Zip Code 63125 — Saint Louis, MO

ZIP Code 63125 is associated with Saint Louis, MO, in St. Louis County. The listed population estimate is 33,294; estimated density is 1,292.8 people per square mile. Among records with population estimates, it ranks #14 of 61 in St. Louis County and #41 of 1,021 in MO.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (38.518670, -90.292690)

Data MetricLocal Statistic
Postal / Zip Code63125
Primary CitySaint Louis
State / ProvinceMO
CountySt. Louis
Total Population33,294
Population Density1,292.8 people/sq mi
TimezoneAmerica/Chicago

How 63125 Compares

MetricZIP 63125St. Louis County recordsMO records
Population estimate33,2941,308,579 (sum)6,191,989 (sum)
Population Density1,292.8 /sq mi----
County population rank#14 of 61----
State population rank#41 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 63123Saint Louis2.8 mi49,077
ZIP 63111Saint Louis3.6 mi18,851
ZIP 63116Saint Louis4.5 mi42,170
ZIP 63109Saint Louis4.6 mi25,236
ZIP 63129Saint Louis4.6 mi51,553

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 →