Data / Population / Hancock County

Population in Hancock County

Population in Hancock County was 16,803 in 2025, according to the U.S. Census Bureau. That is down 0.8% from 2024. That is the 61st highest of 102 counties in 2025.

2025, persons16,803
Change on 2024-0.8%
Rank61st of 102Counties in Illinois ranked
Series high17,5702020
Series low16,8032025

Population in Hancock County, 2020 to 2025

CSVChart (SVG)

16.8K17K17.2K17.4K17.6K2020202120222023202420252020: 17,570 persons2021: 17,412 persons2022: 17,265 persons2023: 17,192 persons2024: 16,936 persons2025: 16,803 persons
persons. Source: U.S. Census Bureau. Retrieved 2026-10-08, published 2026-03-26.
All 6 values
Periodpersons
202516,803
202416,936
202317,192
202217,265
202117,412
202017,570

Compared with Illinois and United States

Place2025
Hancock County16,803
Illinois12,719,141
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 Hancock County?

Population in Hancock County was 16,803 in 2025, according to the U.S. Census Bureau. That is down 0.8% from 2024. That is the 61st highest of 102 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 Hancock County?

17,570 in 2020, the highest value since 2020 in this series.

More statistics for Hancock County

All statistics for Hancock County