Saint Charles County, MO ZIP Codes

Missouri (MO)  ·  17 ZIP codes  ·  13 cities
17
ZIP codes
409,981
population (2021)
+13.7%
pop change since 2010
29183
FIPS code
Saint Charles County ZIP code map
About Saint Charles County
Saint Charles County is located in Missouri and contains 17 ZIP codes across 13 cities and communities. The county's population was 409,981 as of 2021, an increase of 13.7% from 360,485 in 2010. The timezone is Mountain Time (observes DST). The Federal Information Processing System (FIPS) code for Saint Charles County is 29183.
Population
2021 population409,981
2010 population360,485
Change+13.7%
County details
StateMissouri
FIPS code29183
TimezoneMountain
Daylight savingYes
Cities in Saint Charles County
Augusta Cottleville Defiance Flinthill Foristell Lake Saint Louis New Melle O Fallon Portage Des Sioux Saint Charles Saint Peters Wentzville West Alton
ZIP codes for Saint Charles County, MO (17)
ZIP code City County Map
63301 Saint Charles Saint Charles View map
63302 Saint Charles Saint Charles View map
63303 Saint Charles Saint Charles View map
63304 Saint Charles Saint Charles View map
63332 Augusta Saint Charles View map
63338 Cottleville Saint Charles View map
63341 Defiance Saint Charles View map
63346 Flinthill Saint Charles View map
63348 Foristell Saint Charles View map
63365 New Melle Saint Charles View map
63366 O Fallon Saint Charles View map
63367 Lake Saint Louis Saint Charles View map
63368 O Fallon Saint Charles View map
63373 Portage Des Sioux Saint Charles View map
63376 Saint Peters Saint Charles View map
63385 Wentzville Saint Charles View map
63386 West Alton Saint Charles View map

Demographics & statistics

408,301
Population
39.5
Median age
$101,441
Median household income
$47,824
Per capita income
$296,008
Median home value
$1,138
Median monthly rent
84.4%
Home ownership
4.0%
Poverty rate
3.1%
Unemployment
108,435
Housing units
38.8%
Bachelor's or higher

Age distribution

Male Female
11,228
Under 5
11,375
12,939
5–9
13,108
13,590
10–14
13,768
13,265
15–19
13,439
12,182
20–24
12,341
25,244
25–34
25,574
28,094
35–44
28,461
25,840
45–54
26,179
13,906
55–59
14,089
13,895
60–64
14,076
19,340
65–74
19,594
9,901
75–84
10,031
3,399
85+
3,443
← Male
Female →

Age summary

GroupCount%
Under 1892,99622.7%
18 and over315,30577.3%
65 and over65,70816.5%
Median age39.5 years

Race & ethnicity

White 84.1%
Black or African American 4.9%
Two or more races 4.4%
Hispanic or Latino 2.9%
Asian 2.7%
Other race 1%
American Indian / Alaska Native 0.1%
GroupCount%
White353,50784.1%
Black or African American20,4674.9%
Two or more races18,5894.4%
Hispanic or Latino12,2422.9%
Asian11,1522.7%
Other race4,0561%
American Indian / Alaska Native3460.1%

Household income

Under $10k 2.3%
$10k–$15k 1.2%
$15k–$25k 3.1%
$25k–$35k 4.1%
$35k–$50k 10.9%
$50k–$75k 13.1%
$75k–$100k 13.1%
$100k–$150k 23.8%
$150k–$200k 12.9%
$200k+ 15.5%
Range% of households
Under $10k2.3%
$10k–$15k1.2%
$15k–$25k3.1%
$25k–$35k4.1%
$35k–$50k10.9%
$50k–$75k13.1%
$75k–$100k13.1%
$100k–$150k23.8%
$150k–$200k12.9%
$200k+15.5%
Median income$101,441

Housing

Home values

Under $50k 3.7%
$50k–$100k 2.9%
$100k–$150k 5.7%
$150k–$200k 11.7%
$200k–$300k 30.2%
$300k–$500k 32.5%
$500k–$1M 11.8%
$1M+ 1.5%

Housing overview

MetricValue
Median home value$296,008
Median rent / month$1,138
Owner occupied84.4%
Renter occupied15.6%
Vacant6.5%
Single-family detached83.2%
Large apartment buildings2.5%
Mobile homes2.2%
Median rooms6.5
Avg household size (owned)2.73

Year built

Era%
2020 or later1.1%
2010–201912.6%
2000–200919.7%
1990–199918.7%
1980–198914.0%
1970–197911.5%
1960–19698.5%
1950–19597.2%
1940–19491.2%
1939 or earlier5.5%

Bedrooms

Size% of units
No bedroom (studio)1.1%
1 bedroom4.1%
2 bedrooms16.1%
3 bedrooms45.5%
4 bedrooms27.3%
5+ bedrooms5.9%

