City · Iowa
Monona, Iowa
Monona, city, in Clayton County, Iowa. Monona had 1,444 residents on July 1, 2025 by the Census Bureau's estimate, down 2.2% since 2020; the 2020 Census counted 1,471 and the ACS 2020-2024 5-year estimates put it at 1,531 (±216). GEOID 1953310.
Residents, July 2025 estimate
1,444
Census Bureau estimate (no margin published)
2020 Census count: 1,471 · ACS 2020-2024: 1,531 ±216
Median household income
$74,286
±$11,730 (90% margin)
Iowa: $75,059
Median home value
$140,800
±$14,206 (90% margin)
Iowa: $208,000
Median gross rent
$1,070
±$121 (90% margin)
Iowa: $972
Where is Monona and what county is it in?
Monona is a city in Clayton County, Iowa. It covers 1.4 square miles of land, 1,080 residents per square mile in 2020.
Source: 2024 Gazetteer and 2020 place-by-county files, U.S. Census Bureau · Census reference files
How many people live in Monona, and is it growing?
The Census Bureau estimates that 1,444 people lived in Monona on July 1, 2025, down 2.2% since 2020, while Iowa grew 1.5%. The 2020 Census counted 1,471 residents. The 2020-2024 American Community Survey, a five-year sample, puts the population at 1,531 (±216).
| Measure | Monona | Clayton County | Change since 2015-2019 |
|---|---|---|---|
| Total population | 1,531 ±216 | 17,013 | no clear change |
| Households | 686 ±82 | 7,509 | no clear change |
| Average household size | 2.23 ±0.22 | 2.23 | no clear change |
| Housing units | 751 ±90 | 8,796 | no clear change |
Monona's population since 2000
From 1,550 in 2000 to 1,444 in 2025: down 6.8%. The 2000, 2010 and 2020 figures are census counts, each for Monona as it was drawn that year: a place that annexed land, or a community that has since incorporated, covered a different area then. The 2005 figure is the Census Bureau's intercensal estimate, revised to fit the 2000 and 2010 counts and drawn on 2010 boundaries; 2015 and 2025 are July 1 estimates made from the census before them.
Source: The 2000, 2010 and 2020 Census counts and the Census Bureau's population estimates (intercensal 2000-2010, Vintage 2020, Vintage 2025) · Census population estimates
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); Census PEP Vintage 2025 (SUB-EST2025, CO-EST2025); 2020 Census P.L. 94-171 · Check it at data.census.gov
Who lives in Monona?
The median resident of Monona is 42.8 years old; 24.4% are under 18 and 24.7% are 65 or older. The largest group is non-Hispanic white residents at 96.1%, then non-Hispanic residents of two or more races at 2.6%.
| Measure | Monona | Clayton County | Change since 2015-2019 |
|---|---|---|---|
| Median age | 42.8 ±5.8 | 46.4 | no clear change |
| Under 18 years | 24.4% ±5.0 pts | 21.6% | – |
| 65 years and over | 24.7% ±6.2 pts | 25.0% | – |
| Male | 50.9% ±4.2 pts | 50.3% | – |
| Hispanic or Latino (any race) | 0.5% ±0.8 pts | 2.3% | – |
| White alone, not Hispanic | 96.1% ±2.5 pts | 95.0% | no clear change |
| Black or African American alone, not Hispanic | 0.0% ±1.6 pts | 0.6% | – |
| Asian alone, not Hispanic | 0.8% ±1.0 pts | 0.3% | – |
| American Indian and Alaska Native alone, not Hispanic | 0.0% ±1.6 pts | 0.0% | – |
| Native Hawaiian and Other Pacific Islander alone, not Hispanic | 0.0% ±1.6 pts | 0.0% | – |
| Two or more races, not Hispanic | 2.6% ±1.8 pts | 1.7% | – |
| Some other race alone, not Hispanic | 0.0% ±1.6 pts | 0.0% | – |
| Born outside the United States | 1.3% ±1.1 pts | 2.3% | – |
| Speak a language other than English at home (age 5+) | 2.2% ±1.7 pts | 5.7% | – |
| Civilian veterans (age 18+) | 6.9% ±2.7 pts | 8.2% | – |
| With a disability | 14.8% ±4.1 pts | 14.7% | – |
| No health insurance coverage | 3.1% ±1.7 pts | 8.4% | no clear change |
| High school graduate or higher (age 25+) | 94.1% ±3.1 pts | 92.6% | – |
| Bachelor's degree or higher (age 25+) | 12.6% ±4.1 pts | 14.5% | no clear change |
| Graduate or professional degree (age 25+) | 2.3% ±1.3 pts | 3.9% | – |
| Lived in the same house a year earlier | 93.9% ±3.1 pts | 90.0% | – |
| Moved from another state in the past year | 2.4% ±2.3 pts | 1.4% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profiles DP02, DP05) · Check it at data.census.gov
What do households in Monona earn?
Half of Monona's 686 households earn less than $74,286 a year (±$11,730), against $67,242 in Clayton County and $75,059 in Iowa. In 2015-2019 the median was $52,147 in 2024 dollars, so it rose by $22,139 after inflation. 7.3% of residents live below the poverty line.
| Measure | Monona | Clayton County | Change since 2015-2019 |
|---|---|---|---|
| Median household income | $74,286 ±$11,730 | $67,242 | +$22,139 |
| Mean household income | $86,442 ±$9,861 | $86,441 | – |
| Per capita income | $37,899 ±$4,567 | $38,594 | no clear change |
| People below the poverty line | 7.3% ±3.0 pts | 10.9% | no clear change |
| Children under 18 below the poverty line | 3.9% ±4.1 pts | 12.4% | – |
| Households receiving SNAP | 3.2% ±1.9 pts | 6.7% | – |
| Households with a computer | 88.5% ±5.2 pts | 89.5% | – |
| Households with a broadband subscription | 81.2% ±7.5 pts | 84.4% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What does housing cost in Monona?
