Data / Population / Humboldt County

Population in Humboldt County

Population in Humboldt County was 9,409 in 2025, according to the U.S. Census Bureau. That is down 1% from 2024. That is the 79th highest of 99 counties in 2025.

2025, persons9,409
Change on 2024-1%
Rank79th of 99Counties in Iowa ranked
Series high9,6352021
Series low9,4092025

Population in Humboldt County, 2020 to 2025

CSVChart (SVG)

9,4009,4509,5009,5509,6009,6502020202120222023202420252020: 9,599 persons2021: 9,635 persons2022: 9,540 persons2023: 9,522 persons2024: 9,505 persons2025: 9,409 persons
persons. Source: U.S. Census Bureau. Retrieved 2026-10-08, published 2026-03-26.
All 6 values
Periodpersons
20259,409
20249,505
20239,522
20229,540
20219,635
20209,599

Compared with Iowa and United States

Place2025
Humboldt County9,409
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 Humboldt County?

Population in Humboldt County was 9,409 in 2025, according to the U.S. Census Bureau. That is down 1% from 2024. That is the 79th 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 Humboldt County?

9,635 in 2021, the highest value since 2020 in this series.

More statistics for Humboldt County

All statistics for Humboldt County