US ZIP Code
42157

Mount Hermon, KY

Monroe County  ·  Kentucky

● Active
👥 487 Population ↓ 32% since 2019
💰 $97,946 Median HH Income
▲ 28% above avg
🎂 37.9 Median Age ↑ 59% since 2019
🏠 $155,100 Median Home Value
▼ 44% below avg ↑ 67% since 2019
🎓 17.9% College Grads
▼ 54% below avg
📊 0.0% Unemployment
▼ 100% below avg
ZIP Code Details
ZIP Code42157
CityMount Hermon
StateKentucky (KY)
CountyMonroe County
Area Code270/364
Elevation971 ft
Latitude36.781385
Longitude-85.81974
TimezoneNew York (DST)
FIPS21171
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 55.4% (270) Female 44.6% (217) ♀

Race & Ethnicity

White: 100%Race
White100.0%

Age Breakdown

Under 5
10%
5–17
15%
18–24
14%
25–44
29%
45–64
18%
65+
4%

Key Indicators

Median Age37.9 yrs ↑ 59% since 2019
Avg Household Size3.36
Below Poverty27.1% ▲ 171% above avg
College Grads17.9% ▼ 54% below avg
Unemployment0.0% ▼ 100% below avg
No HS Diploma6 (2.2%)
HS Graduate129 (46.2%)
Some College42 (15.1%)
Associates52 (18.6%)
Bachelors22 (7.9%)
Graduate Degree28 (10%)

Education

No HS: 2.2%HS Grad: 46.2%Some College: 15.1%Associates: 18.6%Bachelors: 7.9%Graduate: 10%Edu
No HS2.2%
HS Grad46.2%
Some College15.1%
Associates18.6%
Bachelors7.9%
Graduate10.0%
Housing & Income

Housing Tenure

Owner: 77.9%Renter: 22.1%Tenure
Owner77.9%
Renter22.1%

Home Value Distribution

Under $50k
11%
$50k–100k
16%
$100k–150k
20%
$150k–200k
36%
$200k–300k
17%

Financials

Median HH Income$97,946 ▲ 28% above avg
Median Home Value$155,100 ▼ 44% below avg ↑ 67% since 2019
Home/Income Ratio1.6x (nat avg ~3.5x)
Total Units183
Vacant Units38
Avg HH Size3.36

Income Distribution

Under $25k
10%
$25k–50k
14%
$50k–75k
12%
$75k–100k
21%
$100k–150k
28%
$150k–200k
14%
Employment & Commute

How People Get to Work

Drove Alone
100%

Commute Time

15–30 min
49%
30–45 min
41%
Over 45 min
10%
Housing Stock

Year Built

Before 1940
4%
1940s–1950s
9%
1960s–1970s
11%
1980s–1990s
27%
2000+
50%

Summary

Total Units183
Vacant38
Owner Occupied77.9%
Renter Occupied22.1%
Avg HH Size3.36
Frequently Asked Questions
ZIP code 42157 is in Mount Hermon, KY, in Monroe County.
ZIP code 42157 is located in Kentucky (KY).
ZIP code 42157 is in Monroe County, KY.
ZIP 42157 observes the New York timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 42157 is 487 people (ACS 2023).
The median household income in ZIP code 42157 is $97,946 (ACS 2023).
The median home value in ZIP 42157 is $155,100 (ACS 2023).
About ZIP Code 42157

ZIP code 42157 is located in Mount Hermon, Kentucky, within Monroe County. With a population of 487, this is a sparsely populated ZIP code with a relatively young community — the median age is 37.9 years. Economically, 42157 is a middle-income ZIP code: the median household income of $97,946 is above the national average.

Real estate in ZIP code 42157 represents an affordable housing market. The median home value of $155,100 is below the national average. Homeownership is strong here — 77.9% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 67% since 2019.

The population of 42157 is primarily White (100.00%). Residents are less-educated — 17.9% hold a bachelor's degree or higher, which is well below the national average. Poverty affects a significant share of residents at 27.1%.

Overall, ZIP code 42157 in Mount Hermon, KY is characterized as middle-income, less-educated, a relatively young community, and predominantly owner-occupied. With 487 residents, a median household income of $97,946, and a median home value of $155,100, it offers a clear picture of life in this part of Kentucky.