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

Latest (2023)
1.09 million people
Change on year
up 2.0%
World rank
12th
of 236 countries
All-time high
1.09 million people
in 2023
All-time low
144,365 people
in 1951
Years of data
74
1950–2023

Number of 1-year-olds, by sex in Tanzania, 1950–2023

200.0k400.0k600.0k800.0k1.0M195019862023

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.

Number of 1-year-olds, by sex in Tanzania, year by year

Annual values for Number of 1-year-olds, by sex in Tanzania, 1950 to 2023.
Year people Change
1950 145,958 people
1951 144,365 people -1.1%
1952 147,470 people +2.2%
1953 152,161 people +3.2%
1954 156,977 people +3.2%
1955 161,875 people +3.1%
1956 167,211 people +3.3%
1957 173,255 people +3.6%
1958 179,987 people +3.9%
1959 186,744 people +3.8%
1960 193,144 people +3.4%
1961 199,849 people +3.5%
1962 206,798 people +3.5%
1963 214,088 people +3.5%
1964 221,929 people +3.7%
1965 229,722 people +3.5%
1966 237,617 people +3.4%
1967 246,339 people +3.7%
1968 255,714 people +3.8%
1969 264,824 people +3.6%
1970 274,543 people +3.7%
1971 285,402 people +4.0%
1972 296,897 people +4.0%
1973 308,181 people +3.8%
1974 319,392 people +3.6%
1975 332,505 people +4.1%
1976 345,204 people +3.8%
1977 356,305 people +3.2%
1978 367,719 people +3.2%
1979 379,099 people +3.1%
1980 389,784 people +2.8%
1981 399,425 people +2.5%
1982 408,422 people +2.3%
1983 417,750 people +2.3%
1984 427,899 people +2.4%
1985 436,952 people +2.1%
1986 444,671 people +1.8%
1987 452,115 people +1.7%
1988 460,248 people +1.8%
1989 470,821 people +2.3%
1990 480,587 people +2.1%
1991 487,983 people +1.5%
1992 496,427 people +1.7%
1993 506,816 people +2.1%
1994 518,447 people +2.3%
1995 532,986 people +2.8%
1996 551,142 people +3.4%
1997 570,091 people +3.4%
1998 585,220 people +2.7%
1999 600,894 people +2.7%
2000 618,159 people +2.9%
2001 633,933 people +2.6%
2002 651,448 people +2.8%
2003 669,369 people +2.8%
2004 690,567 people +3.2%
2005 716,094 people +3.7%
2006 740,303 people +3.4%
2007 758,899 people +2.5%
2008 770,394 people +1.5%
2009 779,944 people +1.2%
2010 792,169 people +1.6%
2011 806,548 people +1.8%
2012 819,817 people +1.6%
2013 838,444 people +2.3%
2014 868,876 people +3.6%
2015 900,785 people +3.7%
2016 922,568 people +2.4%
2017 946,514 people +2.6%
2018 979,337 people +3.5%
2019 1.01 million people +2.9%
2020 1.03 million people +2.2%
2021 1.05 million people +1.9%
2022 1.07 million people +2.0%
2023 1.09 million people +2.0%

Tanzania compared with similar countries

  • Tanzania's 1.09 million people is above the median for lower middle income countries, which is 123,421 people, 8.8× the median. (47 countries reporting)
  • Tanzania's 1.09 million people is above the median for Sub-Saharan Africa, which is 218,973 people, 5.0× the median. (48 countries reporting)

Averages by decade

DecadeAverage LowestHighest 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

  1. 9 Bangladesh 1.64 million people compare
  2. 10 Brazil 1.28 million people compare
  3. 11 Egypt 1.13 million people compare
  4. 13 Mexico 1.01 million people compare
  5. 14 Philippines 857,980 people compare
  6. 15 Uganda 803,404 people compare

See the full ranking of 236 places →

More reference data data for Tanzania

All data for Tanzania →

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.

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Number of 1-year-olds, by sex in Tanzania. Statizoid, drawing on UN, World Population Prospects (2024) – processed by Our World in Data. Retrieved 23 September 2026, from https://reference.statizoid.com/stat/number-of-one-year-olds/tanzania/

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About this data

Indicator
Number of 1-year-olds, by sex
Unit
people
Source
UN, World Population Prospects (2024) – processed by Our World in Data
Licence
CC BY 4.0 (Our World in Data)
Coverage
236 places, 17,464 data points, 1950–2023
Last refreshed

Total population, measured on 1 July of the year shown. This only includes women aged 1.