T1D Index estimates for 2025 · IDF Africa region · Lower-Middle-Income country
An estimated 26,948 people are living with type 1 diabetes in Tanzania in 2025. Each year about 3,102 people are newly diagnosed and 1,446 people with T1D die. A further 32,245 people would be alive today had they not died early from type 1 diabetes.
People living with T1D
26,948
New diagnoses this year
3,102
Deaths this year
1,446
Missing people
32,245
Expected age at death, diagnosed at 10
31.1years
How many people have type 1 diabetes in Tanzania?
26,948 people in Tanzania are living with type 1 diabetes in 2025, or 38.2 per 100,000 people. That is higher than the Africa average of 29.7 per 100,000 and lower than the global average of 115.5. Tanzania has the 49th-largest number of people living with T1D of the 202 countries in the T1D Index, and the 3rd-largest of the 49 countries in the IDF Africa region.
For every 100 people living with T1D in Tanzania, another 120 are missing: people who would be alive today had they not died early from T1D.
Is type 1 diabetes increasing in Tanzania?
The number of people living with T1D in Tanzania went from 2,612 in 2000 to 26,948 in 2025, and is projected to rise to 67,249 by 2040 (+150%).
People living with type 1 diabetes in Tanzania, 2000–2040. Solid line: modelled estimates to 2025; dashed line: projection to 2040.
Type 1 diabetes in Tanzania over time, all ages
Year
Living with T1D
New diagnoses
Deaths
Missing people
2000
2,612
709
750
10,514
2010
6,357
1,336
1,071
17,767
2020
17,796
2,388
1,055
26,911
2025
26,948
3,102
1,446
32,245
2030 (projected)
38,796
4,401
2,013
39,572
2040 (projected)
67,249
5,708
3,124
61,615
What is the life expectancy with type 1 diabetes in Tanzania?
A 10-year-old diagnosed with type 1 diabetes in Tanzania today is expected to live to 31.1, compared with 70.2 for a 10-year-old without T1D: 39.2 years of life lost. Counting years lived with complications as well, T1D costs 42.8 years of healthy life at today's level of care. If everyone received timely diagnosis, insulin and test strips, and insulin pumps and CGMs, that loss would fall to 15.9 years.
Healthy years of life for a 10-year-old diagnosed with T1D in Tanzania, as each level of care is added in turn
Level of care
Healthy years restored
Healthy years of life
Healthy years still lost
Current level of care
–
27.5
42.8
+ Timely diagnosis for everyone
+3.9
31.4
38.8
+ Insulin and test strips for everyone
+15.7
47.1
23.2
+ Insulin pumps and CGMs for everyone
+7.2
54.3
15.9
How does Tanzania compare?
Type 1 diabetes in Tanzania compared with the Africa region and the world, 2025
2025
Tanzania
Africa
World
People living with T1D per 100,000
38.2
29.7
115.5
New diagnoses per 100,000
4.4
4.0
6.2
Missing people per 100 living with T1D
119.7
160.4
43.0
Expected age at death, 10-year-old with T1D
31.1
24.4
51.3
Expected age at death, 10-year-old in general population
All figures are T1D Index version 3.0 estimates for all ages. Missing people are those who would be alive today had they not died early from type 1 diabetes. Expected age at death is for a 10-year-old. See Data & Methods for how the estimates are made and the peer-reviewed publications behind them.
