Absolute WildernessTravel & Tours
Wildebeest herd crossing the Serengeti plains, Tanzania

Tanzania Safari Statistics

The Numbers Behind the Wild

A data-driven reference for travellers, journalists, and researchers. Every figure is sourced from Tanzania National Parks, the Tanzania Tourism Board, and peer-reviewed wildlife studies.

By the numbers

Tanzania at a Glance

of Tanzania's land area is protected

· 16 national parks, 29 game reserves, 40 game-controlled areas

wildebeest in the Great Migration

· the largest overland animal movement on earth

tourists visited Tanzania in 2023

· up from 1.5 million in 2020 (COVID low)

km² of the Serengeti ecosystem

· spanning Tanzania and Kenya's Masai Mara

UNESCO World Heritage Sites in Tanzania

· including Serengeti, Ngorongoro, and Kilimanjaro
Great Migration Calendar

Where the Herds Are, Month by Month

The Great Migration is not a single event — it is a year-round circuit of 1.5 million wildebeest, 200,000 zebra, and 350,000 Thomson's gazelle following rainfall and fresh grass across the Serengeti-Mara ecosystem. Understanding the calendar is the single most important factor in planning a Tanzania safari.

January – February

Calving season

Southern Serengeti & Ndutu

Up to 8,000 calves born daily on the short-grass plains of Ndutu. Predator activity peaks — lion, cheetah, and hyena follow the herds. This is one of the most dramatic wildlife spectacles in Africa.

March – April

Post-calving northward drift

Central Serengeti

Herds begin moving north as the long rains arrive. The plains green up and the wildebeest disperse across the central Serengeti. Fewer tourists, lush landscapes, and excellent big-cat sightings.

May – June

Grumeti River crossings

Western Corridor

The first major river crossings of the year at the Grumeti River. Massive Nile crocodiles await. Crossings are less dramatic than the Mara but equally thrilling. The Western Corridor is at its most active.

July – August

Mara River crossings — peak season

Northern Serengeti & Masai Mara

The most iconic phase of the Migration. Herds mass on the southern bank of the Mara River before charging across in their thousands. Crocodile ambushes, drownings, and dramatic rescues. Peak tourist season — book 12–18 months ahead.

September – October

Continued Mara crossings

Northern Serengeti

Crossings continue through September as herds move back and forth across the Mara. October sees the herds begin their southward return. Still excellent for river crossings with slightly fewer crowds than July–August.

November – December

Short rains — southward return

Eastern Serengeti & Loliondo

The short rains trigger the southward migration back toward the calving grounds. The eastern Serengeti and Loliondo area see large herds. A quieter, more affordable time to visit with dramatic storm-light photography opportunities.

Tanzania's National Parks

Key Figures by Destination

Tanzania's 16 national parks range from the world-famous Serengeti to the remote wilderness of Katavi. Each offers a distinct ecosystem, wildlife profile, and visitor experience.

Serengeti National Park

Big Five
Size14,763 km²
Est.1951
Visitors/yr350,000+

Great Migration, highest lion density in Africa, year-round game viewing

Ngorongoro Conservation Area

Big Five
Size8,292 km²
Est.1959
Visitors/yr700,000+

World's largest intact volcanic caldera, highest density of large mammals per km² on earth

Tarangire National Park

Big Five
Size2,850 km²
Est.1970
Visitors/yr150,000+

Largest elephant herds in northern Tanzania, ancient baobab trees, dry-season wildlife concentration

Lake Manyara National Park

No Big Five
Size648 km²
Est.1960
Visitors/yr100,000+

Tree-climbing lions, flamingo flocks on the alkaline lake, dense groundwater forest

Ruaha National Park

Big Five
Size20,226 km²
Est.1964
Visitors/yr25,000+

Tanzania's largest national park, wild dogs, remote wilderness, largest elephant population in East Africa

Nyerere National Park (Selous)

Big Five
Size30,893 km²
Est.1922
Visitors/yr20,000+

Africa's largest protected area, boat safaris on the Rufiji River, walking safaris, wild dogs

Wildlife Census

Tanzania's Animal Populations

Tanzania holds some of the largest wildlife populations remaining on earth. These figures are drawn from the most recent Tanzania Wildlife Research Institute (TAWIRI) aerial surveys and IUCN assessments.

