Home > FL > Calhoun County > Altha > Zip 32421

Zip Code 32421 — Altha, FL

32421 is a ZIP Code associated with Altha, FL, located within Calhoun. 32421 ranks #2 out of 4 ZIP codes in Calhoun County by population (and #834 out of 1,011 in FL). The area supports an estimated population of 4,035 residents across Data Pending housing units, with a population density of 12.4 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (30.529730, -85.193080)

Data MetricLocal Statistic
Postal / Zip Code32421
Primary CityAltha
State / ProvinceFL
CountyCalhoun
Total Population4,035
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density12.4 people/sq mi
TimezoneAmerica/Chicago

How 32421 Compares

MetricZIP 32421Calhoun CountyFL State Average
Population4,03513,205 (Total)22,412,596 (Total)
Average ZIP IncomeData PendingN/AN/A
Population Density12.4 /sq mi----
County Pop Rank#2 of 4----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 32430Clarksville7.9 mi815N/A
Zip 32448Marianna9.6 mi8,549N/A
Zip 32424Blountstown11.7 mi7,586N/A
Zip 32420Alford13.4 mi2,159N/A
Zip 32438Fountain13.4 mi4,815N/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 →