ZIP Codes of Rockcastle County, KY

Population & People
Population & People
Total Population
13,928
Household Income
Household Income
Median Income
$43,598
Housing
Housing
Total Housing Units
6,509
Business & Economy
Business & Economy
Total Businesses
197
Employment
Employment
Employment Rate
45.44%
Education
Education
Bachelor's Degree+
14.75%
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 (4 Standard, 2 PO Box, 0 Unique) [See All]
Area Code:606
Timezone:Eastern (GMT -05:00)
Local Time:2:12:22 PM
Population:13,928 [See All]
FIPS:21203
CBSA:Richmond-Berea, KY
Land Area:298 sq mi
Water Area:1 sq mi
Coordinates:37.3750, -84.3139
Quick Link:
https://www.zip-codes.com/county/ky-rockcastle.asp
Need Rockcastle data in your app? Look up ZIP, county, and city data with a single API call.
Try Free
Kentucky's #75 most populous county
13,928 residents across 6 ZIPs — #75 of 120 Kentucky counties.

Standout ZIPs in this County


Most Populous
Mount Vernon · 8,370 people
60.1% of county total
Highest Income
Brodhead · $52,619 median
1.2× county average
Largest Land Area
Mount Vernon · 155.8 sq mi
Spans the most ground
Fastest Growth
Brodhead · -12.2% (10-yr)
3,922 → 3,445 residents
Most Educated
Mount Vernon · 16.7% bachelor's+
1,026 of 6,143 adults 25+

Things worth knowing about Rockcastle County


13,928 residents live across 6 ZIPs covering 298 sq mi, served by 6 distinct USPS-recognized cities.

Population moved from 15,273 to 13,928 from 2014 to 2024 — a -8.8% change. 1 ZIPs gained residents, 3 lost.

The county's wealthiest ZIP 40409 (Brodhead, $52,619 median) and poorest ZIP 40460 (Orlando, $35,417) are 12.3 miles apart — a 1.5× income gap across local geography.

Median home values vary 2.3× across this county — from $69,000 in 40460 (Orlando) to $156,300 in 40456 (Mount Vernon).

Density varies across the county — from 13 people/sq mi in 40445 (Livingston) to 76 in 40409 (Brodhead).

Educational attainment ranges from 4.3% bachelor's+ in 40460 (Orlando) to 16.7% in 40456 (Mount Vernon) — the breadth of educational profiles across the area.

Within Kentucky, this is the #75 most populous of 120 counties and ranks #102 for median household income .

Weighted by population, the typical household earns about $46,795 across the county — reflecting what a typical resident sees, not a simple ZIP average.

14.8% of adults age 25+ hold a bachelor's degree or higher (1,482 of 10,045 reporting).

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

Stories about Rockcastle 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.

Mount Vernon

Population decline

Rockcastle County lost 8.8% of residents between 2014 and 2024. ZIPs that shed the largest share:

Mount Vernon
-12.9%
9,614 → 8,370 residents
Brodhead
-12.2%
3,922 → 3,445 residents

All ZIP Codes in Rockcastle County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
40456Mount VernonStandard8,370$46,907155.8-12.9%
40409BrodheadStandard3,445$52,61945.1-12.2%
40460OrlandoStandard1,358$35,41736.747.1%
40445LivingstonStandard755$39,44960.1-7.2%
40492WildiePO Box0.0
40473Renfro ValleyPO Box0.0

Adjacent & Nearby Counties