Population
14,049
2025
−2.0% since 2020
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. Resident population, July 1 estimate.
Butler County had an estimated 14,049 residents in 2025, down 2.0% (288 fewer people) since 2020. That is slower than Iowa as a whole (+1.5%), and the 71st fastest growth of 99 counties in Iowa.
Data as of 2025 · updated
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14,049
2025
−2.0% since 2020
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. Resident population, July 1 estimate.
−10
2025
−0.7 per 1,000 residents
−121 in total, 2021–2025
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. People moving in from other U.S. counties minus people moving out.
3.9%
2025
+0.6 pts since 2019
Source: U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics, 2025. Annual average unemployment rate.
18
2025
1.3 per 1,000 residents
Small base: the change swings on a few homes or people, so we don't show it.
Source: U.S. Census Bureau, Building Permits Survey, 2025. Housing units authorized by building permits in the year.
$73,715
2020–24
+30.5% since 2016–20
Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2020–24. American Community Survey 5-year estimate.
2,602
2023
+4.1% since 2018
Source: U.S. Census Bureau, County Business Patterns, 2023. Paid employees of private employers in mid-March (County Business Patterns).
Net domestic migration was negative in 2025: 10 more people moved out to other U.S. counties than moved in.
Private employers had 2,602 paid employees in mid-March 2023, +4.1% since 2018 (County Business Patterns).
Unemployment averaged 3.9% in 2025, 0.6 points higher than in 2019 (before the pandemic).
Builders were authorized to start 18 new homes in 2025, or 1.3 per 1,000 residents.
Median household income was $73,715 in the 2020–24 American Community Survey, +30.5% since 2016–20.
Across the 3,107 U.S. counties with a comparable estimate, its population growth ranks 2,459th.
Email me when Butler County gets new Census numbers: population, building permits, jobs and income. About 4 emails a year, one click to stop.
| Year | Population | Change |
|---|---|---|
| 2025 | 14,049 | −44 |
| 2024 | 14,093 | −97 |
| 2023 | 14,190 | −68 |
| 2022 | 14,258 | −99 |
| 2021 | 14,357 | +20 |
| 2020 | 14,337 | – |
Census Bureau population estimates, July 1 of each year.
Butler County lost 288 people since 2020; the biggest drag was natural change (−238).
| Component | 2025 | 2020–25 | Share |
|---|---|---|---|
| Natural changebirths minus deaths | −52 | −238 | |
| International migrationfrom and to other countries | +18 | +69 | |
| Domestic migrationfrom and to other U.S. counties | −10 | −121 | |
| Census adjustmentbalancing residual | +0 | +2 | |
| Total change | −44 | −288 |
Census Bureau population estimates, components of change, each year July 1 to June 30. The components add up to the change in the estimate; the Census adjustment is the small balancing figure the Bureau publishes.
| Measure | In Iowa | Among U.S. counties |
|---|---|---|
| Population growth | 71st of 99 | 2,459th of 3,107 |
| Net domestic migration per 1,000 residents | 48th of 99 | 2,031st of 3,108 |
| Private-sector job growth | 29th of 99 | 1,341st of 3,092 |
| Median household income | 32nd of 99 | 928th of 3,107 |
| Lowest unemployment rate | 83rd of 99 | 1,411th of 3,108 |
| New homes permitted per 1,000 residents | 60th of 99 | 1,918th of 3,005 |
1st = highest (lowest for unemployment). Counties are ranked only against others with a figure for the same period.
The County Growth and Demographics Report for Butler County, IA as a PDF, from federal data: population and migration, housing and rents, permits, private employers and jobs, unemployment, ranks in the state and the country, and neighbouring counties, with a source next to every number. Pay once, no subscription.
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Over 2020–25, Butler County's population change (−2.0%) was ahead of 3 of its 8 neighbouring counties and behind 5.
3 of its 8 neighbouring counties had a higher median household income than Butler County's $73,715 (2020–24).
| County | Population2025 | Population change2020–25 | Net domestic migration per 1,000 residents2025 | Homes permitted per 1,000 residents2025 | Median household income2020–24 |
|---|---|---|---|---|---|
| Butler County, IA This county | 14,049 | −2.0% | −0.7 | 1.3 | $73,715 |
| Floyd County, IA | 14,901 | −4.5% | −9.3 | 5.2 | $68,557 |
| Grundy County, IA | 12,361 | +0.2% | −1.5 | 1.6 | $87,205 |
| Franklin County, IA | 9,868 | −1.2% | −10.4 | 0.3 | $59,894 |
| Bremer County, IA | 25,296 | +1.1% | −2.6 | 1.8 | $86,784 |
| Black Hawk County, IA | 131,532 | +0.4% | −4.0 | 3.7 | $66,417 |
| Hardin County, IA | 16,455 | −2.2% | 3.1 | 1.1 | $65,069 |
| Chickasaw County, IA | 11,663 | −2.8% | −5.4 | 0.7 | $75,675 |
| Cerro Gordo County, IA | 42,372 | −1.5% | 3.6 | 2.7 | $68,189 |
Census Bureau population estimates and building permits, American Community Survey 5-year income. Rates per 1,000 residents. – means no figure, or a base too small for a change or rate (it would swing on a few people). A figure from another period shows its year and is left out of the comparison.
No. Its population fell 2.0% between 2020 and 2025, about 288 fewer people (Census Bureau population estimates). Iowa as a whole changed +1.5% over the same years. That ranks 71st of 99 counties in Iowa for population growth.
On net, none in 2025: about 10 more people moved out to other U.S. counties than moved in (Census Bureau net domestic migration estimate).
It averaged 3.9% in 2025 (BLS Local Area Unemployment Statistics, annual average).
About 14,049 people, according to the U.S. Census Bureau's population estimate for July 1, 2025.
Private employers there had 2,602 paid employees in mid-March 2023, +4.1% since 2018 (Census Bureau County Business Patterns; government jobs and the self-employed are not counted).
Map, parcel and listing layers cover North and South Carolina only for now. This page and the other Iowa county pages carry the public federal growth figures.
Email me when Butler County gets new Census numbers: population, building permits, jobs and income. About 4 emails a year, one click to stop.
Each number shows its own period. Changes compare the latest period with five years earlier (or the earliest period available). Beacon CRE last refreshed these figures on 2026-11-05. Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how we compute every number. More on every layer: data sources and licences.
Jobs outside North and South Carolina use County Business Patterns (paid private-sector employees in mid-March); wages and government jobs are not included.