Data / Population / Audubon County

Population in Audubon County

Population in Audubon County was 5,509 in 2025, according to the U.S. Census Bureau. That is down 0.7% from 2024. That is the 97th highest of 99 counties in 2025.

2025, persons5,509
Change on 2024-0.7%
Rank97th of 99Counties in Iowa ranked
Series high5,6802020
Series low5,5092025

Population in Audubon County, 2020 to 2025

CSVChart (SVG)

5,5005,5505,6005,6505,7002020202120222023202420252020: 5,680 persons2021: 5,642 persons2022: 5,567 persons2023: 5,527 persons2024: 5,548 persons2025: 5,509 persons
persons. Source: U.S. Census Bureau. Retrieved 2026-10-08, published 2026-03-26.
All 6 values
Periodpersons
20255,509
20245,548
20235,527
20225,567
20215,642
20205,680

Compared with Iowa and United States

Place2025
Audubon County5,509
Iowa3,238,387
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 Audubon County?

Population in Audubon County was 5,509 in 2025, according to the U.S. Census Bureau. That is down 0.7% from 2024. That is the 97th highest of 99 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 Audubon County?

5,680 in 2020, the highest value since 2020 in this series.

More statistics for Audubon County

All statistics for Audubon County