ZIP Codes of Monroe County, KY

Population & People
Population & People
Total Population
11,703
Household Income
Household Income
Median Income
$73,394
Housing
Housing
Total Housing Units
5,575
Business & Economy
Business & Economy
Total Businesses
215
Employment
Employment
Employment Rate
56.23%
Education
Education
Bachelor's Degree+
15.62%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 5 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:5 ZIP Codes (5 Standard, 0 PO Box, 0 Unique) [See All]
Area Codes:270 / 364
Timezone:Central (GMT -06:00)
Local Time:2:12:21 PM
Population:11,703 [See All]
FIPS:21171
Land Area:369 sq mi
Water Area:3 sq mi
Coordinates:36.7110, -85.7689
Quick Link:
https://www.zip-codes.com/county/ky-monroe.asp
Need Monroe data in your app? Look up ZIP, county, and city data with a single API call.
Try Free
Kentucky's #88 most populous county
11,703 residents across 5 ZIPs — #88 of 120 Kentucky counties.

Standout ZIPs in this County


Most Populous
Tompkinsville · 8,172 people
69.8% of county total
Highest Income
Hestand · $108,056 median
1.5× county average
Largest Land Area
Tompkinsville · 202.0 sq mi
Spans the most ground
Fastest Growth
Tompkinsville · 4.3% (10-yr)
7,838 → 8,172 residents
Most Educated
Fountain Run · 17.2% bachelor's+
177 of 1,029 adults 25+

Things worth knowing about Monroe County


11,703 residents live across 5 ZIPs covering 369 sq mi, served by 5 distinct USPS-recognized cities.

Population moved from 11,088 to 11,703 from 2014 to 2024 — a +5.5% change. 4 ZIPs gained residents, 1 lost.

The county's wealthiest ZIP 42151 (Hestand, $108,056 median) and poorest ZIP 42140 (Gamaliel, $46,813) are 14.8 miles apart — a 2.3× income gap across local geography.

Median home values vary 1.9× across this county — from $91,900 in 42140 (Gamaliel) to $175,000 in 42157 (Mount Hermon).

Density varies across the county — from 7 people/sq mi in 42151 (Hestand) to 40 in 42167 (Tompkinsville).

Educational attainment ranges from 10.4% bachelor's+ in 42157 (Mount Hermon) to 40.0% in 42151 (Hestand) — the breadth of educational profiles across the area.

Within Kentucky, this is the #88 most populous of 120 counties and ranks #18 for median household income with the #32 fastest decade growth .

Weighted by population, the typical household earns about $53,332 across the county — reflecting what a typical resident sees, not a simple ZIP average.

15.6% of adults age 25+ hold a bachelor's degree or higher (1,260 of 8,066 reporting).

5 Standard delivery, 0 PO Box only, 0 single-entity Unique ZIPs serve this county.

Stories about Monroe County


Single-ZIP anchor

One ZIP holds the majority of this county's population — a sign of a county built around a single city or town.

Tompkinsville

All ZIP Codes in Monroe County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
42167TompkinsvilleStandard8,172$48,497202.04.3%
42133Fountain RunStandard1,456$62,35378.52.0%
42140GamalielStandard1,367$46,81340.63.9%
42157Mount HermonStandard507$101,25018.7156.1%
42151HestandStandard201$108,05629.0-35.0%

Adjacent & Nearby Counties