COUNTY
Jefferson County
Iowa · 15,291 residents (2025 est.) · 435.524 sq mi
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The short version
Jefferson County has notably lower household income than the US average, with a median household income of $61,620. Population has held roughly steady since 2000. Median home value has more than doubled since 2000, reaching $163,400.
At a glance
Lower income
below the US median
US median: $82,259
Older
median age 43.7
US median: 38.9
More educated
43% hold a bachelor's degree
US average: 36%
Stable housing
home values roughly flat, inflation adjusted
US median home: $376,019
Section 01
Population & growth
PEP 2025 EST:15,291 residents (Census Bureau Vintage 2025, released March 2026)
Population, 1990 – 2024
202416K
Age distribution, 2024
Under 54.6%(725)
5 to 95.8%(913)
10 to 143.7%(578)
15 to 195%(789)
20 to 246%(942)
25 to 3415.4%(2,411)
35 to 4410.9%(1,705)
45 to 549.6%(1,503)
55 to 6412.4%(1,947)
65 to 7417.1%(2,691)
75 to 847.4%(1,156)
85 and over2.2%(345)
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 02
Income & economy
$61,620
Unchangedinflation adjusted, since 2000
from $33,851 in 2000
US average: $82,259
1990 – 2024
Households earning $100K+
40.6%
+18.4 ptssince 2009
from 22.2% in 2009
US average: 53.3%
Workforce by industry, 2024
Information13.6%
Retail trade12%
Other services11.4%
Public administration9.6%
Wholesale trade9.1%
Arts, entertainment, food1.8%
Agriculture, forestry, fishing1.4%
Construction1.4%
Finance & insurance1.1%
Professional, scientific, technical1.1%
Transportation & warehousing1.1%
Manufacturing0%
Education & health services0%
BAR + DOT: THIS PLACE · TICK: US AVERAGE
Section 03
Housing
$163,400
+23%inflation adjusted, since 2000
from $72,700 in 2000
US average: $376,019
1990 – 2024
2.7
+18%since 2009
from 2.2 in 2009
2009 – 2024
Our index: median home value divided by median household income. Lower is more affordable.
57
Our index, 0 to 100. Higher means faster recent growth in incomes, home values, and college degrees.
RELATED:See current rent listings in Jefferson County on RentDataNow
Section 04
Race & ethnicity
2000
White, non-Hispanic94.7%(15,329)
Black0.6%(102)
Hispanic / Latino1.8%(297)
Asian1.7%(275)
Other0%
2024
White, non-Hispanic82.4%(12,941)
Black2.4%(377)
Hispanic / Latino4.1%(644)
Asian8.2%(1,285)
Other2.9%(458)
39
+144%since 2009
from 16 in 2009
2009 – 2024
Our index, 0 to 100. Higher means a more even mix of racial and ethnic groups.
28
Unchangedsince 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
Mexican2.3%(354)
South American0.9%(148)
Colombian0.7%(112)
Puerto Rican0.5%(76)
Ecuadorian0.2%(30)
Dominican0.1%(13)
Asian origin
Vietnamese2.8%(440)
Mongolian1.9%(301)
Nepalese0.9%(146)
Asian Indian0.9%(136)
Taiwanese0.5%(75)
Pakistani0.3%(52)
Thai0.1%(23)
Burmese0.1%(20)
Chinese0.1%(19)
Indonesian0.1%(14)
Uzbek0.1%(12)
Filipino0.1%(9)
Ancestry
German16.4%(2,583)
English14.5%(2,275)
Irish9.7%(1,517)
American5.8%(918)
Swedish3.8%(595)
Norwegian3.7%(583)
Scottish2.8%(440)
Italian2.2%(348)
Subsaharan African1.8%(287)
Dutch1.7%(264)
Arab1.6%(257)
Polish1.6%(255)
+ 30 more ancestry groups with data
French1.5%(235)
Swiss1.1%(167)
Ethiopian0.9%(141)
Egyptian0.8%(121)
British0.7%(117)
Danish0.6%(91)
Welsh0.5%(80)
Russian0.5%(78)
French Canadian0.4%(70)
Scotch-Irish0.4%(65)
Jordanian0.4%(62)
Turkish0.4%(58)
Lebanese0.3%(46)
Hungarian0.3%(43)
Ukrainian0.3%(43)
Brazilian0.3%(41)
Czech0.2%(34)
Greek0.2%(34)
Croatian0.2%(29)
Slovak0.2%(29)
Palestinian0.2%(28)
Romanian0.2%(28)
Latvian0.2%(26)
Austrian0.1%(15)
Portuguese0.1%(13)
Belgian0.1%(12)
West Indian0.1%(12)
Haitian0.1%(12)
Finnish0.1%(11)
Lithuanian0%(7)
Section 05
Education
High school or higher
95.1%
+7.0 ptssince 2000
from 88.1% in 2000
US average: 89.6%
Section 06
Commute & transportation
Section 07
Work & employment
Section 08
People & community
Marital status
Men 15+
Never married38.8%(2,687)
Married45.9%(3,183)
Widowed4%(279)
Divorced11.3%(784)
Women 15+
Never married26.8%(1,758)
Married51.2%(3,358)
Widowed5.6%(365)
Divorced16.4%(1,075)
SHARE WITHIN EACH SEX · POPULATION 15 AND OVER · 2024
Drill deeper
Places similar to Jefferson County
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Pop 15,419
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Pop 14,822
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Pop 15,943
Jefferson County
Pop 16,007
Places similar to Jefferson CountyHead to head
Compare Jefferson County to nearby counties
JEFFERSON COUNTY VS
Van Buren County
Income$61,161−1%
Home value$114,600−30%
Population7,131−53%
SEE FULL COMPARISON →
JEFFERSON COUNTY VS
Henry County
Income$67,436+9%
Home value$164,300+1%
Population19,349+27%
SEE FULL COMPARISON →
JEFFERSON COUNTY VS
Wapello County
Income$64,766+5%
Home value$125,100−23%
Population35,210+130%
SEE FULL COMPARISON →
JEFFERSON COUNTY VS
Keokuk County
Income$62,329+1%
Home value$118,700−27%
Population9,797−36%
SEE FULL COMPARISON →
Frequently asked
How many people live in Jefferson County, Iowa?
Jefferson County, Iowa has about 15,705 residents according to the 2024 American Community Survey.
What is the median household income in Jefferson County, Iowa?
The typical household in Jefferson County, Iowa earns about $61,620 a year. Half of households make more than that, and half make less.
Is Jefferson County, Iowa expensive?
In Jefferson County, Iowa, the median home is worth about $163,400, and the typical rent is about $883 a month.
How educated are people in Jefferson County, Iowa?
About 43.2% of adults age 25 and over in Jefferson County, Iowa hold a bachelor's degree or higher.
What is the poverty rate in Jefferson County, Iowa?
About 15.2% of people in Jefferson County, Iowa live below the federal poverty line.
Has Jefferson County, Iowa grown since 1990?
Yes, Jefferson County, Iowa has shrunk since 1990. The population has lost about 605 residents, a change of about -4 percent over that period.
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DATA: US CENSUS BUREAU ACS 5-YEAR + DECENNIAL CENSUS · UPDATED 2024