Mahaska County, IA ZIP Codes
Iowa (IA) · 9 ZIP codes · 9 cities
9
ZIP codes
21,984
population (2021)
-1.8%
pop change since 2010
19123
FIPS code
Mahaska County ZIP code map
About Mahaska County
Mahaska County is located in Iowa and contains 9 ZIP codes across 9 cities and communities.
The county's population was 21,984 as of 2021,
a decrease of
1.8% from 22,381 in 2010.
The timezone is Mountain Time (observes DST).
The Federal Information Processing System (FIPS) code for Mahaska County is 19123.
| Population | |
|---|---|
| 2021 population | 21,984 |
| 2010 population | 22,381 |
| Change | -1.8% |
| County details | |
|---|---|
| State | Iowa |
| FIPS code | 19123 |
| Timezone | Mountain |
| Daylight saving | Yes |
Cities in Mahaska County
ZIP codes for Mahaska County, IA (9)
| ZIP code | City | County | Map |
|---|---|---|---|
| 50027 | Barnes City | Mahaska | View map |
| 50143 | Leighton | Mahaska | View map |
| 50207 | New Sharon | Mahaska | View map |
| 52534 | Beacon | Mahaska | View map |
| 52543 | Cedar | Mahaska | View map |
| 52561 | Fremont | Mahaska | View map |
| 52577 | Oskaloosa | Mahaska | View map |
| 52586 | Rose Hill | Mahaska | View map |
| 52595 | University Park | Mahaska | View map |
Demographics & statistics
20,097
Population
39.3
Median age
$64,209
Median household income
$33,981
Per capita income
$121,475
Median home value
$506
Median monthly rent
73.6%
Home ownership
10.1%
Poverty rate
2.1%
Unemployment
6,188
Housing units
18.3%
Bachelor's or higher
Age distribution
Male
Female
675
Under 5
618
651
5–9
596
741
10–14
678
718
15–19
657
737
20–24
674
1,218
25–34
1,114
1,240
35–44
1,134
1,137
45–54
1,039
698
55–59
639
732
60–64
670
1,093
65–74
999
593
75–84
543
263
85+
240
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 4,695 | 23.0% |
| 18 and over | 15,402 | 77.0% |
| 65 and over | 3,731 | 14.8% |
| Median age | 39.3 years | |
Race & ethnicity
White
92.6%
Two or more races
2.9%
Black or African American
1.6%
Asian
1.1%
Hispanic or Latino
1.1%
Other race
0.5%
American Indian / Alaska Native
0.1%
| Group | Count | % |
|---|---|---|
| White | 18,820 | 92.6% |
| Two or more races | 593 | 2.9% |
| Black or African American | 331 | 1.6% |
| Asian | 231 | 1.1% |
| Hispanic or Latino | 221 | 1.1% |
| Other race | 98 | 0.5% |
| American Indian / Alaska Native | 23 | 0.1% |
Household income
Under $10k
2.4%
$10k–$15k
4.0%
$15k–$25k
7.8%
$25k–$35k
6.4%
$35k–$50k
13.6%
$50k–$75k
27.5%
$75k–$100k
10.2%
$100k–$150k
19.7%
$150k–$200k
5.3%
$200k+
3.0%
| Range | % of households |
|---|---|
| Under $10k | 2.4% |
| $10k–$15k | 4.0% |
| $15k–$25k | 7.8% |
| $25k–$35k | 6.4% |
| $35k–$50k | 13.6% |
| $50k–$75k | 27.5% |
| $75k–$100k | 10.2% |
| $100k–$150k | 19.7% |
| $150k–$200k | 5.3% |
| $200k+ | 3.0% |
| Median income | $64,209 |
Housing
Home values
Under $50k
12.8%
$50k–$100k
29.9%
$100k–$150k
20.5%
$150k–$200k
11.6%
$200k–$300k
14.2%
$300k–$500k
9.8%
$500k–$1M
1.2%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $121,475 |
| Median rent / month | $506 |
| Owner occupied | 73.6% |
| Renter occupied | 26.4% |
| Vacant | 6.0% |
| Single-family detached | 85.4% |
| Large apartment buildings | 0.6% |
| Mobile homes | 8.5% |
| Median rooms | 6.4 |
| Avg household size (owned) | 2.51 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.1% |
| 2010–2019 | 7.1% |
| 2000–2009 | 5.1% |
| 1990–1999 | 7.9% |
| 1980–1989 | 6.4% |
| 1970–1979 | 14.6% |
| 1960–1969 | 8.2% |
| 1950–1959 | 10.6% |
| 1940–1949 | 5.1% |
| 1939 or earlier | 35.2% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.4% |
| 1 bedroom | 4.8% |
| 2 bedrooms | 29.6% |
| 3 bedrooms | 37.9% |
| 4 bedrooms | 22.2% |
| 5+ bedrooms | 5.2% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 4.0% |
| 1 vehicle | 20.2% |
| 2 vehicles | 32.1% |
| 3 or more | 43.8% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 47.5% |
| Electricity | 19.4% |
| Propane / LP gas | 27.8% |
| Fuel oil | 0.1% |
| Wood | 5.0% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 4,027 | 54.8% |
