Washington County, IA ZIP Codes

Iowa (IA) · 8 ZIP codes · 8 cities

ZIP codes

22,491

population (2021)

+3.6%

pop change since 2010

19183

FIPS code

Washington County ZIP code map

About Washington County

Washington County is located in Iowa and contains 8 ZIP codes across 8 cities and communities. The county's population was 22,491 as of 2021, an increase of 3.6% from 21,704 in 2010. The timezone is Mountain Time (observes DST). The Federal Information Processing System (FIPS) code for Washington County is 19183.

Population
2021 population	22,491
2010 population	21,704
Change	+3.6%

County details
State	Iowa
FIPS code	19183
Timezone	Mountain
Daylight saving	Yes

Cities in Washington County

Ainsworth Brighton Crawfordsville Kalona Riverside Washington Wellman West Chester

ZIP codes for Washington County, IA (8)

ZIP code	City	County	Map
52201	Ainsworth	Washington	View map
52247	Kalona	Washington	View map
52327	Riverside	Washington	View map
52353	Washington	Washington	View map
52356	Wellman	Washington	View map
52359	West Chester	Washington	View map
52540	Brighton	Washington	View map
52621	Crawfordsville	Washington	View map

Demographics & statistics

24,479

Population

40.1

Median age

$70,776

Median household income

$34,779

Per capita income

$180,950

Median home value

$768

Median monthly rent

76.7%

Home ownership

10.1%

Poverty rate

3.6%

Unemployment

7,348

Housing units

22.7%

Bachelor's or higher

Age distribution

Male Female

794

Under 5

756

735

5–9

699

983

10–14

936

824

15–19

784

735

20–24

700

1,487

25–34

1,414

1,484

35–44

1,411

1,358

45–54

1,292

817

55–59

777

820

60–64

780

1,331

65–74

1,267

804

75–84

765

372

85+

354

← Male

Female →

Age summary

Group	Count	%
Under 18	5,947	25.4%
18 and over	18,532	74.6%
65 and over	4,893	18.7%
Median age	40.1 years

Race & ethnicity

White 87.8%

Hispanic or Latino 4.8%

Other race 3.3%

Two or more races 3.3%

Black or African American 0.4%

Asian 0.3%

Group	Count	%
White	22,591	87.8%
Hispanic or Latino	1,244	4.8%
Other race	861	3.3%
Two or more races	839	3.3%
Black or African American	91	0.4%
Asian	87	0.3%

Household income

Under $10k 3.6%

$10k–$15k 2.2%

$15k–$25k 5.4%

$25k–$35k 6.7%

$35k–$50k 12.8%

$50k–$75k 19.4%

$75k–$100k 14.6%

$100k–$150k 23.0%

$150k–$200k 4.6%

$200k+ 7.9%

Range	% of households
Under $10k	3.6%
$10k–$15k	2.2%
$15k–$25k	5.4%
$25k–$35k	6.7%
$35k–$50k	12.8%
$50k–$75k	19.4%
$75k–$100k	14.6%
$100k–$150k	23.0%
$150k–$200k	4.6%
$200k+	7.9%
Median income	$70,776

Housing

Home values

Under $50k 9.0%

$50k–$100k 16.6%

$100k–$150k 16.6%

$150k–$200k 11.3%

$200k–$300k 26.1%

$300k–$500k 12.5%

$500k–$1M 5.4%

$1M+ 2.4%

Housing overview

Metric	Value
Median home value	$180,950
Median rent / month	$768
Owner occupied	76.7%
Renter occupied	23.3%
Vacant	6.1%
Single-family detached	83.7%
Large apartment buildings	0.5%
Mobile homes	6.0%
Median rooms	6.7
Avg household size (owned)	2.75

Year built

Era	%
2020 or later	0.2%
2010–2019	4.3%
2000–2009	10.7%
1990–1999	7.9%
1980–1989	6.0%
1970–1979	11.1%
1960–1969	6.5%
1950–1959	4.5%
1940–1949	4.8%
1939 or earlier	44.1%

Bedrooms

Size	% of units
No bedroom (studio)	1.2%
1 bedroom	4.3%
2 bedrooms	22.3%
3 bedrooms	40.9%
4 bedrooms	21.3%
5+ bedrooms	9.9%

