Washington County, MO ZIP Codes
Missouri (MO) · 8 ZIP codes · 8 cities
8
ZIP codes
23,502
population (2021)
-6.7%
pop change since 2010
29221
FIPS code
Washington County ZIP code map
About Washington County
Washington County is located in Missouri and contains 8 ZIP codes across 8 cities and communities.
The county's population was 23,502 as of 2021,
a decrease of
6.7% from 25,195 in 2010.
The timezone is Mountain Time (observes DST).
The Federal Information Processing System (FIPS) code for Washington County is 29221.
| Population | |
|---|---|
| 2021 population | 23,502 |
| 2010 population | 25,195 |
| Change | -6.7% |
| County details | |
|---|---|
| State | Missouri |
| FIPS code | 29221 |
| Timezone | Mountain |
| Daylight saving | Yes |
Cities in Washington County
ZIP codes for Washington County, MO (8)
| ZIP code | City | County | Map |
|---|---|---|---|
| 63071 | Richwoods | Washington | View map |
| 63622 | Belgrade | Washington | View map |
| 63630 | Cadet | Washington | View map |
| 63631 | Caledonia | Washington | View map |
| 63648 | Irondale | Washington | View map |
| 63660 | Mineral Point | Washington | View map |
| 63664 | Potosi | Washington | View map |
| 63674 | Tiff | Washington | View map |
Demographics & statistics
20,281
Population
39.5
Median age
$51,844
Median household income
$24,969
Per capita income
$120,063
Median home value
$550
Median monthly rent
77.2%
Home ownership
18.6%
Poverty rate
4.6%
Unemployment
7,191
Housing units
11.4%
Bachelor's or higher
Age distribution
Male
Female
577
Under 5
503
959
5–9
836
554
10–14
484
627
15–19
547
627
20–24
547
1,371
25–34
1,197
1,289
35–44
1,124
1,479
45–54
1,290
722
55–59
630
803
60–64
700
1,123
65–74
980
492
75–84
430
208
85+
182
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 4,681 | 21.7% |
| 18 and over | 15,600 | 78.3% |
| 65 and over | 3,415 | 16.1% |
| Median age | 39.5 years | |
Race & ethnicity
White
91%
Two or more races
4.4%
Hispanic or Latino
2%
Black or African American
1.9%
Other race
0.5%
Native Hawaiian / Pacific Islander
0.2%
Asian
0.1%
| Group | Count | % |
|---|---|---|
| White | 18,826 | 91% |
| Two or more races | 914 | 4.4% |
| Hispanic or Latino | 405 | 2% |
| Black or African American | 393 | 1.9% |
| Other race | 102 | 0.5% |
| Native Hawaiian / Pacific Islander | 35 | 0.2% |
| Asian | 11 | 0.1% |
Household income
Under $10k
5.8%
$10k–$15k
3.8%
$15k–$25k
6.7%
$25k–$35k
14.4%
$35k–$50k
15.9%
$50k–$75k
22.9%
$75k–$100k
15.1%
$100k–$150k
7.9%
$150k–$200k
3.9%
$200k+
3.7%
| Range | % of households |
|---|---|
| Under $10k | 5.8% |
| $10k–$15k | 3.8% |
| $15k–$25k | 6.7% |
| $25k–$35k | 14.4% |
| $35k–$50k | 15.9% |
| $50k–$75k | 22.9% |
| $75k–$100k | 15.1% |
| $100k–$150k | 7.9% |
| $150k–$200k | 3.9% |
| $200k+ | 3.7% |
| Median income | $51,844 |
Housing
Home values
Under $50k
22.3%
$50k–$100k
16.7%
$100k–$150k
21.0%
$150k–$200k
16.6%
$200k–$300k
10.7%
$300k–$500k
9.4%
$500k–$1M
3.0%
$1M+
0.3%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $120,063 |
| Median rent / month | $550 |
| Owner occupied | 77.2% |
| Renter occupied | 22.8% |
| Vacant | 16.1% |
| Single-family detached | 67.6% |
| Large apartment buildings | 0.0% |
| Mobile homes | 30.1% |
| Median rooms | 5.4 |
| Avg household size (owned) | 2.52 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.6% |
| 2010–2019 | 4.0% |
| 2000–2009 | 15.5% |
| 1990–1999 | 18.8% |
| 1980–1989 | 13.4% |
| 1970–1979 | 14.4% |
| 1960–1969 | 9.0% |
| 1950–1959 | 8.0% |
| 1940–1949 | 6.0% |
| 1939 or earlier | 10.6% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.9% |
| 1 bedroom | 4.7% |
| 2 bedrooms | 29.9% |
| 3 bedrooms | 50.9% |
| 4 bedrooms | 9.9% |
| 5+ bedrooms | 3.8% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 10.7% |
| 1 vehicle | 18.8% |
| 2 vehicles | 34.3% |
| 3 or more | 36.2% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 4.2% |
| Electricity | 65.5% |
| Propane / LP gas | 15.4% |
| Wood | 14.5% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 3,880 | 51.2% |
