ZIP Codes of Hardin County, KY

Population & People
Population & People
Total Population
123,990
Household Income
Household Income
Median Income
$71,431
Housing
Housing
Total Housing Units
52,641
Business & Economy
Business & Economy
Total Businesses
2,331
Employment
Employment
Employment Rate
55.28%
Education
Education
Bachelor's Degree+
25.17%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 15 ZIPs in this county.
Data Last Updated: July 1, 2026
ZIP Codes:15 ZIP Codes (13 Standard, 2 PO Box, 0 Unique) [See All]
Area Codes:270 / 364 / 502
Timezone:Eastern (GMT -05:00)
Local Time:11:53:36 PM
Population:123,990 [See All]
FIPS:21093
CBSA:Elizabethtown, KY
Land Area:751 sq mi
Water Area:5 sq mi
Coordinates:37.7205, -85.9525
Quick Link:
https://www.zip-codes.com/county/ky-hardin.asp
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Among Kentucky's 10 most populous counties
#6 of 120 counties with 123,990 residents.
Striking education divide
Bachelor's share spans 8.7% to 48.3% — a 40-point gap.

Standout ZIPs in this County


Most Populous
Elizabethtown · 53,987 people
43.5% of county total
Highest Income
Glendale · $88,066 median
1.2× county average
Largest Land Area
Elizabethtown · 182.6 sq mi
Spans the most ground
Fastest Growth
Upton · 36.0% (10-yr)
2,272 → 3,089 residents
Most Educated
Fort Knox · 48.3% bachelor's+
2,075 of 4,296 adults 25+

Things worth knowing about Hardin County


123,990 residents live across 15 ZIPs covering 751 sq mi, served by 12 distinct USPS-recognized cities.

Population moved from 119,381 to 123,990 from 2014 to 2024 — a +3.9% change. 6 ZIPs gained residents, 6 lost.

The county's wealthiest ZIP 42740 (Glendale, $88,066 median) and poorest ZIP 40177 (West Point, $50,577) are 28.3 miles apart — a 1.7× income gap across local geography.

Median home values vary 2.5× across this county — from $122,200 in 40177 (West Point) to $304,600 in 40162 (Rineyville).

Density varies 38× across the county — from 29 people/sq mi in 42732 (Eastview) to 1,103 in 40160 (Radcliff).

Educational attainment ranges from 8.7% bachelor's+ in 42732 (Eastview) to 48.3% in 40121 (Fort Knox) — the breadth of educational profiles across the area.

Within Kentucky, this is the #6 most populous of 120 counties and ranks #23 for median household income .

Weighted by population, the typical household earns about $70,234 across the county — reflecting what a typical resident sees, not a simple ZIP average.

25.2% of adults age 25+ hold a bachelor's degree or higher (20,830 of 82,765 reporting).

13 Standard delivery, 2 PO Box only, 0 single-entity Unique ZIPs serve this county.

All ZIP Codes in Hardin County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
42701ElizabethtownStandard53,987$69,619182.68.7%
40160RadcliffStandard23,624$58,50621.4-0.3%
40175Vine GroveStandard15,718$77,50992.112.6%
40121Fort KnoxStandard8,836$82,66366.2-14.0%
40162RineyvilleStandard6,180$84,72050.3-1.0%
42724CeciliaStandard5,345$73,46576.429.6%
42784UptonStandard3,089$68,69964.536.0%
42776SonoraStandard2,082$58,77169.0-38.3%
42740GlendaleStandard1,873$88,06631.610.0%
42732EastviewStandard1,541$73,14852.4-31.0%
40177West PointStandard1,523$50,57737.19.7%
42788White MillsStandard1927.6-57.4%
42702ElizabethtownPO Box0.0
40159RadcliffPO Box0.0
40122Fort KnoxStandard0.0

Adjacent & Nearby Counties