Owners occupy 74.2% of Monona's occupied homes and renters 25.8%. The median owner-occupied home is valued at $140,800 by its owner (±$14,206). The median renter pays $1,070 a month including utilities, and 37.9% of renters pay 35% or more of their income on rent.
| Measure | Monona | Clayton County | Change since 2015-2019 |
|---|---|---|---|
| Median home value (owner-occupied) | $140,800 ±$14,206 | $168,500 | no clear change |
| Median gross rent | $1,070 ±$121 | $790 | no clear change |
| Renters paying 35% or more of income on rent | 37.9% ±16.2 pts | 36.3% | no clear change |
| Median monthly owner costs, with a mortgage | $1,141 ±$66 | $1,354 | – |
| Owner-occupied homes | 74.2% ±7.2 pts | 78.0% | no clear change |
| Renter-occupied homes | 25.8% ±7.2 pts | 22.0% | – |
| Housing units | 751 ±90 | 8,796 | no clear change |
| Homeowner vacancy rate | 0.0% ±4.7 pts | 0.8% | – |
| Rental vacancy rate | 4.8% ±7.7 pts | 2.9% | – |
| Single-family detached homes | 74.4% ±7.3 pts | 81.2% | – |
| Mobile homes | 0.0% ±3.3 pts | 4.5% | – |
| Built 2020 or later | 0.0% ±3.3 pts | 1.1% | – |
| Built 2010 to 2019 | 1.5% ±1.4 pts | 7.6% | – |
| Built 1939 or earlier | 50.5% ±8.0 pts | 36.6% | – |
| Households with no vehicle | 9.3% ±5.1 pts | 6.9% | – |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP04) · Check it at data.census.gov
How many new homes is Monona building?
Builders took permits for 0 new housing units in Monona in 2025 (0 in single-family houses), 0.0 per 1,000 residents against 4.2 across Iowa.
Counts of units in permits a local office issued; not every permitted unit is built. A year marked with months was reported for part of the year.
Source: Building Permits Survey, annual place files 2019-2025, U.S. Census Bureau · Census Building Permits Survey
How do people in Monona work and get to work?
78.6% of Monona's workers drive alone and 8.7% work from home. The average trip to work takes 27.7 minutes.
| Measure | Monona | Clayton County | Change since 2015-2019 |
|---|---|---|---|
| In the labor force (age 16+) | 71.4% ±6.4 pts | 61.7% | – |
| Unemployment rate | 0.9% ±1.0 pts | 2.5% | – |
| Drove alone to work | 78.6% ±7.1 pts | 76.4% | – |
| Carpooled | 4.2% ±2.9 pts | 7.5% | – |
| Public transportation | 0.0% ±2.9 pts | 0.0% | – |
| Walked | 7.4% ±4.6 pts | 4.1% | – |
| Worked from home | 8.7% ±4.7 pts | 8.3% | +6.4 pts |
| Mean travel time to work | 27.7 min ±4.1 | 23.1 min | +6.9 min |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) (Data Profile DP03) · Check it at data.census.gov
What census tracts are in Monona?
No census tract lies mostly in Monona; 1 tract reaches into it (2020 census blocks).
| Tract | Residents, 2020-2024 | Median household income |
|---|---|---|
| Tract 702Clayton County | 3,316 | $76,161 |
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026); 2020 block assignment files (tract share = share of the tract's census blocks in Monona) · Census block assignment files
How does Monona compare with other places in Iowa?
By the Census Bureau's July 2025 estimates, Monona is the 8,868th-most populous of the 19,476 U.S. incorporated places that have one and the 214th-most populous of 939 in Iowa.
Monona ranks 116th of 279 places in Iowa with 1,000 or more residents and a reliable estimate, by median household income.
| Measure | Rank | Of |
|---|---|---|
| Population, July 2025 estimate | 214th | 939 |
| Growth 2020-2025 (PEP) | 197th | 275 |
| Residents per square mile | 139th | 279 |
| Median household income | 116th | 279 |
| Per capita income | 125th | 279 |
| Median home value | 194th | 279 |
| Median gross rent | 36th | 266 |
| Poverty rate | 169th | 232 |
| Bachelor's degree or higher | 273rd | 279 |
| Median age | 73rd | 279 |
| Owner-occupied share | 135th | 279 |
| Work from home | 121st | 221 |
| Travel time to work | 13th | 279 |
Monona's figures with every place in Iowa (CSV)
Every place in Iowa, sortable · Compare Monona with other places
Source: PlainCities ranks computed from the American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026) and PEP Vintage 2025 · How ranks are computed
How reliable are the figures for Monona?
19 of the 57 figures for Monona on this page carry a coefficient of variation over 40% and are marked with a ring: they come from a small sample, so read them as rough.
The American Community Survey samples about one household in eight over five years, so every figure is an estimate with a 90% margin of error (shown under each value). A ring marks an estimate whose coefficient of variation is over 40%. A change is called only when the gap between the two periods is larger than their combined 90% margin (the square root of the sum of the two squared margins), the Census Bureau's test. How to read a margin of error.
Source: American Community Survey 2020-2024 5-year estimates, U.S. Census Bureau (released January 2026): margins of error as published · ACS technical documentation
How these figures are made: methodology and release checks · reading a margin of error · every state · corrections
Not on this page: crime, weather and schools for Monona are other agencies' records. Crime: the FBI's Crime Data Explorer · climate: NOAA's U.S. Climate Normals · schools: the National Center for Education Statistics' public schools in Monona.