ZIP Codes of Trimble County, KY

Population & People
Population & People
Total Population
8,319
Household Income
Household Income
Median Income
$68,042
Housing
Housing
Total Housing Units
3,808
Business & Economy
Business & Economy
Total Businesses
87
Employment
Employment
Employment Rate
55.17%
Education
Education
Bachelor's Degree+
17.55%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 2 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:2 ZIP Codes (2 Standard, 0 PO Box, 0 Unique) [See All]
Area Code:502
Timezone:Eastern (GMT -05:00)
Local Time:2:12:22 PM
Population:8,319 [See All]
FIPS:21223
Land Area:155 sq mi
Water Area:5 sq mi
Coordinates:38.6299, -85.3628
Quick Link:
https://www.zip-codes.com/county/ky-trimble.asp
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Kentucky's #104 most populous county
8,319 residents across 2 ZIPs — #104 of 120 Kentucky counties.

Standout ZIPs in this County


Most Populous
Bedford · 5,068 people
60.9% of county total
Highest Income
Milton · $76,607 median
1.1× county average
Largest Land Area
Bedford · 96.3 sq mi
Spans the most ground
Fastest Growth
Bedford · 8.3% (10-yr)
4,679 → 5,068 residents
Most Educated
Milton · 20.5% bachelor's+
493 of 2,410 adults 25+

Things worth knowing about Trimble County


8,319 residents live across 2 ZIPs covering 155 sq mi, served by 2 distinct USPS-recognized cities.

Population moved from 8,168 to 8,319 from 2014 to 2024 — a +1.8% change. 1 ZIPs gained residents, 1 lost.

The county's wealthiest ZIP 40045 (Milton, $76,607 median) and poorest ZIP 40006 (Bedford, $59,477) are 5.8 miles apart — a 1.3× income gap across local geography.

Median home values vary 1.0× across this county — from $174,700 in 40045 (Milton) to $181,700 in 40006 (Bedford).

Density varies across the county — from 53 people/sq mi in 40006 (Bedford) to 56 in 40045 (Milton).

Educational attainment ranges from 15.7% bachelor's+ in 40006 (Bedford) to 20.5% in 40045 (Milton) — the breadth of educational profiles across the area.

Within Kentucky, this is the #104 most populous of 120 counties and ranks #29 for median household income .

Weighted by population, the typical household earns about $66,171 across the county — reflecting what a typical resident sees, not a simple ZIP average.

17.6% of adults age 25+ hold a bachelor's degree or higher (1,073 of 6,113 reporting).

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

Stories about Trimble 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.

Bedford

All ZIP Codes in Trimble County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
40006BedfordStandard5,068$59,47796.38.3%
40045MiltonStandard3,251$76,60758.3-6.8%

Adjacent & Nearby Counties