Data / Population / Clinton County

Population in Clinton County

Population in Clinton County was 42,301 in 2025, according to the U.S. Census Bureau. That is up 0.6% from 2024. That is the 58th highest of 88 counties in 2025.

2025, persons42,301
Change on 2024+0.6%
Rank58th of 88Counties in Ohio ranked
Series high42,3012025
Series low41,8932022

Population in Clinton County, 2020 to 2025

CSVChart (SVG)

41.8K41.9K42K42.1K42.2K42.3K42.4K2020202120222023202420252020: 42,035 persons2021: 42,142 persons2022: 41,893 persons2023: 42,007 persons2024: 42,046 persons2025: 42,301 persons
persons. Source: U.S. Census Bureau. Retrieved 2026-10-08, published 2026-03-26.
All 6 values
Periodpersons
202542,301
202442,046
202342,007
202241,893
202142,142
202042,035

Compared with Ohio and United States

Place2025
Clinton County42,301
Ohio11,900,510
United States341,784,857

Rankings

Definition

Resident population. Spain and the EU: 1 January, with Spanish figures from the official municipal register (Padrón). United States: Census Bureau population estimates for 1 July. Other countries and the World: World Bank mid-year estimates, which count all residents regardless of legal status or citizenship.

For Denmark, Statistics Denmark counts the registered resident population on 1 January. Greenland and the Faroe Islands are excluded. The annual series selects the first-quarter reference date from FOLK1A. The World Bank series exists for every country, so use it (through compare) to rank countries on one basis.

How to cite

U.S. Census Bureau. Annual estimates of the resident population for the United States, states and counties, 1 July (Population Estimates Program). https://www2.census.gov/programs-surveys/popest/datasets/2020-2025/. Retrieved 2026-10-08.

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Questions

What is the population in Clinton County?

Population in Clinton County was 42,301 in 2025, according to the U.S. Census Bureau. That is up 0.6% from 2024. That is the 58th highest of 88 counties in 2025.

Where does this figure come from?

U.S. Census Bureau. Annual estimates of the resident population for the United States, states and counties, 1 July (Population Estimates Program). Retrieved by Invokely on 2026-10-08.

What was the highest population in Clinton County?

42,301 in 2025, the highest value since 2020 in this series.

More statistics for Clinton County

All statistics for Clinton County