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Zip Code 63131 — Saint Louis, MO

63131 is a ZIP Code associated with Saint Louis, MO, located within St. Louis. The postal region supports an estimated population of 17,935 residents across Data Pending housing units, with a population density of 508.1 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (38.617200, -90.443650)

Data Metric	Local Statistic
Postal / Zip Code	63131
Primary City	Saint Louis
State / Province	MO
County	St. Louis
Total Population	17,935
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	508.1 people/sq mi
Timezone	America/Chicago

How 63131 Compares

Metric	ZIP 63131	St. Louis County	MO State Average
Population	17,935	1,308,579	6,191,989
Median Income	Data Pending	N/A	N/A
Population Density	508.1 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 63141	Saint Louis	2.9 mi	20,932	N/A
Zip 63122	Saint Louis	2.9 mi	41,634	N/A
Zip 63124	Saint Louis	3.7 mi	10,839	N/A
Zip 63144	Saint Louis	5.2 mi	9,505	N/A
Zip 63119	Saint Louis	5.4 mi	34,181	N/A

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 →