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Zip Code 42157 — Mount Hermon, KY

42157 is a ZIP Code associated with Mount Hermon, KY, located within Monroe. The postal region supports an estimated population of 507 residents across Data Pending housing units, with a population density of 10.6 people per square mile.
WorldPlaceData database updated: October 2026

📍 View location on OpenStreetMap (36.788720, -85.818700)

Data MetricLocal Statistic
Postal / Zip Code42157
Primary CityMount Hermon
State / ProvinceKY
CountyMonroe
Total Population507
Median Household IncomeData Pending
Total Housing UnitsData Pending
Population Density10.6 people/sq mi
TimezoneAmerica/Chicago

How 42157 Compares

MetricZIP 42157Monroe CountyKY State Average
Population50711,7034,542,460
Median IncomeData PendingN/AN/A
Population Density10.6 /sq mi----

Nearby ZIP Codes

ZIP CodeCityDistancePopulationMedian Income
Zip 42131Etoile5.7 mi72N/A
Zip 42166Summer Shade8.4 mi2,691N/A
Zip 42133Fountain Run8.8 mi1,456N/A
Zip 42140Gamaliel9.2 mi1,367N/A
Zip 42167Tompkinsville9.4 mi8,172N/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 →