Data / Population / Adams County

Population in Adams County

Population in Adams County was 3,617 in 2025, according to the U.S. Census Bureau. That is up 0.5% from 2024. That is the 99th highest of 99 counties in 2025.

2025, persons3,617
Change on 2024+0.5%
Rank99th of 99Counties in Iowa ranked
Series high3,7102020
Series low3,5592023

Population in Adams County, 2020 to 2025

CSVChart (SVG)

3,5503,6003,6503,7003,7502020202120222023202420252020: 3,710 persons2021: 3,639 persons2022: 3,600 persons2023: 3,559 persons2024: 3,600 persons2025: 3,617 persons
persons. Source: U.S. Census Bureau. Retrieved 2026-10-08, published 2026-03-26.
All 6 values
Periodpersons
20253,617
20243,600
20233,559
20223,600
20213,639
20203,710

Compared with Iowa and United States

Place2025
Adams County3,617
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.

Use this data in your AI agent

Invokely serves this figure to AI assistants through MCP and to code through a REST API, with the source and citation attached. Ask your assistant:

What is the latest population in Adams County? Cite the source.
get_value {"indicator":"population","place":"us-county-19003"}
GET https://invokely.ai/api/v1/value?indicator=population&place=us-county-19003

Connect Claude, ChatGPT or Cursor in one step. The trial answers 25 calls a day without an account.

Questions

What is the population in Adams County?

Population in Adams County was 3,617 in 2025, according to the U.S. Census Bureau. That is up 0.5% from 2024. That is the 99th 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 Adams County?

3,710 in 2020, the highest value since 2020 in this series.

More statistics for Adams County

All statistics for Adams County