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Zip Code 63010 — Arnold, MO

63010 is a ZIP Code associated with Arnold, MO, located within Jefferson. The postal region supports an estimated population of 34,478 residents across Data Pending housing units, with a population density of 617.6 people per square mile.

WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (38.429640, -90.393200)

Data Metric	Local Statistic
Postal / Zip Code	63010
Primary City	Arnold
State / Province	MO
County	Jefferson
Total Population	34,478
Median Household Income	Data Pending
Total Housing Units	Data Pending
Population Density	617.6 people/sq mi
Timezone	America/Chicago

How 63010 Compares

Metric	ZIP 63010	Jefferson County	MO State Average
Population	34,478	199,561	6,191,989
Median Income	Data Pending	N/A	N/A
Population Density	617.6 /sq mi	--	--

Nearby ZIP Codes

ZIP Code	City	Distance	Population	Median Income
Zip 63052	Imperial	3.6 mi	28,712	N/A
Zip 63129	Saint Louis	4.3 mi	51,553	N/A
Zip 63128	Saint Louis	4.5 mi	30,540	N/A
Zip 63053	Kimmswick	4.6 mi	56	N/A
Zip 63026	Fenton	6.2 mi	45,354	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 →