| Cohabiting couple | 708 | 8.6% |
| Male householder, no spouse | 1,491 | 17.4% |
| Female householder, no spouse | 1,874 | 19.3% |
| Households with children under 18 | 2,449 | 35.5% |
| Households with seniors (65+) | 2,460 | 24.5% |
| Average household size | 2.46 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 25.9% | 21.2% |
| Married | 56.0% | 57.0% |
| Separated | 1.4% | 0.9% |
| Widowed | 1.7% | 8.1% |
| Divorced | 15.0% | 12.8% |
Education
Less than 9th grade
2.2%
Some HS, no diploma
5.2%
HS graduate
40.0%
Some college, no degree
18.2%
Associate's degree
16.1%
Bachelor's degree
14.8%
Graduate / professional
3.5%
| Metric | % |
|---|---|
| HS diploma or higher | 92.6% |
| Bachelor's or higher | 18.3% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 429 | 5.1% |
| Kindergarten | 153 | 4.8% |
| Elementary school | 2,125 | 47.3% |
| High school | 992 | 30.4% |
| College / grad school | 1,046 | 12.5% |
Employment
Industry of employment
Manufacturing
24.1%
Education & healthcare
17.2%
Agriculture & mining
13.1%
Construction
10.2%
Retail trade
9.7%
Arts, food & hospitality
5.2%
Transportation & utilities
5.0%
Other services
4.4%
Finance & real estate
4.0%
Professional & management
3.4%
Public administration
1.9%
Wholesale trade
1.0%
Information
0.6%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 32.4% |
| Service | 14.3% |
| Sales & office | 14.4% |
| Natural resources & construction | 17.1% |
| Production & transportation | 21.8% |
Employment type
| Type | % |
|---|---|
| Private sector | 78.4% |
| Government | 8.4% |
| Self-employed | 13.3% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 79.1% |
| Carpool | 10.2% |
| Public transit | 0.0% |
| Walk | 4.2% |
| Other means | 0.5% |
| Avg commute (minutes) | 26.7 |
Poverty
All people
10.1%
Under 18 years
12.2%
18 and over
9.6%
Married-couple families
2.5%
Female-led households
21.1%
Income support
| Source | % of households |
|---|---|
| Social Security | 29.3% |
| Retirement income | 12.8% |
| Supplemental Security | 3.1% |
| Cash public assistance | 1.9% |
| Food stamps / SNAP | 11.1% |
Health indicators
| Condition | % |
|---|---|
| High blood pressure | 33.5% |
| High cholesterol | 33.2% |
| Heart disease | 6.8% |
| Stroke | 3.1% |
| Asthma | 9.3% |
| Arthritis | 24.5% |
| Kidney disease | 2.9% |
| Pulmonary disease | 7.0% |
| Cancer | 7.0% |
| Behavior / access | % |
|---|---|
| Binge drinking | 21.0% |
| No physical activity | 25.0% |
| Less than 7 hrs sleep | 31.7% |
| Fair or poor health | 13.1% |
| Poor mental health | 13.6% |
| Poor physical health | 9.8% |
| No health insurance | 9.6% |
| Visited doctor (checkup) | 74.4% |
| Visited dentist | 66.6% |
| Cholesterol screening | 87.8% |
| Teeth loss | 13.7% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 886 | 6.3% |
| Disability | % |
|---|---|
| Any disability | 11.0% |
| Under 18 | 5.2% |
| 18–64 years | 8.2% |
| 65 and over | 28.3% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 68.8% |
| Public insurance | 37.6% |
| Uninsured under 19 | 1.7% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 18,804 | 93.5% |
| Spanish | 199 | 0.7% |
| Other Indo-European | 45 | 0.3% |
| Asian & Pacific Islander | 11 | 0.0% |
| Other languages | 142 | 0.4% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 19,730 | 98.6% |
| Born in same state | 19,570 | 98.3% |
| Born in different state | 15,743 | 84.3% |
| Foreign born | 160 | 0.3% |
| Naturalized citizen | 367 | 1.4% |
| Not a US citizen | 196 | 32.6% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| French | 2,803 | 13.9% |
| English | 2,483 | 12.4% |
| Italian | 2,310 | 11.5% |
| Arab | 1,466 | 7.3% |
| Ancestry | Count | % |
|---|---|---|
| Polish | 471 | 2.3% |
| Irish | 84 | 0.4% |
| Dutch | 81 | 0.4% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 41.4% |
| Internet access | 92.0% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
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