Data / Population / Rock County

Population in Rock County

Population in Rock County was 9,524 in 2025, according to the U.S. Census Bureau. That is down 0.4% from 2024. That is the 70th highest of 87 counties in 2025.

2025, persons9,524
Change on 2024-0.4%
Rank70th of 87Counties in Minnesota ranked
Series high9,7002021
Series low9,5242025

Population in Rock County, 2020 to 2025

CSVChart (SVG)

9,5009,5509,6009,6509,7002020202120222023202420252020: 9,685 persons2021: 9,700 persons2022: 9,603 persons2023: 9,621 persons2024: 9,563 persons2025: 9,524 persons
persons. Source: U.S. Census Bureau. Retrieved 2026-10-08, published 2026-03-26.
All 6 values
Periodpersons
20259,524
20249,563
20239,621
20229,603
20219,700
20209,685

Compared with Minnesota and United States

Place2025
Rock County9,524
Minnesota5,830,405
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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What is the latest population in Rock County? Cite the source.
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Questions

What is the population in Rock County?

Population in Rock County was 9,524 in 2025, according to the U.S. Census Bureau. That is down 0.4% from 2024. That is the 70th highest of 87 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 Rock County?

9,700 in 2021, the highest value since 2020 in this series.

More statistics for Rock County

All statistics for Rock County