Population
35,210
2025
−0.4% since 2020
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. Resident population, July 1 estimate.
The Ottumwa, IA micro area had an estimated 35,210 residents in 2025, down 0.4% (124 fewer people) since 2020.
Data as of 2025 · updated
Map, parcel and listing layers cover North and South Carolina only for now.
35,210
2025
−0.4% since 2020
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. Resident population, July 1 estimate.
−381
2025
−10.8 per 1,000 residents
−1,091 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.
42
2025
−6.7% since 2024
1.2 per 1,000 residents
Source: U.S. Census Bureau, Building Permits Survey, 2025. Housing units authorized by building permits in the year.
$64,766
2020–24
+39.5% since 2016–20
Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2020–24. American Community Survey 5-year estimate.
12,594
2023
−20.1% since 2018
Source: U.S. Census Bureau, County Business Patterns, 2023. Paid employees of private employers in mid-March (County Business Patterns).
−24
2022–23
Source: IRS Statistics of Income, U.S. Population Migration Data, 2022–23. People on tax returns moving in minus moving out, U.S. and abroad; the sum of the member counties (moves between them cancel out).
Population, migration, employment, permits, unemployment and income are the figures each agency publishes for the area itself (OMB Bulletin 23-01 delineation; ACS 2016-20 and CBP 2018 use the delineation of their year). IRS migration is the sum of the member counties.
Net domestic migration was negative in 2025: 381 more people moved out to other U.S. counties than moved in.
Private employers had 12,594 paid employees in mid-March 2023, −20.1% since 2018 (County Business Patterns).
Builders were authorized to start 42 new homes in 2025, or 1.2 per 1,000 residents.
Median household income was $64,766 in the 2020–24 American Community Survey, +39.5% since 2016–20.
Population growth over five years ranks 4th of 15 Iowa micro areas and 342nd of 538 U.S. micro areas.
IRS tax-return data for 2022-2023 show a net loss of 24 people (the sum of its counties).
Email me when Wapello County gets new Census numbers: population, building permits, jobs and income. About 4 emails a year, one click to stop.
| Measure | Among U.S. micro areas |
|---|---|
| Population growth | 342nd of 538 |
| Net domestic migration per 1,000 residents | 509th of 538 |
| Private-sector job growth | 488th of 495 |
| Median household income | 240th of 538 |
| New homes permitted per 1,000 residents | 362nd of 534 |
1st = highest (lowest for unemployment), against areas with a figure for the same period.
Fastest-growing metro areas in Iowa · Fastest-growing metro areas in the U.S.
The County Growth and Demographics Report for Wapello County, IA, the principal county of the Ottumwa, IA area, as a PDF: 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.
Every purchase also includes a CSV of every table in the report, ready for a spreadsheet.
Refund terms: Terms. · How we compute every number
| County | Role | Residents2025 | Share of residents2025 | Change2020–2025 | Share of the change2020–2025 |
|---|---|---|---|---|---|
| Wapello County, IA | Central | 35,210 | 100.0% | −124 (−0.4%) | 100% |
Census Bureau population estimates (July 1). Shares are of the member counties' total; a share of the change shows only when every county moved the same way. – means no figure for the common period.
No. Its population fell 0.4% between 2020 and 2025, about 124 fewer people (Census Bureau population estimates).
On net, none in 2025: about 381 more people moved out to other U.S. counties than moved in (Census Bureau net domestic migration estimate).
About 35,210 people, according to the U.S. Census Bureau's population estimate for July 1, 2025.
Private employers there had 12,594 paid employees in mid-March 2023, −20.1% since 2018 (Census Bureau County Business Patterns; government jobs and the self-employed are not counted).
$64,766 in the 2020–24 American Community Survey 5-year estimates.
Email me when Wapello 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.