African Elephant

Stable

60,000+

Tanzania holds approximately 10% of Africa's remaining elephant population. The Ruaha-Rungwa ecosystem is the stronghold.

Lion

Declining

15,000+

Tanzania holds roughly 40% of Africa's remaining wild lion population. The Serengeti ecosystem alone supports over 3,000 individuals.

Wildebeest

Stable

1,500,000

The Serengeti-Mara wildebeest population has remained stable at approximately 1.5 million since the 1970s, following recovery from rinderpest.

African Wild Dog

Stable

1,300+

Tanzania holds one of Africa's largest wild dog populations. The Selous-Nyerere and Ruaha ecosystems are the primary strongholds.

Cheetah

Declining

1,000+

The Serengeti supports one of Africa's most studied cheetah populations. Habitat loss and human-wildlife conflict are the primary threats.

Black Rhinoceros

Increasing

167

Tanzania's black rhino population is recovering slowly. Ngorongoro Crater holds the most accessible population; Mkomazi is a key breeding reserve.

When to Visit

Tanzania Safari Seasons at a Glance

Dry Season (Peak)

June – October
WeatherDry, sunny, 15–28°C
WildlifeExcellent — animals concentrate at water sources
CrowdsHigh
CostPremium

Best overall game viewing. Book 12–18 months ahead for July–August.

Short Dry Season

January – February
WeatherHot, dry, 20–32°C
WildlifeOutstanding — calving season in Ndutu
CrowdsMedium
CostHigh

Best for calving season and predator action. Underrated by most travellers.

Green Season

November – December
WeatherShort rains, 18–28°C
WildlifeGood — migratory birds arrive, lush landscapes
CrowdsLow
CostValue

Excellent photography light. 20–30% lower rates. Fewer tourists.

Long Rains

March – May
WeatherHeavy rains, 18–26°C
WildlifeModerate — some parks inaccessible
CrowdsVery low
CostLowest

Not recommended for first-time visitors. Some specialist operators offer excellent value.

Common Questions

Tanzania Safari Facts

The Serengeti supports the highest lion density of any ecosystem in Africa — roughly one lion per 5 km² in the core area.

· Tanzania Wildlife Research Institute, 2023
Plan your safari

Approximately 1.5 million wildebeest, along with 200,000 zebra and 350,000 Thomson's gazelle, complete the annual circuit. The population has remained stable at this level since the 1970s following recovery from rinderpest disease, which was eradicated from the Serengeti in the 1960s.

Approximately 38% of Tanzania's total land area is under some form of protection — the highest proportion of any country in Africa. This includes 16 national parks, 29 game reserves, 40 game-controlled areas, and the Ngorongoro Conservation Area. The total protected area exceeds 364,000 km².

The Mara River crossings typically occur between July and October, with peak activity in July and August. However, the exact timing depends entirely on rainfall patterns and cannot be guaranteed. The herds may cross multiple times per day or not at all for several days. Staying in the northern Serengeti for a minimum of 3–4 nights significantly increases your chances of witnessing a crossing.

The Serengeti ecosystem supports approximately 3,000–3,500 lions — the largest single population in Africa. Tanzania as a whole holds an estimated 15,000+ lions, representing roughly 40% of Africa's remaining wild lion population. The Serengeti's lion density of approximately one lion per 5 km² in the core area is the highest recorded anywhere on earth.

Ruaha National Park holds the largest elephant population in East Africa, with estimates of 12,000–20,000 individuals in the broader Ruaha-Rungwa ecosystem. Tarangire National Park offers the most reliable dry-season elephant viewing in northern Tanzania, with herds of 200–300 animals congregating along the Tarangire River between July and October.

Tanzania is home to over 1,100 bird species — approximately 10% of all bird species on earth. The country is one of Africa's premier birdwatching destinations, with the Ngorongoro Crater, Lake Manyara, and the Usambara Mountains being particularly rich. Over 30 species are endemic to Tanzania.

figures updated annually from primary sources

Ready to experience it firsthand?

Plan Your Tanzania Safari

Our specialists design bespoke itineraries around the Migration calendar, your preferred parks, and the experiences that matter most to you.

Start Planning