Data / Population / Clay County

Population in Clay County

Population in Clay County was 26,410 in 2025, according to the U.S. Census Bureau. That is up 0.2% from 2024. That is the 60th highest of 92 counties in 2025.

2025, persons26,410
Change on 2024+0.2%
Rank60th of 92Counties in Indiana ranked
Series high26,4262020
Series low26,3522024

Population in Clay County, 2020 to 2025

CSVChart (SVG)

26.3K26.4K26.4K26.4K26.4K26.4K2020202120222023202420252020: 26,426 persons2021: 26,395 persons2022: 26,370 persons2023: 26,400 persons2024: 26,352 persons2025: 26,410 persons
persons. Source: U.S. Census Bureau. Retrieved 2026-10-08, published 2026-03-26.
All 6 values
Periodpersons
202526,410
202426,352
202326,400
202226,370
202126,395
202026,426

Compared with Indiana and United States

Place2025
Clay County26,410
Indiana6,973,333
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 Clay County?

Population in Clay County was 26,410 in 2025, according to the U.S. Census Bureau. That is up 0.2% from 2024. That is the 60th highest of 92 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 Clay County?

26,426 in 2020, the highest value since 2020 in this series.

More statistics for Clay County

All statistics for Clay County