Vehicles per household

Vehicles	% of households
No vehicle	4.4%
1 vehicle	19.3%
2 vehicles	36.0%
3 or more	40.4%

Heating fuel

Fuel type	%
Utility gas	37.3%
Electricity	19.0%
Propane / LP gas	34.4%
Fuel oil	0.7%
Wood	5.3%
Solar	0.9%
No fuel used	0.2%

Households & families

Household type	Count	%
Married-couple family	5,337	58.5%
Cohabiting couple	676	6.7%
Male householder, no spouse	1,484	16.4%
Female householder, no spouse	2,021	18.4%
Households with children under 18	3,078	34.0%
Households with seniors (65+)	3,257	33.8%
Average household size	2.63

Marital status

Status	Male	Female
Never married	27.0%	20.4%
Married	58.9%	58.9%
Separated	1.7%	2.7%
Widowed	3.6%	6.8%
Divorced	8.8%	11.3%

Education

Less than 9th grade 3.2%

Some HS, no diploma 6.5%

HS graduate 34.9%

Some college, no degree 21.0%

Associate's degree 11.8%

Bachelor's degree 15.5%

Graduate / professional 7.1%

Metric	%
HS diploma or higher	90.3%
Bachelor's or higher	22.7%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	362	8.3%
Kindergarten	194	4.0%
Elementary school	2,674	49.9%
High school	1,561	26.7%
College / grad school	633	11.2%

Employment

Industry of employment

Education & healthcare 24.8%

Retail trade 13.5%

Construction 9.8%

Manufacturing 9.6%

Other services 7.7%

Agriculture & mining 6.7%

Transportation & utilities 6.3%

Finance & real estate 6.1%

Arts, food & hospitality 4.9%

Professional & management 4.7%

Public administration 2.8%

Wholesale trade 1.9%

Information 1.2%

Occupation

Category	%
Management, business & arts	34.6%
Service	16.7%
Sales & office	18.0%
Natural resources & construction	12.9%
Production & transportation	17.9%

Employment type

Type	%
Private sector	73.4%
Government	18.3%
Self-employed	8.3%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	78.2%
Carpool	9.4%
Public transit	0.4%
Walk	2.4%
Other means	2.7%
Avg commute (minutes)	26.3

Poverty

All people 10.1%

Under 18 years 13.1%

18 and over 8.7%

Married-couple families 2.3%

Female-led households 25.1%

Income support

Source	% of households
Social Security	34.0%
Retirement income	22.9%
Supplemental Security	3.8%
Cash public assistance	2.5%
Food stamps / SNAP	8.0%

Health indicators

Condition	%
High blood pressure	32.6%
High cholesterol	33.5%
Heart disease	6.6%
Stroke	3.0%
Asthma	9.1%
Arthritis	25.0%
Kidney disease	2.8%
Pulmonary disease	6.7%
Cancer	7.2%

Behavior / access	%
Binge drinking	21.2%
No physical activity	24.1%
Less than 7 hrs sleep	29.2%
Fair or poor health	12.7%
Poor mental health	13.2%
Poor physical health	9.6%
No health insurance	9.6%
Visited doctor (checkup)	74.9%
Visited dentist	67.1%
Cholesterol screening	89.1%
Teeth loss	12.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,354	7.0%

Disability	%
Any disability	11.8%
Under 18	4.9%
18–64 years	9.6%
65 and over	28.5%

Health insurance coverage

Type	%
Private insurance	66.7%
Public insurance	40.7%
Uninsured under 19	3.4%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	22,929	93.7%
Spanish	698	1.8%
Other Indo-European	503	1.3%
Asian & Pacific Islander	156	0.5%
Other languages	39	0.1%

Place of birth & citizenship

Origin	Count	%
Native born (US)	23,627	97.8%
Born in same state	23,567	97.6%
Born in different state	19,250	81.2%
Foreign born	60	0.2%
Naturalized citizen	852	2.2%
Not a US citizen	367	36.8%

Ancestry

Ancestry	Count	%
Italian	2,939	12%
French	1,917	7.8%
Arab	1,632	6.7%
English	560	2.3%
Polish	537	2.2%

Ancestry	Count	%
Dutch	93	0.4%
German	29	0.1%
Irish	16	0.1%
Norwegian	15	0.1%

Technology access

Metric	% of households
Computer access	37.9%
Internet access	91.9%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Explore more Iowa ZIP codes

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