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Zip Code 64644 — Hamilton, MO

64644 is a ZIP Code associated with Hamilton, MO, located within Caldwell. 64644 ranks #1 out of 7 ZIP codes in Caldwell County by population (and #385 out of 1,035 in MO). The area supports an estimated population of 2,923 residents across Data Pending housing units, with a population density of 10.5 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (39.741800, -93.973840)

Data MetricLocal Statistic
Postal / Zip Code64644
Primary CityHamilton
State / ProvinceMO
CountyCaldwell
Total Population2,923
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density10.5 people/sq mi
TimezoneAmerica/Chicago

How 64644 Compares

MetricZIP 64644Caldwell CountyMO State Average
Population2,9239,107 (Total)6,191,989 (Total)
Average ZIP IncomeData PendingN/AN/A
Population Density10.5 /sq mi----
County Pop Rank#1 of 7----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 64649Kidder6.7 mi814N/A
Zip 64650Kingston8.4 mi665N/A
Zip 64625Breckenridge9.0 mi738N/A
Zip 64640Gallatin11.2 mi3,125N/A
Zip 64637Cowgill12.0 mi492N/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 →