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COUNTY

Monona County

Iowa · 8,539 residents (2025 est.) · 694.072 sq mi
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The short version

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.

At a glance
Lower income
below the US median
US median: $82,259
Older
median age 43.7
US median: 38.9
Less educated
20% hold a bachelor's degree
US average: 36%
Less affordable
home values up 42%, inflation adjusted
US median home: $376,019
Section 01

Population & growth

8,557
−15%since 2000
from 10,020 in 2000
1990 – 2025
12 / sq mi
−6%since 2009
from 13 / sq mi in 2009
US average: 281
43.7
+2%since 2000
from 43.0 in 2000
US average: 38.9

PEP 2025 EST:8,539 residents (Census Bureau Vintage 2025, released March 2026)

Population, 19902024
8K9K9K10K10K1990201020202024Monona County
20249K
1990201020202024
Age distribution, 2024
Under 55.2%(447)
US avg: 5.6%
5 to 96.9%(591)
US avg: 6%
10 to 145.9%(504)
US avg: 6.4%
15 to 196.4%(550)
US avg: 6.6%
20 to 244.3%(367)
US avg: 6.5%
25 to 3410.7%(918)
US avg: 13.7%
35 to 4411.2%(958)
US avg: 13.2%
45 to 5410.7%(917)
US avg: 12.2%
55 to 6414.3%(1,221)
US avg: 12.7%
65 to 7412.8%(1,098)
US avg: 10.2%
75 to 847.3%(622)
US avg: 5.1%
85 and over4.3%(364)
US avg: 1.9%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02

Income & economy

$68,377
+13%inflation adjusted, since 2000
from $33,235 in 2000
US average: $82,259
1990 – 2024
$35,795
+105%since 2000
from $17,477 in 2000
US average: $44,673
Households earning $100K+
45.0%
+28.6 ptssince 2009
from 16.5% in 2009
US average: 53.3%
10.6%
+1.2 ptssince 2000
from 9.4% in 2000
US average: 12.5%
0.413
−1%since 2010
from 0.417 in 2010
US average: 0.476
Workforce by industry, 2024
Agriculture, forestry, fishing11.3%
US avg: 1.6%
Construction11%
US avg: 1.2%
Retail trade10.6%
US avg: 9.9%
Information10%
US avg: 10.8%
Wholesale trade8.5%
US avg: 6.9%
Finance & insurance6.1%
US avg: 5.9%
Other services6%
US avg: 6.7%
Public administration5.4%
US avg: 4.8%
Professional, scientific, technical4%
US avg: 5.1%
Education & health services2.1%
US avg: 0.9%
Transportation & warehousing1.1%
US avg: 2.2%
Arts, entertainment, food0.5%
US avg: 1.9%
Manufacturing0.3%
US avg: 0.4%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03

Housing

$142,900
+42%inflation adjusted, since 2000
from $55,100 in 2000
US average: $376,019
1990 – 2024
$855
+22%inflation adjusted, since 2000
from $384 in 2000
US average: $1,442
75.7%
−0.3 ptssince 2000
from 76.0% in 2000
24.3% rent
11.3%
+2.8 ptssince 2009
from 8.5% in 2009
US average: 10.0%
17.0%
−0.3 ptssince 2009
from 17.3% in 2009
US average: 22.9%
33.6%
+2.4 ptssince 2009
from 31.3% in 2009
US average: 47.4%
2.1
+22%since 2009
from 1.7 in 2009
2009 – 2024
Our index: median home value divided by median household income. Lower is more affordable.
67
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
RELATED:See current rent listings in Monona County on RentDataNow
Section 04

Race & ethnicity

2000
White, non-Hispanic97.9%(9,811)
Black0.1%(8)
Hispanic / Latino0.7%(70)
Asian0.1%(12)
Other0%
2024
White, non-Hispanic92.8%(7,944)
Black0.2%(21)
Hispanic / Latino2.7%(233)
Asian0%(0)
Other4.2%(359)
17
+138%since 2009
from 7 in 2009
2009 – 2024
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
20
−31%since 2020
from 28 in 2020
Our index, 0 to 100. Higher means White and non-White residents are more separated across neighborhoods.
Section 04 · Origins

