ZIP code 42157: Mount Hermon, KY
42157 is a ZIP code in Mount Hermon, Kentucky, mainly in Monroe County. About 507 people live here.
- Population
- 507
- Median household income
- $101,250
- Typical home value
- $215,600+8.3% in 12 months
- Median rent
- —gross, per month
- Median age
- 30.2
- Homeowners
- 77%of occupied homes
Shaded: ZIP code 42157's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 42157 details
| City | Mount Hermon |
|---|---|
| State | Kentucky |
| County | Monroe County |
| Metro area | Not in a metro or micro area |
| Time zone | Central Time (UTC−6), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 18.5 sq mi, plus 0 sq mi of water |
| Population density | 27 people per sq mi |
| Bachelor's degree or higher | 10.4% of adults 25+ |
| Average commute | 26.7 minutes |
| Center coordinates | 36.78139, -85.81974 |
ZIP codes near 42157
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 42131 | Etoile, KY | 6.0 mi | 72 |
| 42166 | Summer Shade, KY | 8.2 mi | 2,691 |
| 42133 | Fountain Run, KY | 8.5 mi | 1,456 |
| 42140 | Gamaliel, KY | 8.6 mi | 1,367 |
| 42167 | Tompkinsville, KY | 9.1 mi | 8,172 |
| 42130 | Eighty Eight, KY | 10.2 mi | 124 |
| 42123 | Austin, KY | 10.4 mi | 1,149 |
| 42124 | Beaumont, KY | 10.9 mi | 28 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Buying a home in 42157?
A typical home in ZIP code 42157 is worth about $215,600 (Zillow Home Value Index). The median household here earns $101,250 a year. See what buying here would cost per month, with Kentucky average taxes and insurance filled in.
Monthly payment for a $215,600 homeWhat can a $101,250 income afford?Rental property numbers
About ZIP code 42157
What city is ZIP code 42157?
ZIP code 42157 is in Mount Hermon, KY, in Monroe County.
What county is ZIP code 42157 in?
42157 is mainly in Monroe County, Kentucky.
What is the population of ZIP code 42157?
About 507 people live in ZIP code 42157, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 42157 in?
42157 is in Central Time (UTC−6). It observes daylight saving time.