ZIP Code 42157

standard

Source:

Mount Hermon · Monroe County · Kentucky

Population
437

10/sq mi

Median income
$101,250

▲ 33% vs US

higher than 82% of US ZIPs

Median home value
$175,000

▼ 37% vs US

higher than 36% of US ZIPs

Bachelor's or higher
10.4%

Median age 30.2

Land area
45.5 sq mi

Chicago

ZIP code 42157 in Mount Hermon, Kentucky has a population of 437. The median household income is $101,250, which is 33% above the national average. Median home value is $175,000, 37% below the US average. 10.4% of residents hold a bachelor's degree or higher.

ZIP code 42157 is classified by USPS as a standard delivery area and covers roughly 45.5 square miles in Mount Hermon, Monroe County, Kentucky. The area is home to 437 residents, producing a population density of 10 people per square mile, and falls within the Chicago time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 42157 against Kentucky and the nation.

On the economic side, the median household income for ZIP 42157 sits at $101,250 (70% above the Kentucky average), while per-capita income is $27,512. The poverty rate stands at 28.6% and the unemployment rate at 0.0%. On housing, the median home value is $175,000 (10% above the state average) with median rent at per month, and 77.0% of occupied units are owner-occupied, a direct signal of whether 42157 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 10.4% of adults hold a bachelor's degree or higher, the median age is 30.2, and the average commute is . We also surface 5 nearby ZIP codes within roughly 10 miles and 5 additional ZIPs sharing Monroe County, so you can benchmark 42157 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + HUD FMR + FHFA HPI ACS demographics, ZBP business establishments, HUD Fair Market Rents, FHFA HPI for ZIP 42157, Mount Hermon, KY · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; HUD FMR + FHFA HPI updated quarterly/annually.

Quick Facts

437

Population

45.5

Area (sq mi)

10

People / sq mi

Chicago

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 42157?

30.2

Median Age

57.6%

Male

42.4%

Female

0.0%

Foreign-Born

White 98.8%
African American 0.0%
Asian 0.0%
American Indian or Alaska Native 0.0%
Native Hawaiian or Pacific Islander 0.0%
Two or More Ethnicities 1.2%
Hispanic or Latino 0.0%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$101,250

Median Household Income

+70% vs state

$27,512

Per Capita Income

28.6%

Poverty Rate

0.0%

Unemployment Rate

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 56.3%
Bachelor's Degree or Higher 10.4%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

174

Total Housing Units

148

Occupied Units

26

Vacant Units

3.43

Avg Household Size

Occupancy Type

Owner 77.0%
Renter 23.0%

$175,000

Median Home Value

+10% vs state

1978

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What businesses operate in this ZIP?

Census Bureau data shows 4 business establishments in ZIP 42157, employing approximately 32 people with a combined annual payroll of $2,139,000.

4

Businesses

32

Employees

$2.1M

Annual Payroll

1

Industry Sectors

Industry Establishments % of Total
Construction 3 75.0%

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 42157 vs 42140 →

ZIP Code City Population Distance
42140 Gamaliel, KY 1,264 9.3 mi
42130 Eighty Eight, KY 175 9.4 mi
42166 Summer Shade, KY 2,314 8.4 mi
42167 Tompkinsville, KY 8,145 9.1 mi
42133 Fountain Run, KY 1,370 9.1 mi

More ZIP Codes in Monroe County

Frequently Asked Questions

What county is ZIP code 42157 in?
ZIP code 42157 (Mount Hermon) is located in Monroe County, Kentucky. Monroe County contains multiple ZIP codes, see the full list at /counties/monroe-ky.
What is the population of ZIP code 42157?
ZIP code 42157 in Mount Hermon, KY has a population of 437 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 42157?
The median household income in ZIP 42157 is $101,250, which is 33% above the national average of $76,288.
What is the average home value in ZIP 42157?
The median home value in ZIP 42157 is $175,000, which is 37% below the national average of $278,155.
What is the demographic makeup of ZIP 42157?
The largest racial group in ZIP 42157 is White at 98.8%.
How many businesses are in ZIP code 42157?
ZIP code 42157 has 4 business establishments employing approximately 32 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What is the education level in ZIP code 42157?
In ZIP code 42157, 56.3% of residents aged 25+ have a high school diploma or higher, and 10.4% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 42157?
In ZIP code 42157, approximately 77.0% of occupied housing units are owner-occupied and 23.0% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 42157?
The poverty rate in ZIP code 42157 is 28.6% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

ZIP Code Research Guides

Official Data Resources for Mount Hermon, KY

Verify and explore additional data for this area using these official government sources.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023). Business data: Source: Census ZIP Code Business Patterns (ZBP) 2023. Home value trends: Source: FHFA House Price Index (HPI), Five-Digit ZIP Codes.

PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.