Land
Size, shape and altitude
How big is it, really?
The Comoros fits inside Tanzania 509 times.
Comoros: 1,861 km² (2023) · Tanzania: 947,300 km² (2023)
How much coast is there?
Tanzania’s coastline is 4.2 times as long as the Comoros’.
Comoros: 340 km (2026 edition) · Tanzania: 1,424 km (2026 edition)
How high can you climb?
Tanzania’s highest peak towers 3,535 m above the Comoros’.
Comoros: 2,360 m (2026 edition) · Tanzania: 5,895 m (2026 edition)
People
Who lives there, and how closely
How many people live there?
Tanzania has 80 times as many people as the Comoros.
Comoros: 882,847 (2025) · Tanzania: 70.5 million (2025)
How crowded is it?
The Comoros is 6 times as densely populated as Tanzania.
Comoros: 474 per km² (2025) · Tanzania: 80 per km² (2025)
How tall are the men?
The Comoros and Tanzania are practically level.
Comoros: 167.7 cm (2019) · Tanzania: 167 cm (2019)
How tall are the women?
Tanzania and the Comoros are practically level.
Comoros: 156.5 cm (2019) · Tanzania: 156.9 cm (2019)
How old is the typical person?
The typical person in the Comoros is 3.1 years older than in Tanzania.
Comoros: 20.3 years (2023) · Tanzania: 17.2 years (2023)
How many children per woman?
Women in Tanzania have 0.7 more children on average than in the Comoros.
Comoros: 3.82 children per woman (2024) · Tanzania: 4.54 children per woman (2024)
How many people are 65 or older?
4.5% of people in the Comoros are 65 or older, versus 3.0% in Tanzania.
Comoros: 4.5% (2025) · Tanzania: 3% (2025)
How many Nobel laureates were born there?
Comoros: no data · Tanzania: 0 (2025)
How many official languages?
The Comoros has 3 official languages, Tanzania 2.
Comoros: 3 (2026) · Tanzania: 2 (2026)
Money
What an economy looks like per person
How big is the economy?
Tanzania’s economy is 50 times the size of the Comoros’.
Comoros: $1.81 billion (2025) · Tanzania: $90.1 billion (2025)
How much is produced per person?
Tanzania produces 5% more per person than the Comoros.
Comoros: Int$4,238 (2025) · Tanzania: Int$4,471 (2025)
How evenly is income shared?
Income is more unequally shared in Tanzania than in the Comoros (Gini 10.2 points higher).
Comoros: 30.3 (2024) · Tanzania: 40.5 (2018)
How many people are looking for work?
Unemployment is 3.8% in the Comoros, versus 1.6% in Tanzania.
Comoros: 3.8% (2025) · Tanzania: 1.6% (2025)
How much goes to the military?
Comoros: no data · Tanzania: 1.2% (2024)
How expensive is it?
The Comoros’ price level (US = 100) is 1.6× Tanzania’s.
Comoros: 49% (2025) · Tanzania: 29% (2025)
Health
Long lives, small beginnings
How much is spent on health?
The Comoros spends 2.8 times as much on health per person as Tanzania.
Comoros: $102 (2023) · Tanzania: $36 (2023)
How long do people live?
Tanzania and the Comoros are practically level.
Comoros: 67 years (2024) · Tanzania: 67.2 years (2024)
How many babies don’t reach their first birthday?
A baby in the Comoros is 22% more likely to die before turning one than in Tanzania.
Comoros: 35 per 1,000 (2024) · Tanzania: 28.7 per 1,000 (2024)
How many doctors are there?
The Comoros has 3.2 times as many doctors per person as Tanzania.
Comoros: 0.4 per 1,000 (2022) · Tanzania: 0.1 per 1,000 (2022)
How common is obesity?
16% of adults in the Comoros are obese, versus 10% in Tanzania.
Comoros: 16.1% (2024) · Tanzania: 10.5% (2024)
How many adults smoke?
8.9% of adults in the Comoros smoke, versus 7.7% in Tanzania.
Comoros: 8.9% (2024) · Tanzania: 7.7% (2024)
Everyday life
Plates, glasses and happiness
How do people rate their lives?
