Zip Code 63138 — Saint Louis, MO

ZIP Code 63138 is associated with Saint Louis, MO, in St. Louis County. The listed population estimate is 18,233; estimated density is 379.8 people per square mile. Among records with population estimates, it ranks #33 of 61 in St. Louis County and #108 of 1,021 in MO.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (38.799040, -90.182200)

Data MetricLocal Statistic
Postal / Zip Code63138
Primary CitySaint Louis
State / ProvinceMO
CountySt. Louis
Total Population18,233
Population Density379.8 people/sq mi
TimezoneAmerica/Chicago

How 63138 Compares

MetricZIP 63138St. Louis County recordsMO records
Population estimate18,2331,308,579 (sum)6,191,989 (sum)
Population Density379.8 /sq mi----
County population rank#33 of 61----
State population rank#108 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 63137Saint Louis3.8 mi19,684
ZIP 63033Florissant5.2 mi43,056
ZIP 63386West Alton5.4 mi482
ZIP 63136Saint Louis5.6 mi40,929
ZIP 63034Florissant6.6 mi18,908

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 →