ZIP Codes of Hancock County, KY

Population & People
Population & People
Total Population
9,300
Household Income
Household Income
Median Income
$66,356
Housing
Housing
Total Housing Units
3,904
Business & Economy
Business & Economy
Total Businesses
135
Employment
Employment
Employment Rate
54.66%
Education
Education
Bachelor's Degree+
16.99%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 3 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:3 ZIP Codes (2 Standard, 1 PO Box, 0 Unique) [See All]
Area Codes:270 / 364
Timezone:Central (GMT -06:00)
Local Time:2:12:18 PM
Population:9,300 [See All]
FIPS:21091
Land Area:188 sq mi
Water Area:1 sq mi
Coordinates:37.8891, -86.7989
Quick Link:
https://www.zip-codes.com/county/ky-hancock.asp
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Kentucky's #101 most populous county
9,300 residents across 3 ZIPs — #101 of 120 Kentucky counties.

Standout ZIPs in this County


Most Populous
Hawesville · 4,713 people
50.7% of county total
Highest Income
Lewisport · $76,213 median
1.1× county average
Largest Land Area
Hawesville · 112.1 sq mi
Spans the most ground
Fastest Growth
Lewisport · 22.8% (10-yr)
3,734 → 4,587 residents
Most Educated
Lewisport · 18.6% bachelor's+
553 of 2,977 adults 25+

Things worth knowing about Hancock County


9,300 residents live across 3 ZIPs covering 188 sq mi, served by 2 distinct USPS-recognized cities.

Population moved from 9,236 to 9,300 from 2014 to 2024 — a +0.7% change. 1 ZIPs gained residents, 1 lost.

The county's wealthiest ZIP 42351 (Lewisport, $76,213 median) and poorest ZIP 42348 (Hawesville, $56,500) are 8.0 miles apart — a 1.3× income gap across local geography.

Median home values vary 1.4× across this county — from $120,900 in 42348 (Hawesville) to $169,200 in 42351 (Lewisport).

Density varies across the county — from 42 people/sq mi in 42348 (Hawesville) to 61 in 42351 (Lewisport).

Educational attainment ranges from 15.6% bachelor's+ in 42348 (Hawesville) to 18.6% in 42351 (Lewisport) — the breadth of educational profiles across the area.

Within Kentucky, this is the #101 most populous of 120 counties and ranks #32 for median household income .

Weighted by population, the typical household earns about $66,223 across the county — reflecting what a typical resident sees, not a simple ZIP average.

17.0% of adults age 25+ hold a bachelor's degree or higher (1,065 of 6,267 reporting).

2 Standard delivery, 1 PO Box only, 0 single-entity Unique ZIPs serve this county.

All ZIP Codes in Hancock County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
42348HawesvilleStandard4,713$56,500112.1-14.3%
42351LewisportStandard4,587$76,21375.722.8%
42364HawesvillePO Box0.0

Adjacent & Nearby Counties