Mount Hermon, KY · standard
ZIP Code 42157
Monroe County, Kentucky - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.
- 437
- 10/sq mi Low-density area
- $101,250
- Median income Above-median income area
- $175,000
- Median home value Near-median home value
- 10.4%
- Bachelor's or higher Below-average bachelor's attainment
National ZIP placement
Mount Hermon pairs an upper-quartile household income with below-median home values, in a rural, homeowner-dominated area.
- Top 18%
- household income, US ZIPs
- 36th pct
- home value, US ZIPs
- 10
- people per sq mi
- 77%
- owner-occupied homes
Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 42157 against every reporting US ZIP.
ZIP code 42157 is a sparsely populated ZIP (a standard USPS delivery area) in Mount Hermon, Monroe County, Kentucky, home to just 437 residents across 45.5 square miles, a density of 10 people per square mile, in the Chicago time zone.
ZIP 42157 lands in the middle-income range, with a median household income of $101,250 (70% above the average Kentucky ZIP), while per-capita income is $27,512. The poverty rate is 28.6%, so the area-level income figures should not be treated as typical household experience. Median home value is $175,000 (10% above the average Kentucky ZIP); 77.0% of occupied homes are owner-occupied.
Formal educational attainment runs low here: just 10.4% of adults hold a bachelor's degree or higher, the median age is 30.2, and the average commute is -. The page also surfaces 5 ZIP codes within roughly 10 miles and 5 more in Monroe County, so 42157 can be compared with both its immediate and county-level context.
Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →
Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, 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; FHFA HPI updated quarterly/annually.
Quick Facts
437
Population
45.5
Area (sq mi)
10
People / sq mi
Chicago
Time Zone
standard
ZIP Type
Who lives in ZIP 42157?
30.2
Median Age
57.6%
Male
42.4%
Female
0.0%
Foreign-Born
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 ZIP avg
$27,512
Per Capita Income
28.6%
Poverty Rate
0.0%
Unemployment Rate
How ZIP 42157 ranks among Kentucky ZIPs
Mount Hermon, KY household income vs. every Kentucky ZIP code
Median household income among 646 reporting Kentucky ZIPs (this ZIP's population is too small for a reliable national-corpus placement)
$101,250 Top 4% higher than 96% of 646 Kentucky ZIPs
Each bar is a $20K-wide band; taller bars hold more Kentucky ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.
Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What is the education profile here?
Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)
What does housing look like?
Housing stock: occupied vs vacant
174housing units
174
Total Housing Units
148
Occupied Units
26
Vacant Units
3.43
Avg Household Size
Occupancy Type
$175,000
Median Home Value
+10% vs state ZIP avg
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 42157 vs its nearest neighbors, by population
Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 42167
Tompkinsville (42167)
8,145 residents
- 42166 2,314
Summer Shade (42166)
2,314 residents
- 42133 1,370
Fountain Run (42133)
1,370 residents
- 42140 1,264
Gamaliel (42140)
1,264 residents
- 42157 437
Mount Hermon (42157)
437 residents
- 42130 175
Eighty Eight (42130)
175 residents
What this shows Among its immediate neighbors, ZIP 42157 ranks #5 by population - useful context the national average alone can't give.
ZIP 42157 vs its nearest neighbors, by median income
Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.
- 42157
Mount Hermon (42157)
$101,250 median income
- 42133
Fountain Run (42133)
$62,353 median income
- 42166
Summer Shade (42166)
$49,783 median income
- 42167
Tompkinsville (42167)
$48,497 median income
- 42140
Gamaliel (42140)
$46,813 median income
What this shows By household income, ZIP 42157 ranks the highest of 5 neighboring ZIPs, local affluence varies block to block, not just metro to metro.
Nationwide ZIPs with similar ACS profiles
Two Census-derived peer sets for ZIP 42157, both outside KY so the neighborhoods are not geographic containment (Nearby and same-county blocks stay local).
Similar median household income
Nearest cross-state ZIPs by ACS median household income.
More ZIP Codes in Monroe County
Related Areas
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.
Related
Take this with you
What to do with ZIP 42157's numbers, next.
- See how ZIP 42157 compares to a neighboring ZIP code on the same Census fields Compare this ZIP
- Check where Mount Hermon, KY ranks among every U.S. ZIP code on income, education, or homeownership View national rankings
- Save this ZIP to your shortlist to track alongside others you're considering View your shortlist
ZIP Code Tabulation Areas (ZCTAs) are Census Bureau approximations of USPS ZIP codes; figures describe the ZCTA area, not any single address within it.