Number of 1-year-olds, by sex in Tanzania
Tanzania: Number of 1-year-olds, by sex was 1.09 million people in 2023. ◆ Volatile
Number of 1-year-olds, by sex in Tanzania, 1950–2023
Source: UN, World Population Prospects (2024) – processed by Our World in Data. Measured in people.
Analysis
The most recent figure for number of 1-year-olds, by sex in Tanzania is 1.09 million people, measured in 2023. That is the highest value across all 74 years on record.
That represents a change of up 2.0% on the previous year and up 30.2% over ten years.
Over the whole period, number of 1-year-olds, by sex in Tanzania peaked at 1.09 million people in 2023 and was at its lowest, 144,365 people, in 1951.
Tanzania ranks 12th of 236 countries on this measure, in the top 10%.
The series is highly variable year to year, so single readings are best treated with caution.
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1950s | 161,600 people | 144,365 people | 186,744 people | 10 |
| 1960s | 227,002 people | 193,144 people | 264,824 people | 10 |
| 1970s | 326,525 people | 274,543 people | 379,099 people | 10 |
| 1980s | 430,809 people | 389,784 people | 470,821 people | 10 |
| 1990s | 533,059 people | 480,587 people | 600,894 people | 10 |
| 2000s | 702,911 people | 618,159 people | 779,944 people | 10 |
| 2010s | 888,292 people | 792,169 people | 1.01 million people | 10 |
| 2020s | 1.06 million people | 1.03 million people | 1.09 million people | 4 |
Countries ranked near Tanzania
- 9 Bangladesh 1.64 million people compare
- 10 Brazil 1.28 million people compare
- 11 Egypt 1.13 million people compare
- 14 Philippines 857,980 people compare
- 15 Uganda 803,404 people compare
More reference data data for Tanzania
- Temperature anomalies by month 0.5126 °C (2026)
- Summer temperature anomalies 0.3295 °C (2026)
- Spring temperature anomalies -0.6683 °C (2026)
- Universal right to vote in practice 2 (2025)
- Universal right to vote 2 (2025)
- Winter temperature anomalies 0.6747 °C (2025)
- Consumer price index 231.54 2010 = 100 (2025)
- Autumn temperature anomalies 0.5023 °C (2025)
- Elected parliament 1 (2025)
- Democracy 3 (2025)
Frequently asked questions
- What is number of 1-year-olds, by sex in Tanzania?
- Number of 1-year-olds, by sex in Tanzania was 1.09 million people in 2023, according to UN, World Population Prospects (2024) – processed by Our World in Data.
- What is the highest number of 1-year-olds, by sex recorded in Tanzania?
- The highest recorded value was 1.09 million people in 2023.
- What is the lowest number of 1-year-olds, by sex recorded in Tanzania?
- The lowest recorded value was 144,365 people in 1951.
- How does Tanzania rank for number of 1-year-olds, by sex?
- Tanzania ranks 12th out of 236 countries with data for 2023.
- Is number of 1-year-olds, by sex rising or falling in Tanzania?
- Over the last ten years it is up 30.2%. The long-run trend across the full record is volatile.
- Where does this Tanzania data come from?
- The figures come from UN, World Population Prospects (2024) – processed by Our World in Data, published as part of Number of 1-year-olds, by sex. Statizoid updates them automatically from the source API.
Download this data
CSV · JSON — 74 observations, free to reuse under CC BY 4.0 (Our World in Data).
About this data
The total population, measured on 1 July of the year shown. This only includes women aged 1.