Zip Code 63386 — West Alton, MO

ZIP Code 63386 is associated with West Alton, MO, in St. Charles County. The listed population estimate is 482; estimated density is 5.6 people per square mile. Among records with population estimates, it ranks #13 of 14 in St. Charles County and #784 of 1,021 in MO.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (38.871040, -90.220090)

Data MetricLocal Statistic
Postal / Zip Code63386
Primary CityWest Alton
State / ProvinceMO
CountySt. Charles
Total Population482
Population Density5.6 people/sq mi
TimezoneAmerica/Chicago

How 63386 Compares

MetricZIP 63386St. Charles County recordsMO records
Population estimate482416,486 (sum)6,191,989 (sum)
Population Density5.6 /sq mi----
County population rank#13 of 14----
State population rank#784 of 1,021----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in MO

ZIP CodeCityDistancePopulation estimate
ZIP 63034Florissant3.9 mi18,908
ZIP 63138Saint Louis5.4 mi18,233
ZIP 63033Florissant6.1 mi43,056
ZIP 63031Florissant8.1 mi50,196
ZIP 63137Saint Louis8.4 mi19,684

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →