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Zip Code 63012 — Barnhart, MO

63012 is a ZIP Code associated with Barnhart, MO, located within Jefferson. The postal region supports an estimated population of 10,314 residents across Data Pending housing units, with a population density of 158.4 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (38.335320, -90.448320)

Data MetricLocal Statistic
Postal / Zip Code63012
Primary CityBarnhart
State / ProvinceMO
CountyJefferson
Total Population10,314
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density158.4 people/sq mi
TimezoneAmerica/Chicago

How 63012 Compares

MetricZIP 63012Jefferson CountyMO State Average
Population10,314199,5616,191,989
Median IncomeData PendingN/AN/A
Population Density158.4 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 63070Pevely3.8 mi8,428N/A
Zip 63052Imperial3.8 mi28,712N/A
Zip 63053Kimmswick5.1 mi56N/A
Zip 63048Herculaneum6.1 mi4,228N/A
Zip 63010Arnold7.2 mi34,478N/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 →