Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — CITY/MO/WEST-ALTON

West Alton ZIP code, Missouri

The ZIP code for West Alton, MO is 63386, and its area codes are 314 and 557.

USPS city name
1 ZIP code
Population
467
Area codes
314, 557

NANPA lists no telephone rate centre for West Alton itself, so these are the area codes of the nearest one, Saint Louis (5.0 miles). A town on an area-code boundary can differ from its neighbour.

West Alton in numbers

About 467 people live in West Alton, in 154 households. The median household income is $111,500 a year, 58% above the Missouri median of $70,702 (US: $80,734). The median owner-occupied home is valued at $153,100 (34% below the Missouri median), and median gross rent is $1,375 a month. The median age is 36.5; 22.5% of adults 25 and over hold a bachelor's degree or higher (32.4% across Missouri); the average commute takes 29 minutes.

Population467West Alton467
Households154West Alton154
Median age36.5West Alton36.5Missouri39.0US 38.9
Median household income$111,500West Alton$111,500Missouri$70,702US $80,734
Median home value$153,100West Alton$153,100Missouri$230,300US $332,700
Median gross rent$1,375West Alton$1,375Missouri$1,033US $1,413
Bachelor's degree or higher22.5%West Alton22.5%Missouri32.4%US 35.7%
Mean commute29.0 minWest Alton29.0 minMissouri23.5 minUS 26.4 min
Population density16 / sq miWest Alton16 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, for the census place West Alton city. Survey estimates carry margins of error, wider for small places. Sources and methods.

ZIP codes addressed as West Alton

ZIP codes with the USPS city name West Alton
ZIP City Type Population Median income Median home
63386 West Alton , MO Standard 482 $110,250 $157,000

Map of West Alton ZIP codes

63386

The ZIP codes of West Alton, MO, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Towns near West Alton

The nearest larger towns are Alton, IL (25,279 people, 4.0 mi), Old Jamestown (20,651 people, 4.8 mi) and Spanish Lake (17,873 people, 5.1 mi).

Towns near West Alton
TownPopulationDistance
Alton, IL 25,279 4.0 mi
Old Jamestown 20,651 4.8 mi
Spanish Lake 17,873 5.1 mi
East Alton, IL 5,689 5.4 mi
Black Jack 6,589 5.5 mi
Godfrey, IL 17,712 6.3 mi
Wood River, IL 10,279 6.8 mi
Rosewood Heights, IL 4,229 7.2 mi
Glasgow Village 5,504 7.3 mi
Bellefontaine Neighbors 10,498 7.7 mi
Florissant 51,773 7.9 mi
Riverview 2,731 8.2 mi
Dellwood 4,847 8.3 mi
Moline Acres 2,843 8.4 mi

More nearby: every ZIP code in St. Charles County · Missouri ZIP codes

Cite this page

zipcodes.pro. “West Alton, MO ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/mo/west-alton

Underlying data is public domain or openly licensed — sources, vintages and licences.