Zip Code 63109 — Saint Louis, MO

ZIP Code 63109 is associated with Saint Louis, MO, in St. Louis County. The listed population estimate is 25,236; estimated density is 2,755.4 people per square mile. Among records with population estimates, it ranks #19 of 61 in St. Louis County and #69 of 1,021 in MO.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (38.584830, -90.295630)

Data MetricLocal Statistic
Postal / Zip Code63109
Primary CitySaint Louis
State / ProvinceMO
CountySt. Louis
Total Population25,236
Population Density2,755.4 people/sq mi
TimezoneAmerica/Chicago

How 63109 Compares

MetricZIP 63109St. Louis County recordsMO records
Population estimate25,2361,308,579 (sum)6,191,989 (sum)
Population Density2,755.4 /sq mi----
County population rank#19 of 61----
State population rank#69 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 63116Saint Louis1.7 mi42,170
ZIP 63139Saint Louis1.8 mi21,631
ZIP 63143Saint Louis2.3 mi8,975
ZIP 63123Saint Louis3.0 mi49,077
ZIP 63119Saint Louis3.0 mi34,181

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 →