor and outdoor exhibits.

Location: Colchester, Essex.

Site area: Around 60 acres.

Animals: 10,000+.

Species: 150+.

8. London Zoo, London

London Zoo is much smaller by land area than Whipsnade, Chester, or Cotswold Wildlife Park, but it still deserves a place in this guide.

It sits on the northern edge of Regent’s Park and has a collection of over 8,000 animals.

Opened in 1828, London Zoo is the world’s oldest scientific zoo and has a long history of zoological research and conservation.

Its biggest advantage is location.

You can visit the zoo while exploring London rather than traveling into the countryside for a large wildlife attraction.

If you’re planning a wider city trip, you can also combine it with other attractions across the capital. For more ideas, see our guide to UK cities beyond London.

Best for: London trips, history, and visitors who want a major zoo without leaving the city.

Location: Regent’s Park, London.

Opened: 1828.

Animals: 8,000+.

Species: 755.

9. Yorkshire Wildlife Park, South Yorkshire

Yorkshire Wildlife Park is a wildlife park rather than a traditional zoo, so I wouldn’t rank it directly alongside the conventional zoos above.

I have included it because people searching for big zoos UK often consider major wildlife parks as alternatives.

The park is particularly known for larger animals and spacious habitats, including lions, tigers, giraffes, bears, rhinos, and other species.

Its safari-style layout creates a different experience from a compact city zoo.

Best for: Large animal habitats, families, and a safari-style day out.

Location: Doncaster, South Yorkshire.

Type: Wildlife park.

Suggested time: Most of a day.

10. West Midlands Safari Park, Worcestershire

West Midlands Safari Park is another attraction that needs a qualification.

It is a safari park rather than a traditional zoo.

Its main attraction is a four-mile drive-through safari where you can see animals from Africa and Asia from your own car.

You can also explore the Safari Walk on foot, and the park has additional attractions and rides.

The drive-through experience is what really sets this place apart. If you want to see large animals without spending all day walking between traditional zoo exhibits, it offers something different.

Best for: Families, safari-style experiences, and drive-through wildlife viewing.

Location: Bewdley, Worcestershire.

Type: Safari park.

Safari drive: Four miles.

Suggested time: Half a day to a full day.

Which Is the Largest Zoo in England?

If you measure a zoo by land area, Whipsnade Zoo is the largest zoo in England and the UK.

Its site covers around 600 acres in Bedfordshire, making it considerably larger geographically than most traditional zoos in Britain. ZSL continues to describe Whipsnade as the UK’s largest zoo.

But if you measure size by animal numbers or species, the answer changes.

That’s why I wouldn’t judge a zoo by acreage alone.

Largest Zoo in England by Land Area

Whipsnade Zoo is the largest zoo in England by land area, covering around 600 acres.

Its location on the Dunstable Downs gives it a spacious setting, with wide outdoor habitats and plenty of walking.

For a visit, I’d plan most of a day.

Which Zoo Has the Most Animals?

Chester Zoo has more than 30,000 animals from more than 500 species according to its current official information.

That makes it a useful comparison with Whipsnade.

Whipsnade is much bigger geographically, while Chester has a much larger animal collection on its smaller site.

Which Zoo Has the Most Species?

Chester Zoo has more than 500 species, while London Zoo lists 755 species.

Species collections can change over time, so check the current animal listings before planning your visit.

The important point is that the zoo with the largest site does not necessarily have the largest species collection.

Biggest Zoos in the UK by Category

There is no single measurement that tells you which of the big zoos in the UK will suit your trip.

After comparing land area, animal collections, facilities, and the overall type of visit, I would look at them by category.

Biggest Zoo in the UK by Land Area

Whipsnade Zoo is the biggest zoo in the UK by land area, covering around 600 acres.

If your idea of a great zoo involves large outdoor spaces, long walking routes, and big habitats, this is the attraction to consider.

UK Zoo With the Most Animals

Chester Zoo has more than 30,000 animals from more than 500 species.

Its smaller footprint compared with Whipsnade shows why acreage isn’t a reliable way to estimate how many animals you will see.

UK Zoo With the Most Species

London Zoo lists 755 species, while Chester Zoo has more than 500.

Both demonstrate that physical size and species diversity aren’t necessarily connected.

Big Zoo for Families

Families may prefer Chester, Whipsnade, Cotswold Wildlife Park, or Twycross depending on what they want from the day.

