ZIP Codes of Grant County, KY

Population & People
Population & People
Total Population
28,928
Household Income
Household Income
Median Income
$74,239
Housing
Housing
Total Housing Units
11,839
Business & Economy
Business & Economy
Total Businesses
411
Employment
Employment
Employment Rate
60.36%
Education
Education
Bachelor's Degree+
16.02%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 6 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:6 ZIP Codes (5 Standard, 1 PO Box, 0 Unique) [See All]
Area Code:859
Timezone:Eastern (GMT -05:00)
Local Time:2:12:18 PM
Population:28,928 [See All]
FIPS:21081
CBSA:Cincinnati, OH-KY-IN
Land Area:334 sq mi
Water Area:3 sq mi
Coordinates:38.6505, -84.6232
Quick Link:
https://www.zip-codes.com/county/ky-grant.asp
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Kentucky's #38 most populous county
28,928 residents across 6 ZIPs — #38 of 120 Kentucky counties.

Standout ZIPs in this County


Most Populous
Dry Ridge · 11,415 people
39.5% of county total
Highest Income
Crittenden · $83,488 median
1.1× county average
Largest Land Area
Dry Ridge · 104.7 sq mi
Spans the most ground
Fastest Growth
Dry Ridge · 6.8% (10-yr)
10,688 → 11,415 residents
Most Educated
Williamstown · 20.0% bachelor's+
1,070 of 5,340 adults 25+

Things worth knowing about Grant County


28,928 residents live across 6 ZIPs covering 334 sq mi, served by 6 distinct USPS-recognized cities.

Population moved from 28,152 to 28,928 from 2014 to 2024 — a +2.8% change. 4 ZIPs gained residents, 1 lost.

The county's wealthiest ZIP 41030 (Crittenden, $83,488 median) and poorest ZIP 41035 (Dry Ridge, $68,138) are 7.8 miles apart — a 1.2× income gap across local geography.

Median home values vary 1.6× across this county — from $158,300 in 41052 (Jonesville) to $248,300 in 41030 (Crittenden).

Density varies across the county — from 29 people/sq mi in 41052 (Jonesville) to 188 in 41030 (Crittenden).

Educational attainment ranges from 12.1% bachelor's+ in 41035 (Dry Ridge) to 20.0% in 41097 (Williamstown) — the breadth of educational profiles across the area.

Within Kentucky, this is the #38 most populous of 120 counties and ranks #17 for median household income .

Weighted by population, the typical household earns about $74,311 across the county — reflecting what a typical resident sees, not a simple ZIP average.

16.0% of adults age 25+ hold a bachelor's degree or higher (3,034 of 18,934 reporting).

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

All ZIP Codes in Grant County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
41035Dry RidgeStandard11,415$68,138104.76.8%
41097WilliamstownStandard7,801$77,52498.26.1%
41030CrittendenStandard6,162$83,48832.72.5%
41010CorinthStandard3,239$71,20488.1-20.1%
41052JonesvilleStandard311$70,84210.7591.1%
41054MasonPO Box0.0

Adjacent & Nearby Counties