Zip Code 63128 — Saint Louis, MO

ZIP Code 63128 is associated with Saint Louis, MO, in St. Louis County. The listed population estimate is 30,540; estimated density is 756.2 people per square mile. Among records with population estimates, it ranks #16 of 61 in St. Louis County and #47 of 1,021 in MO.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (38.493690, -90.383060)

Data MetricLocal Statistic
Postal / Zip Code63128
Primary CitySaint Louis
State / ProvinceMO
CountySt. Louis
Total Population30,540
Population Density756.2 people/sq mi
TimezoneAmerica/Chicago

How 63128 Compares

MetricZIP 63128St. Louis County recordsMO records
Population estimate30,5401,308,579 (sum)6,191,989 (sum)
Population Density756.2 /sq mi----
County population rank#16 of 61----
State population rank#47 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 63127Saint Louis3.3 mi5,268
ZIP 63126Saint Louis3.9 mi15,452
ZIP 63129Saint Louis4.2 mi51,553
ZIP 63026Fenton4.2 mi45,354
ZIP 63010Arnold4.5 mi34,478

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 →