Chester combines a large animal collection with play areas, indoor habitats, gardens, restaurants, and family facilities.

Whipsnade is better suited to families who enjoy open spaces and don’t mind walking longer distances.

Big Zoo for Conservation

Conservation is another useful way to compare major zoos.

Chester Zoo has an extensive conservation and research program, including hundreds of research projects and work with conservation partners around the world.

Whipsnade also plays an important role through ZSL’s wider conservation work.

If conservation matters to you, look at the individual zoo’s current projects rather than choosing solely on physical size.

How Long Do You Need to Visit the Biggest UK Zoos?

The time you need depends on the size of the site, the number of animals you want to see, and whether you’re traveling with children.

I would plan more time for Whipsnade and Chester because both can easily become full-day outings.

Zoo	Suggested minimum	Full-day?	Why
Whipsnade Zoo	4–5 hours	Yes	Huge 600-acre site
Chester Zoo	5–7 hours	Yes	30,000+ animals and 500+ species
Cotswold Wildlife Park	3–5 hours	Optional	Wildlife and gardens
Marwell Zoo	4+ hours	Yes	Large outdoor site
London Zoo	3–5 hours	Optional	Compact city setting

These are practical planning estimates rather than fixed official visit times.

If you want a relaxed day with breaks for food, talks, photographs, and family activities, giving yourself a full day at Whipsnade or Chester is sensible.

Best Time to Visit the Biggest Zoos in the UK

The best time to visit the UK’s biggest zoos depends on what you want from the day.

If you want fewer crowds, I’d choose a weekday outside the school holidays and arrive close to opening time.

Summer offers longer daylight hours and seasonal activities, but it can also be much busier.

Weekdays vs Weekends

For a quieter visit, weekday mornings are usually a better choice than weekends, especially outside school holidays.

Weekends and school breaks can bring more families, which can mean busier paths, cafés, parking areas, and popular exhibits.

Why Go Early in the Morning?

Early mornings aren’t only useful for avoiding crowds.

Many animals can be more active earlier in the day, and cooler temperatures make walking around a large zoo more comfortable.

This matters particularly at Whipsnade, where you’re covering a much larger area than you would at a compact city zoo.

School Holidays and Summer Crowds

School holidays can be convenient for families, but they are usually among the busier periods.

If you have flexibility, a weekday outside school holidays can give you more time to move between exhibits without the same level of congestion.

Is Winter a Good Time to Visit a UK Zoo?

Yes.

Winter can work well if you prefer fewer visitors and don’t mind colder weather.

Many major zoos also have indoor habitats, cafés, and covered areas where you can take a break from the weather.

What About Rain and Bad Weather?

Don’t automatically cancel a zoo visit because of light rain.

Many large zoos have indoor exhibits, cafés, and covered spaces.

However, heavy rain or strong winds can make a full-day outdoor visit much less comfortable, so check the attraction’s current weather and visitor policies before traveling.

Should You Book a Big UK Zoo in Advance?

For weekends, school holidays, and special events, I would book in advance.

It can help you secure your preferred date and may also provide access to online ticket savings, depending on the zoo.

Before traveling, check the official website for current opening times, ticket conditions, closures, and special events.

Which Big UK Zoo Should You Visit?

The right choice depends on what you want from your day.

Choose Whipsnade If…

Choose Whipsnade Zoo if you want the UK’s largest zoo by land area.

Its roughly 600-acre site gives you large outdoor habitats, plenty of open space, and a countryside setting in Bedfordshire.

It’s a good match if you want to spend most of the day outdoors and don’t mind walking.

Choose Chester If…

Choose Chester Zoo if animal variety is your priority.

With more than 30,000 animals from more than 500 species, it offers one of the largest wildlife collections among major UK zoos.

I’d allow a full day because there is plenty to explore beyond the animal exhibits.

Choose London Zoo If…

Choose London Zoo if you’re already planning a trip to London.

Its Regent’s Park location makes it easy to add to a city itinerary, and its long history gives it a different character from large countryside zoos.

It can also work well if you don’t want to spend an entire day traveling outside London.

Choose Cotswold Wildlife Park If…

Choose Cotswold Wildlife Park if you want gardens and wildlife in the same visit.

Its large grounds combine landscaped gardens, open parkland, and animal habitats near Burford.

It also works well as part of a wider Cotswolds trip.

What Makes a Zoo Worth Visiting Beyond Its Size?