| Cohabiting couple | 523 | 5.4% |
| Male householder, no spouse | 1,520 | 20.6% |
| Female householder, no spouse | 1,657 | 22.8% |
| Households with children under 18 | 2,336 | 34.1% |
| Households with seniors (65+) | 2,552 | 30.9% |
| Average household size | 2.56 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 27.0% | 27.5% |
| Married | 49.2% | 51.8% |
| Separated | 1.3% | 2.1% |
| Widowed | 3.4% | 9.2% |
| Divorced | 19.2% | 9.5% |
Education
Less than 9th grade
5.5%
Some HS, no diploma
15.4%
HS graduate
41.5%
Some college, no degree
18.4%
Associate's degree
7.8%
Bachelor's degree
7.3%
Graduate / professional
4.1%
| Metric | % |
|---|---|
| HS diploma or higher | 79.1% |
| Bachelor's or higher | 11.4% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 337 | 7.9% |
| Kindergarten | 302 | 5.2% |
| Elementary school | 2,205 | 51.3% |
| High school | 1,041 | 20.4% |
| College / grad school | 606 | 15.2% |
Employment
Industry of employment
Manufacturing
19.2%
Education & healthcare
18.8%
Construction
11.5%
Retail trade
10.6%
Finance & real estate
8.0%
Professional & management
6.5%
Transportation & utilities
5.6%
Agriculture & mining
5.4%
Public administration
4.9%
Arts, food & hospitality
4.5%
Other services
2.9%
Wholesale trade
1.2%
Information
0.9%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 25.2% |
| Service | 16.5% |
| Sales & office | 20.9% |
| Natural resources & construction | 13.5% |
| Production & transportation | 23.8% |
Employment type
| Type | % |
|---|---|
| Private sector | 78.6% |
| Government | 17.3% |
| Self-employed | 3.8% |
| Unpaid family workers | 0.3% |
Commute
| Method | % |
|---|---|
| Drive alone | 80.0% |
| Carpool | 12.1% |
| Public transit | 0.3% |
| Walk | 0.5% |
| Other means | 2.8% |
| Avg commute (minutes) | 38.9 |
Poverty
All people
18.6%
Under 18 years
21.3%
18 and over
17.5%
Married-couple families
12.0%
Female-led households
32.3%
Income support
| Source | % of households |
|---|---|
| Social Security | 35.2% |
| Retirement income | 24.5% |
| Supplemental Security | 10.8% |
| Cash public assistance | 2.3% |
| Food stamps / SNAP | 24.3% |
Health indicators
| Condition | % |
|---|---|
| High blood pressure | 35.2% |
| High cholesterol | 34.8% |
| Heart disease | 7.9% |
| Stroke | 3.7% |
| Asthma | 10.5% |
| Arthritis | 29.4% |
| Kidney disease | 3.2% |
| Pulmonary disease | 10.6% |
| Cancer | 6.3% |
| Behavior / access | % |
|---|---|
| Binge drinking | 17.2% |
| No physical activity | 30.1% |
| Less than 7 hrs sleep | 35.6% |
| Fair or poor health | 20.6% |
| Poor mental health | 17.8% |
| Poor physical health | 14.3% |
| No health insurance | 19.1% |
| Visited doctor (checkup) | 72.3% |
| Visited dentist | 51.3% |
| Cholesterol screening | 85.7% |
| Teeth loss | 24.5% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 1,360 | 8.2% |
| Disability | % |
|---|---|
| Any disability | 23.3% |
| Under 18 | 8.9% |
| 18–64 years | 23.1% |
| 65 and over | 45.9% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 57.9% |
| Public insurance | 42.9% |
| Uninsured under 19 | 1.5% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 19,201 | 95.2% |
| Spanish | 65 | 0.2% |
| Other Indo-European | 39 | 0.2% |
| Asian & Pacific Islander | 26 | 0.1% |
| Other languages | 0 | 0.0% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 20,134 | 99.3% |
| Born in same state | 20,109 | 99.1% |
| Born in different state | 16,727 | 82.9% |
| Foreign born | 25 | 0.1% |
| Naturalized citizen | 147 | 0.7% |
| Not a US citizen | 33 | 27.8% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| Italian | 2,722 | 13.4% |
| Arab | 2,549 | 12.6% |
| French | 1,419 | 7% |
| English | 133 | 0.7% |
| Ancestry | Count | % |
|---|---|---|
| Dutch | 88 | 0.4% |
| Polish | 71 | 0.4% |
| German | 68 | 0.3% |
| Irish | 21 | 0.1% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 40.0% |
| Internet access | 86.7% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
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