West Alton ZIP Code List — Saint Charles County, MO

There is one unique ZIP code in West Alton, Missouri and it is 63386. Area code: 636.
1
ZIP codes
33.21
sq mi land
8.71
sq mi water
636
area code
West Alton, MO ZIP code map

About West Alton, MO

West Alton, Missouri, is a small city located in the picturesque Saint Charles County. Nestled along the banks of the Mississippi River, this quaint community offers a serene atmosphere for residents and visitors alike. Known for its natural beauty and outdoor activities, West Alton is a hidden gem within the state of Missouri.

Location & geography

West Alton is situated approximately 40 miles northwest of downtown St. Louis, making it an accessible retreat from the bustling city. Neighboring cities include Alton, Illinois, about 5 miles to the east and Saint Charles, Missouri, around 10 miles to the south. The city spans a total area of 33.21 square miles, with 8.71 square miles dedicated to water, providing ample opportunities for recreational water activities.

Community & economy

The character of West Alton reflects a close-knit community where residents enjoy a slower pace of life. Predominantly residential, the city features local businesses that cater to essential needs and a few service industries. Daily life often revolves around outdoor pursuits, such as fishing and hiking, due to the abundant natural landscapes.

Transportation

West Alton is conveniently accessed via major highways, including Route 367 and Interstate 270, enhancing connectivity to surrounding areas. The nearest named airport is the St. Louis Lambert International Airport, located roughly 25 miles to the south. Public transit options may be limited, but private vehicles are the primary mode of transportation.

History

West Alton was founded in the early 20th century as a small riverside community, primarily serving as a hub for river transport and trade. Over the years, the city has held onto its small-town charm while adapting to the needs of its residents. Notable events in its history include local celebrations that draw visitors to enjoy the natural beauty and recreational offerings.

Did you know?

One surprising fact about West Alton is that it is located at the confluence of the Missouri and Mississippi Rivers, making it a significant point for water navigation. Additionally, the city is often overlooked by tourists seeking natural escapes, despite its abundant recreational opportunities.

ZIP codes for West Alton, MO (1)
ZIP code City County Map
63386 West Alton Saint Charles View map

Demographics & statistics

522
Population
36.5
Median age
$99,773
Median household income
$34,336
Per capita income
$169,400
Median home value
$900
Median monthly rent
86.4%
Home ownership
1.5%
Poverty rate
4.1%
Unemployment
204
Housing units
22.6%
Bachelor's or higher

Age distribution

Male Female
7
Under 5
8
45
5–9
47
7
10–14
8
6
15–19
6
10
20–24
11
42
25–34
44
49
35–44
53
32
45–54
34
8
55–59
8
21
60–64
23
22
65–74
24
3
75–84
4
← Male
Female →

Age summary

GroupCount%
Under 1813024.9%
18 and over39275.1%
65 and over5310.2%
Median age36.5 years

Race & ethnicity

White 97.7%
Black or African American 1.3%
Two or more races 1%
GroupCount%
White51097.7%
Black or African American71.3%
Two or more races51%

Household income

Under $10k 2.3%
$15k–$25k 2.3%
$25k–$35k 1.7%
$35k–$50k 27.3%
$50k–$75k 9.1%
$75k–$100k 8.0%
$100k–$150k 34.7%
$150k–$200k 7.4%
$200k+ 7.4%
Range% of households
Under $10k2.3%
$15k–$25k2.3%
$25k–$35k1.7%
$35k–$50k27.3%
$50k–$75k9.1%
$75k–$100k8.0%
$100k–$150k34.7%
$150k–$200k7.4%
$200k+7.4%
Median income$99,773

Housing

Home values

Under $50k 17.1%
$50k–$100k 13.8%
$100k–$150k 9.9%
$150k–$200k 15.1%
$200k–$300k 36.2%
$300k–$500k 5.3%
$500k–$1M 2.6%

Housing overview

MetricValue
Median home value$169,400
Median rent / month$900
Owner occupied86.4%
Renter occupied13.6%
Vacant22.8%
Single-family detached96.1%
Large apartment buildings0.0%
Mobile homes3.1%
Median rooms6.0
Avg household size (owned)3.12

Year built

Era%
2020 or later0.0%
2010–20191.8%
2000–20090.0%
1990–19996.1%
1980–19897.5%
1970–197915.4%
1960–196922.4%
1950–195932.0%
1940–19493.5%
1939 or earlier11.4%

Bedrooms

Size% of units
No bedroom (studio)0.9%
1 bedroom4.8%
2 bedrooms20.2%
3 bedrooms48.2%
4 bedrooms22.8%
5+ bedrooms3.1%