Detailed origins & ancestry

Hispanic origin
Mexican1.9%(165)
Salvadoran0.1%(12)
Spaniard0.1%(7)
Colombian0.1%(5)
Cuban0%(4)
Ancestry
German33.5%(2,870)
Irish16.3%(1,392)
American11.8%(1,006)
English7.8%(668)
Norwegian5.5%(473)
Swedish3.9%(335)
Danish3.4%(288)
Dutch2.3%(193)
Polish1.5%(129)
Scottish1.5%(129)
French1.4%(119)
Italian1.1%(91)
+ 17 more ancestry groups with data
Scotch-Irish0.4%(36)
Czech0.4%(32)
Welsh0.3%(22)
Finnish0.2%(13)
Hungarian0.1%(12)
British0.1%(8)
Ethiopian0.1%(7)
Swiss0.1%(6)
Russian0%(4)
Belgian0%(2)
Greek0%(1)
RANKED:Largest German population · Largest Irish population · Largest American population · Largest English population · Largest Norwegian population
Section 05

Education

19.6%
+6.2 ptssince 2000
from 13.4% in 2000
US average: 35.6%
High school or higher
92.5%
+10.9 ptssince 2000
from 81.7% in 2000
US average: 89.6%
6.1%
+3.1 ptssince 2000
from 3.1% in 2000
US average: 14.0%
Section 06

Commute & transportation

22.6 min
+26%since 2000
from 18.0 min in 2000
US average: 26.5
81.5%
+5.9 ptssince 2009
from 75.6% in 2009
US average: 68.9%
8.4%
−4.0 ptssince 2009
from 12.4% in 2009
US average: 8.5%
0.1%
Unchangedsince 2009
from 0.2% in 2009
US average: 3.2%
7.7%
+1.7 ptssince 2009
from 6.0% in 2009
US average: 15.0%
1.7%
−2.8 ptssince 2009
from 4.5% in 2009
US average: 2.4%
0.0%
Unchangedsince 2009
from 0.0% in 2009
US average: 0.4%
4.2%
−1.4 ptssince 2009
from 5.6% in 2009
US average: 8.3%
Section 07

Work & employment

1.6%
−3.9 ptssince 2011
from 5.5% in 2011
US average: 5.2%
61.1%
−0.7 ptssince 2011
from 61.8% in 2011
US average: 63.5%
12.3%
−1.9 ptssince 2009
from 14.3% in 2009
US average: 13.1%
36.9%
−22.1 ptssince 2009
from 59.0% in 2009
US average: 42.5%
Section 08

People & community

49.0%
+0.5 ptssince 2009
from 48.5% in 2009
51.0%
−0.5 ptssince 2009
from 51.5% in 2009
0.7%
−0.4 ptssince 2009
from 1.0% in 2009
US average: 14.1%
9.8%
−38.0 ptssince 2009
from 47.8% in 2009
US average: 6.2%
14.2%
+0.1 ptssince 2012
from 14.1% in 2012
US average: 13.3%
3.9%
−87.0 ptssince 2013
from 90.9% in 2013
US average: 8.4%
84.9%
+14.2 ptssince 2017
from 70.7% in 2017
US average: 91.0%
97.7%
−0.4 ptssince 2016
from 98.0% in 2016
US average: 77.7%
2.1%
+0.6 ptssince 2016
from 1.6% in 2016
US average: 13.6%
Marital status
Men 15+
Never married27.2%(936)
Married55.8%(1,925)
Widowed7%(241)
Divorced10%(345)
Women 15+
Never married21.6%(770)
Married55.3%(1,974)
Widowed14.4%(514)
Divorced8.7%(310)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
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Frequently asked

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

How we source and harmonize this data →