Home > KY > Monroe County > Mount Hermon > Zip 42157

Zip Code 42157 — Mount Hermon, KY

ZIP Code 42157 is associated with Mount Hermon, KY, in Monroe County. The listed population estimate is 507; estimated density is 10.6 people per square mile. Among records with population estimates, it ranks #4 of 5 in Monroe County and #589 of 765 in KY.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (36.788720, -85.818700)

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

How 42157 Compares

MetricZIP 42157Monroe County recordsKY records
Population estimate50711,703 (sum)4,542,460 (sum)
Population Density10.6 /sq mi----
County population rank#4 of 5----
State population rank#589 of 765----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

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Nearby ZIP Codes in KY

ZIP CodeCityDistancePopulation estimate
ZIP 42131Etoile5.7 mi72
ZIP 42166Summer Shade8.4 mi2,691
ZIP 42133Fountain Run8.8 mi1,456
ZIP 42140Gamaliel9.2 mi1,367
ZIP 42167Tompkinsville9.4 mi8,172

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 →