Zip Code 63103 — Saint Louis, MO

ZIP Code 63103 is associated with Saint Louis, MO, in St. Louis County. The listed population estimate is 8,778; estimated density is 1,542.6 people per square mile. Among records with population estimates, it ranks #50 of 61 in St. Louis County and #208 of 1,021 in MO.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (38.629860, -90.217000)

Data MetricLocal Statistic
Postal / Zip Code63103
Primary CitySaint Louis
State / ProvinceMO
CountySt. Louis
Total Population8,778
Population Density1,542.6 people/sq mi
TimezoneAmerica/Chicago

How 63103 Compares

MetricZIP 63103St. Louis County recordsMO records
Population estimate8,7781,308,579 (sum)6,191,989 (sum)
Population Density1,542.6 /sq mi----
County population rank#50 of 61----
State population rank#208 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 63155Saint Louis0.6 miN/A
ZIP 63106Saint Louis1.1 mi6,751
ZIP 63101Saint Louis1.3 mi3,130
ZIP 63104Saint Louis1.3 mi19,007
ZIP 63102Saint Louis1.7 mi2,882

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 →