Monona County
Monona County has lower-than-average household income, with a median household income of $68,377. Population has declined 15% since 2000. 20% of adults hold a bachelor's degree or higher, below the national rate of 36%. Median home value has more than doubled since 2000, reaching $142,900.
Population & growth
PEP 2025 EST:8,539 residents (Census Bureau Vintage 2025, released March 2026)
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+ 17 more ancestry groups with data
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How many people live in Monona County, Iowa?
Monona County, Iowa has about 8,557 residents according to the 2024 American Community Survey.
What is the median household income in Monona County, Iowa?
The typical household in Monona County, Iowa earns about $68,377 a year. Half of households make more than that, and half make less.
Is Monona County, Iowa expensive?
In Monona County, Iowa, the median home is worth about $142,900, and the typical rent is about $855 a month.
How educated are people in Monona County, Iowa?
About 19.6% of adults age 25 and over in Monona County, Iowa hold a bachelor's degree or higher.
What is the poverty rate in Monona County, Iowa?
About 10.6% of people in Monona County, Iowa live below the federal poverty line.
Has Monona County, Iowa grown since 1990?
Yes, Monona County, Iowa has shrunk since 1990. The population has lost about 1,477 residents, a change of about -15 percent over that period.
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024