Zip Code 63120 — Saint Louis, MO

ZIP Code 63120 is associated with Saint Louis, MO, in St. Louis County. The listed population estimate is 6,790; estimated density is 1,099.3 people per square mile. Among records with population estimates, it ranks #55 of 61 in St. Louis County and #244 of 1,021 in MO.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (38.690610, -90.262110)

Data MetricLocal Statistic
Postal / Zip Code63120
Primary CitySaint Louis
State / ProvinceMO
CountySt. Louis
Total Population6,790
Population Density1,099.3 people/sq mi
TimezoneAmerica/Chicago

How 63120 Compares

MetricZIP 63120St. Louis County recordsMO records
Population estimate6,7901,308,579 (sum)6,191,989 (sum)
Population Density1,099.3 /sq mi----
County population rank#55 of 61----
State population rank#244 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 63115Saint Louis1.3 mi14,488
ZIP 63121Saint Louis2.4 mi25,008
ZIP 63113Saint Louis2.4 mi10,221
ZIP 63112Saint Louis2.4 mi17,985
ZIP 63133Saint Louis2.5 mi6,569

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 →