Vehicles per household

Vehicles% of households
No vehicle3.4%
1 vehicle17.6%
2 vehicles32.4%
3 or more46.6%

Heating fuel

Fuel type%
Utility gas4.5%
Electricity62.5%
Propane / LP gas26.1%
Fuel oil5.1%
Wood1.7%

Households & families

Household typeCount%
Married-couple family11163.1%
Cohabiting couple84.5%
Male householder, no spouse4022.7%
Female householder, no spouse179.7%
Households with children under 186436.4%
Households with seniors (65+)4626.1%
Average household size2.97

Marital status

StatusMaleFemale
Never married21.4%24.5%
Married61.7%54.4%
Separated1.0%2.9%
Widowed2.6%8.8%
Divorced13.3%9.3%

Education

Less than 9th grade 0.5%
Some HS, no diploma 4.9%
HS graduate 38.1%
Some college, no degree 27.8%
Associate's degree 6.0%
Bachelor's degree 20.2%
Graduate / professional 2.5%
Metric%
HS diploma or higher94.6%
Bachelor's or higher22.6%

School enrollment (ages 3–17)

TypeCount%
Nursery / preschool1812.7%
Kindergarten2416.9%
Elementary school6847.9%
High school85.6%
College / grad school2416.9%

Employment

Industry of employment

Education & healthcare 37.5%
Construction 17.5%
Transportation & utilities 10.4%
Arts, food & hospitality 7.5%
Retail trade 5.4%
Other services 5.0%
Public administration 4.6%
Manufacturing 3.6%
Agriculture & mining 2.9%
Professional & management 2.1%
Information 1.8%
Finance & real estate 1.1%
Wholesale trade 0.7%

Occupation

Category%
Management, business & arts35.4%
Service13.2%
Sales & office13.2%
Natural resources & construction23.2%
Production & transportation15.0%

Employment type

Type%
Private sector86.1%
Government7.1%
Self-employed6.8%
Unpaid family workers0.0%

Commute

Method%
Drive alone88.0%
Carpool1.1%
Public transit0.0%
Walk0.0%
Other means0.0%
Avg commute (minutes)28.2

Poverty

All people 1.5%
Under 18 years 0.0%
18 and over 2.0%
Married-couple families 0.0%
Female-led households 13.3%

Income support

Source% of households
Social Security34.1%
Retirement income22.2%
Supplemental Security5.7%
Cash public assistance1.1%
Food stamps / SNAP2.3%

Health indicators

Condition%
High blood pressure30.3%
High cholesterol34.8%
Heart disease7.0%
Stroke3.1%
Asthma9.1%
Arthritis26.7%
Kidney disease2.8%
Pulmonary disease8.2%
Cancer6.5%
Behavior / access%
Binge drinking20.4%
No physical activity26.7%
Less than 7 hrs sleep34.2%
Fair or poor health15.8%
Poor mental health15.9%
Poor physical health11.7%
No health insurance15.5%
Visited doctor (checkup)73.3%
Visited dentist58.7%
Cholesterol screening87.7%
Teeth loss18.1%

Veterans & disability

VeteransCount%
Civilian veterans317.9%
Disability%
Any disability10.2%
Under 180.0%
18–64 years13.3%
65 and over15.1%

Health insurance coverage

Type%
Private insurance86.0%
Public insurance21.3%
Uninsured under 191.5%

Language & origin

Language spoken at home (age 5+)

LanguageCount%
English only50797.1%
Spanish00.0%
Other Indo-European00.0%
Asian & Pacific Islander00.0%
Other languages00.0%

Place of birth & citizenship

OriginCount%
Native born (US)522100.0%
Born in same state522100.0%
Born in different state42280.8%
Foreign born00.0%
Naturalized citizen00.0%
Not a US citizen00.0%

Ancestry

AncestryCount%
Italian10419.9%
French254.8%
AncestryCount%
Arab244.6%

Technology access

Metric% of households
Computer access33.7%
Internet access92.6%

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

Frequently asked questions
What is the ZIP code for West Alton, MO?
West Alton, MO has one ZIP code: 63386.
What is the main ZIP code for West Alton, MO?
The primary ZIP code for West Alton, MO is 63386. The city uses area code 636 for phone service.
What county is West Alton, MO in?
West Alton is located in Saint Charles County, Missouri.
How many ZIP codes are in West Alton, MO?
West Alton, MO has 1 ZIP code.
What is the ZIP code for the downtown West Alton area along the Missouri River?
The West Alton downtown and riverfront area uses ZIP code 63386, which covers the entire city's commercial and residential districts.
If I'm mailing a package to a business in West Alton, Saint Charles County, what ZIP code should I use?
You should use ZIP code 63386 for all addresses in West Alton, as it is the single ZIP code serving the entire municipality.
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