Tanzania vs United Kingdom: Population

Tanzania

66.62 million people

in 2023

United Kingdom

68.68 million people

in 2023

Tanzania rank

22nd

United Kingdom rank

21st

Population over time

United Kingdom currently reports 68.68 million people against 66.62 million people in Tanzania, a difference of 2.07 million people.

Across all 241 years both countries report, United Kingdom has been ahead every year.

Tanzania ranks 22nd and United Kingdom ranks 21st of 238 countries.

Indicator: Population
Unit: people
Source: HYDE (2023); Gapminder (2022); UN WPP (2024) – with major processing by Our World in Data
Licence: CC BY 4.0 (Our World in Data)
Coverage: 239 places, 51,002 data points, 1000–2023
Last refreshed: 07 August 2026

Population by country, available from 10,000 BCE to 2023, based on data and estimates from different sources.