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Zip Code 50128 — Jamaica, IA

50128 is a ZIP Code associated with Jamaica, IA, located within Guthrie. 50128 ranks #10 out of 10 ZIP codes in Guthrie County by population (and #779 out of 970 in IA). The area supports an estimated population of 330 residents across Data Pending housing units, with a population density of 4.5 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (41.851730, -94.298530)

Data MetricLocal Statistic
Postal / Zip Code50128
Primary CityJamaica
State / ProvinceIA
CountyGuthrie
Total Population330
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density4.5 people/sq mi
TimezoneAmerica/Chicago

How 50128 Compares

MetricZIP 50128Guthrie CountyIA State Average
Population33012,250 (Total)3,210,984 (Total)
Average ZIP IncomeData PendingN/AN/A
Population Density4.5 /sq mi----
County Pop Rank#10 of 10----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 50066Dawson4.9 mi191N/A
Zip 50277Yale5.6 mi582N/A
Zip 50235Rippey7.1 mi431N/A
Zip 50026Bagley7.8 mi481N/A
Zip 50220Perry9.1 mi9,216N/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 →