Vehicles per household

Vehicles% of households
No vehicle2.6%
1 vehicle20.9%
2 vehicles43.0%
3 or more33.5%

Heating fuel

Fuel type%
Utility gas44.4%
Electricity38.2%
Propane / LP gas14.2%
Fuel oil1.4%
Wood1.1%
No fuel used0.5%

Households & families

Household typeCount%
Married-couple family91,56763.5%
Cohabiting couple9,8375.5%
Male householder, no spouse22,29514.3%
Female householder, no spouse33,49516.7%
Households with children under 1851,04033.2%
Households with seniors (65+)45,67530.3%
Average household size2.64

Marital status

StatusMaleFemale
Never married27.1%23.8%
Married61.6%58.6%
Separated0.8%0.9%
Widowed2.1%7.1%
Divorced8.4%9.6%

Education

Less than 9th grade 1.1%
Some HS, no diploma 3.0%
HS graduate 26.2%
Some college, no degree 22.0%
Associate's degree 8.7%
Bachelor's degree 24.4%
Graduate / professional 14.4%
Metric%
HS diploma or higher95.8%
Bachelor's or higher38.8%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool7,6278.3%
Kindergarten4,9354.9%
Elementary school42,10441.6%
High school22,11221.3%
College / grad school23,65924.0%

Employment

Industry of employment

Education & healthcare 22.9%
Manufacturing 11.0%
Professional & management 10.5%
Retail trade 9.7%
Construction 9.7%
Finance & real estate 8.7%
Arts, food & hospitality 7.4%
Transportation & utilities 5.4%
Other services 5.1%
Public administration 3.7%
Wholesale trade 3.2%
Information 1.5%
Agriculture & mining 1.4%

Occupation

Category%
Management, business & arts46.0%
Service12.3%
Sales & office19.9%
Natural resources & construction10.1%
Production & transportation11.7%

Employment type

Type%
Private sector84.1%
Government10.3%
Self-employed5.3%
Unpaid family workers0.3%

Commute

Method%
Drive alone78.6%
Carpool5.1%
Public transit0.0%
Walk0.6%
Other means1.8%
Avg commute (minutes)27.3

Poverty

All people 4.0%
Under 18 years 4.2%
18 and over 4.0%
Married-couple families 1.9%
Female-led households 10.9%

Income support

Source% of households
Social Security32.0%
Retirement income29.3%
Supplemental Security3.4%
Cash public assistance1.4%
Food stamps / SNAP3.0%

Health indicators

Condition%
High blood pressure27.3%
High cholesterol32.9%
Heart disease5.7%
Stroke2.5%
Asthma8.7%
Arthritis24.1%
Kidney disease2.4%
Pulmonary disease6.2%
Cancer6.4%
Behavior / access%
Binge drinking20.6%
No physical activity21.9%
Less than 7 hrs sleep32.6%
Fair or poor health12.3%
Poor mental health14.5%
Poor physical health9.5%
No health insurance12.6%
Visited doctor (checkup)73.8%
Visited dentist65.6%
Cholesterol screening89.8%
Teeth loss12.9%

Veterans & disability

VeteransCount%
Civilian veterans22,4837.5%
Disability%
Any disability11.3%
Under 184.4%
18–64 years9.5%
65 and over27.3%

Health insurance coverage

Type%
Private insurance84.1%
Public insurance23.8%
Uninsured under 192.1%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only385,69895.1%
Spanish5,9661.0%
Other Indo-European2,5630.4%
Asian & Pacific Islander1,1820.2%
Other languages2,0570.3%

Place of birth & citizenship

OriginCount%
Native born (US)392,07696.9%
Born in same state388,44796.2%
Born in different state280,25670.3%
Foreign born3,6290.7%
Naturalized citizen16,2253.1%
Not a US citizen9,30760.1%

Ancestry

AncestryCount%
Italian66,18816.2%
French46,31811.3%
Arab25,2666.2%
English4,3551.1%
Polish2,7360.7%
AncestryCount%
Irish1,3230.3%
German1,2080.3%
Dutch1,1010.3%
Norwegian8560.2%

Technology access

Metric% of households
Computer access37.7%
Internet access95.4%

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

Explore more Missouri ZIP codes
All Missouri ZIP codes Augusta ZIP codes Cottleville ZIP codes Defiance ZIP codes Flinthill ZIP codes Foristell ZIP codes Lake Saint Louis ZIP codes New Melle ZIP codes O Fallon ZIP codes Portage Des Sioux ZIP codes Saint Charles ZIP codes
Need the complete Missouri ZIP code database? Download all MO ZIP codes — Excel, CSV, or Access. Includes lat/lng, county FIPS & timezone.
Download database →