Data / Population / Guernsey County

Population in Guernsey County

Population in Guernsey County was 38,379 in 2025, according to the U.S. Census Bureau. That is up 0.1% from 2024. That is the 64th highest of 88 counties in 2025.

2025, persons38,379
Change on 2024+0.1%
Rank64th of 88Counties in Ohio ranked
Series high38,4262020
Series low38,0562022

Population in Guernsey County, 2020 to 2025

CSVChart (SVG)

38K38.1K38.2K38.3K38.4K38.5K2020202120222023202420252020: 38,426 persons2021: 38,298 persons2022: 38,056 persons2023: 38,132 persons2024: 38,329 persons2025: 38,379 persons
persons. Source: U.S. Census Bureau. Retrieved 2026-10-08, published 2026-03-26.
All 6 values
Periodpersons
202538,379
202438,329
202338,132
202238,056
202138,298
202038,426

Compared with Ohio and United States

Place2025
Guernsey County38,379
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 Guernsey County?

Population in Guernsey County was 38,379 in 2025, according to the U.S. Census Bureau. That is up 0.1% from 2024. That is the 64th 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 Guernsey County?

38,426 in 2020, the highest value since 2020 in this series.

More statistics for Guernsey County

All statistics for Guernsey County