People in the Comoros rate their lives 0.02 points higher than in Tanzania.
Comoros: 3.93 (2025) · Tanzania: 3.90 (2025)
How much do people drink?
Adults in Tanzania drink 11 times as much alcohol as in the Comoros.
Comoros: 0.1 litres (2023) · Tanzania: 1.5 litres (2023)
How much meat is on the menu?
The Comoros has 2.2 times as much meat per person as Tanzania.
Comoros: 26.6 kg (2023) · Tanzania: 12.2 kg (2023)
How much food is there per day?
Tanzania has 128 kcal more food per person per day than the Comoros.
Comoros: 2,390 kcal (2023) · Tanzania: 2,518 kcal (2023)
How long do people work?
Comoros: no data · Tanzania: 2,129 hours (2023)
How long do people go to school?
Adults in Tanzania went to school 0.06 years longer than in the Comoros.
Comoros: 6 years (2023) · Tanzania: 6.1 years (2023)
How many tourists visit?
The Comoros welcomed 2.6 times as many tourists per resident as Tanzania (2019).
Comoros: 0.06 (2019) · Tanzania: 0.02 (2022)
Connected
Online, electrified, urban
How many people are online?
33% of people in the Comoros are online, versus 31% in Tanzania.
Comoros: 33% (2024) · Tanzania: 31% (2024)
Who has electricity at home?
92% of people in the Comoros have electricity, versus 52% in Tanzania.
Comoros: 91.7% (2024) · Tanzania: 52.4% (2024)
How many live in cities?
37% of people in Tanzania live in cities, versus 34% in the Comoros.
Comoros: 34% (2025) · Tanzania: 37% (2025)
How many phones per person?
Tanzania has 127 mobile subscriptions per 100 people, the Comoros 110.
Comoros: 110 (2023) · Tanzania: 127 (2024)
How much railway is there?
Comoros: no data · Tanzania: 2,701 km (2017)
How much do they fly?
Comoros: no data · Tanzania: 0.03 (2023)
Planet
Air, forests and energy
How much of the land is forest?
Forest covers 50% of Tanzania, but only 17% of the Comoros.
Comoros: 17% (2023) · Tanzania: 50.1% (2023)
How much CO₂ does each person emit?
The average person in the Comoros emits 2.2 times as much CO₂ as someone in Tanzania.
Comoros: 0.6 t (2024) · Tanzania: 0.3 t (2024)
How green is the power grid?
33% of Tanzania’s electricity is renewable, versus 0.0% in the Comoros.
Comoros: 0% (2023) · Tanzania: 32.9% (2024)
How clean is the air?
The air in Tanzania carries 2.3 times as much fine dust as in the Comoros.
Comoros: 10.5 µg/m³ (2024) · Tanzania: 24.6 µg/m³ (2024)
Safety
Measured risk, not vibes
How common is murder?
Comoros: no data · Tanzania: 3.7 per 100k (2020)
How dangerous are the roads?
Roads in the Comoros are 84% deadlier than in Tanzania.
Comoros: 29 per 100k (2021) · Tanzania: 15.8 per 100k (2021)
Climate
What the year feels like
How warm is it?
The Comoros is on average 2.2 °C warmer than Tanzania.
Comoros: 25.3°C (2016–2025 avg) · Tanzania: 23.1°C (2016–2025 avg)
How much rain falls?
The Comoros gets 24% more rain than Tanzania.
Comoros: 1,369 mm (2016–2025 avg) · Tanzania: 1,102 mm (2016–2025 avg)
Quick answers
Is the Comoros bigger than Tanzania?
Tanzania is larger. The Comoros fits inside Tanzania 509 times.
Which has more people, the Comoros or Tanzania?
Tanzania has 80 times as many people as the Comoros (2025 estimates).
Where do people live longer, the Comoros or Tanzania?
Tanzania and the Comoros are practically level. Life expectancy at birth is 67.0 years in the Comoros and 67.2 in Tanzania.
Are people taller in the Comoros or Tanzania?
The Comoros and Tanzania are practically level (NCD-RisC, cohort born 2019).
