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Zip Code 64506 — Saint Joseph, MO

64506 is a ZIP Code associated with Saint Joseph, MO, located within Buchanan. 64506 ranks #1 out of 10 ZIP codes in Buchanan County by population (and #88 out of 1,035 in MO). The area supports an estimated population of 21,461 residents across Data Pending housing units, with a population density of 826.4 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (39.790480, -94.802770)

Data MetricLocal Statistic
Postal / Zip Code64506
Primary CitySaint Joseph
State / ProvinceMO
CountyBuchanan
Total Population21,461
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density826.4 people/sq mi
TimezoneAmerica/Chicago

How 64506 Compares

MetricZIP 64506Buchanan CountyMO State Average
Population21,46173,921 (Total)6,191,989 (Total)
Average ZIP IncomeData PendingN/AN/A
Population Density826.4 /sq mi----
County Pop Rank#1 of 10----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 64501Saint Joseph2.8 mi10,689N/A
Zip 64503Saint Joseph3.6 mi11,954N/A
Zip 64505Saint Joseph4.1 mi14,107N/A
Zip 64507Saint Joseph4.6 mi13,991N/A
Zip 64436Cosby7.4 mi873N/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 →