A large zoo can look impressive on paper, but acreage isn’t everything.

When I compare zoos, I look at what the size actually provides for animals and visitors.

Animal welfare should be central. Suitable habitats, nutrition, veterinary care, enrichment, and appropriate space all matter more than simply having a huge number of acres.

Conservation is another important factor.

Major zoos can support breeding and reintroduction programs, habitat protection, research, and wildlife projects outside their own grounds.

The visitor experience matters too.

Clear paths, accessible routes, toilets, food options, indoor spaces, rest areas, and family facilities can make a long zoo day much easier.

That’s why I wouldn’t automatically choose a zoo just because it appears higher in a size comparison.

Whipsnade wins on land area. Chester has a much larger animal collection. London offers a huge species collection in a central city setting. Cotswold Wildlife Park combines wildlife with gardens and open parkland.

Each one offers something different.

Frequently Asked Questions About the Biggest Zoos in the UK

What is England’s biggest zoo?

Whipsnade Zoo is the largest zoo in England by land area, covering around 600 acres in Bedfordshire. ZSL describes Whipsnade as the UK’s largest zoo.

What is the UK’s biggest zoo?

Whipsnade Zoo is the biggest zoo in the UK by land area, with a site of around 600 acres.

Is Whipsnade Zoo the UK’s largest zoo?

Yes, when measured by site area. Whipsnade covers approximately 600 acres, making it substantially larger geographically than most traditional UK zoos.

Is Chester Zoo bigger than Whipsnade Zoo?

No, not by land area. Whipsnade covers about 600 acres, Chester about 130 acres. Chester does have a much larger animal collection, with more than 30,000 animals from more than 500 species.

Which zoo in the UK has the most animals?

Chester Zoo has over 30,000 animals according to its current official information.

Which UK zoo has the most species?

London Zoo currently lists 755 species, while Chester Zoo has over 500. These figures can change as animal collections change.

What are the top 10 biggest zoos in the UK?

Using the site-size comparison in this guide, the 10 attractions are Whipsnade Zoo, Cotswold Wildlife Park, Marwell Zoo, Chester Zoo, Twycross Zoo, Paignton Zoo, Colchester Zoo, London Zoo, Yorkshire Wildlife Park, and West Midlands Safari Park.

The last two are wildlife and safari parks rather than traditional zoos.

What is the biggest zoo near London?

Whipsnade Zoo is the largest major zoo near London by land area, covering around 600 acres in Bedfordshire. London Zoo is much smaller but is considerably more convenient if you’re staying in central London.

Which is the best zoo in the UK for families?

There is no answer for every family.

Chester offers a large animal collection, indoor habitats, gardens, play areas, and family facilities. Whipsnade offers much more open space and large outdoor habitats.

How long should you spend at the biggest UK zoos?

For Whipsnade and Chester, I’d plan at least 4–5 hours, with a full day being more comfortable if you want to see the main areas without rushing.

Smaller attractions such as London Zoo can work well as half-day visits.

What is the best time to visit a UK zoo?

For fewer crowds, I’d choose a weekday morning outside school holidays.

Summer provides longer days but can be busier. Winter can be quieter, although you’ll need to be prepared for colder weather.

Are wildlife parks bigger than traditional zoos?

Some wildlife parks are larger than traditional zoos, but the comparison can be misleading because they operate differently.

A zoo, wildlife park, safari park, and aquarium are different types of attractions. That’s why this guide separates Yorkshire Wildlife Park and West Midlands Safari Park from conventional zoos when discussing size.

Final Thoughts on the Largest Zoo in England

If you came here looking for the largest zoo in England, the answer is Whipsnade Zoo when you measure size by land area.

Its roughly 600-acre site makes it the biggest zoo in the UK geographically, but that doesn’t automatically make it the largest by animal numbers or species.

Chester Zoo demonstrates the difference perfectly. Its site is much smaller, but it has over 30,000 animals from over 500 species.

So before choosing a zoo, think about what “biggest” means for your trip.

Do you want huge open spaces? Choose Whipsnade.

Do you want a very large animal collection? Consider Chester.

You want a major zoo without leaving London? London Zoo makes more sense.

You want gardens and wildlife together? Cotswold Wildlife Park is worth considering.

Planning a UK trip? Save this guide to the biggest zoos in the UK and use it as a starting point for your itinerary. You can also explore our UK cities beyond London guide for more ideas before planning the rest of your trip.