Population
8,539
2025
−2.4% since 2020
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. Resident population, July 1 estimate.
Monona County, IA: population growth, jobs and income
Monona County gained 47 residents between 2024 and 2025 (+0.6%).
Monona County had an estimated 8,539 residents in 2025, down 2.4% (207 fewer people) since 2020. That is slower than Iowa as a whole (+1.5%), and the 78th fastest growth of 99 counties in Iowa.
Data as of 2025 · updated
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In the Monona County report
One-time $99 PDF: everything on this page for Monona County, ranked against Iowa and the U.S., plus these figures that are not on the free page:
- Median gross rent$855/mo2020–24
- Vacant homes, incl. seasonal and second homes11.3%2020–24
- New homes permitted, last 12 months62025-10/2026-09
- Rent growth, 5 yearsIn the report
- Permits in 5+ unit buildingsIn the report
- IRS income moving in (net AGI)In the report
- Neighbouring-county comparison tableIn the report
What's inside: 5 pages
- 1 Summary, headline numbers and ranks (free preview)
- 2 Ranks and the neighbouring-county table
- 3 Migration, with IRS mover and income flows
- 4 Rent, vacant homes, permits and employers
- 5 Every source and the methods
Headline numbers
Net domestic migration
+64
2025
7.5 per 1,000 residents
−22 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.
Unemployment rate
3.0%
2025
+0.2 pts since 2019
Source: U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics, 2025. Annual average unemployment rate.
New homes permitted
7
2025
0.8 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.
Median household income
$68,377
2020–24
+31.8% since 2016–20
Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2020–24. American Community Survey 5-year estimate.
Private-sector employment
1,935
2023
+0.0% since 2018
Source: U.S. Census Bureau, County Business Patterns, 2023. Paid employees of private employers in mid-March (County Business Patterns).
What the numbers say
Net domestic migration added 64 people in 2025: more people moved in from other U.S. counties than moved out.
Private employers had 1,935 paid employees in mid-March 2023, +0.0% since 2018 (County Business Patterns).
Unemployment averaged 3.0% in 2025, 0.2 points higher than in 2019 (before the pandemic).
Builders were authorized to start 7 new homes in 2025, or 0.8 per 1,000 residents.
Median household income was $68,377 in the 2020–24 American Community Survey, +31.8% since 2016–20.
Across the 3,107 U.S. counties with a comparable estimate, its population growth ranks 2,550th.
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Monona County population by year
| Year | Population | Change |
|---|---|---|
| 2025 | 8,539 | +47 |
| 2024 | 8,492 | −47 |
| 2023 | 8,539 | +12 |
| 2022 | 8,527 | −82 |
| 2021 | 8,609 | −137 |
| 2020 | 8,746 | – |
Census Bureau population estimates, July 1 of each year.
What drove the change in Monona County
Monona County lost 207 people since 2020; the biggest drag was natural change (−194).
| Component | 2025 | 2020–25 | Share |
|---|---|---|---|
| Natural changebirths minus deaths | −14 | −194 | |
| International migrationfrom and to other countries | −2 | +9 | |
| Domestic migrationfrom and to other U.S. counties | +64 | −22 | |
| Census adjustmentbalancing residual | −1 | +0 | |
| Total change | +47 | −207 |
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.
How it ranks
| Measure | In Iowa | Among U.S. counties |
|---|---|---|
| Population growth | 78th of 99 | 2,550th of 3,107 |
| Net domestic migration per 1,000 residents | 9th of 99 | 781st of 3,108 |
| Private-sector job growth | 50th of 99 | 1,869th of 3,092 |
| Median household income | 61st of 99 | 1,296th of 3,107 |
| Lowest unemployment rate | 30th of 99 | 393rd of 3,108 |
| New homes permitted per 1,000 residents | 72nd of 99 | 2,206th of 3,005 |
1st = highest (lowest for unemployment). Counties are ranked only against others with a figure for the same period.
Get the county report — $99
The County Growth and Demographics Report for Monona 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.
Add 2 neighbouring counties for $50: the Woodbury County and Crawford County reports too, $149 for all 3.
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Neighbouring counties
Over 2020–25, Monona County's population change (−2.4%) was ahead of 1 of its 6 neighbouring counties and behind 5.
3 of its 6 neighbouring counties had a higher median household income than Monona County's $68,377 (2020–24).
| County | Population2025 | Population change2020–25 | Net domestic migration per 1,000 residents2025 | Homes permitted per 1,000 residents2025 | Median household income2020–24 |
|---|---|---|---|---|---|
| Monona County, IA This county | 8,539 | −2.4% | 7.5 | 0.8 | $68,377 |
| Woodbury County, IA | 106,649 | +0.7% | −6.9 | 2.2 | $73,658 |
| Harrison County, IA | 14,623 | +0.4% | 4.7 | 1.4 | $79,535 |
| Burt County, NE | 6,678 | −0.6% | −3.1 | 1.8 | $63,685 |
| Crawford County, IA | 16,237 | −1.5% | −6.9 | 1.2 | $67,027 |
| Ida County, IA | 6,777 | −3.4% | 4.9 | 0.3 | $63,073 |
| Thurston County, NE | 6,752 | −0.1% | 9.0 | 0.3 | $69,177 |
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.
Questions
Is Monona County growing?
No. Its population fell 2.4% between 2020 and 2025, about 207 fewer people (Census Bureau population estimates). Iowa as a whole changed +1.5% over the same years. That ranks 78th of 99 counties in Iowa for population growth.
How many people moved to Monona County?
On net, about 64 people in 2025: that many more moved in from other U.S. counties than moved out (Census Bureau net domestic migration estimate).
What is the unemployment rate in Monona County?
It averaged 3.0% in 2025 (BLS Local Area Unemployment Statistics, annual average).
What is the population of Monona County?
About 8,539 people, according to the U.S. Census Bureau's population estimate for July 1, 2025.
How many jobs are in Monona County?
Private employers there had 1,935 paid employees in mid-March 2023, +0.0% since 2018 (Census Bureau County Business Patterns; government jobs and the self-employed are not counted).
What Beacon CRE covers in Iowa
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.
Monona County data alerts
Email me when Monona County gets new Census numbers: population, building permits, jobs and income. About 4 emails a year, one click to stop.
Sources and method
- U.S. Census Bureau, Population Estimates Program (Vintage 2025)
- U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics
- U.S. Census Bureau, Building Permits Survey
- U.S. Census Bureau, American Community Survey 5-year estimates
- U.S. Census Bureau, County Business Patterns
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.