ZIP Codes of Estill County, KY

Population & People
Population & People
Total Population
13,994
Household Income
Household Income
Median Income
$43,848
Housing
Housing
Total Housing Units
6,845
Business & Economy
Business & Economy
Total Businesses
181
Employment
Employment
Employment Rate
43.92%
Education
Education
Bachelor's Degree+
12.05%
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:606
Timezone:Eastern (GMT -05:00)
Local Time:2:12:18 PM
Population:13,994 [See All]
FIPS:21065
CBSA:Richmond-Berea, KY
Land Area:253 sq mi
Water Area:3 sq mi
Coordinates:37.7091, -83.9619
Quick Link:
https://www.zip-codes.com/county/ky-estill.asp
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Kentucky's #74 most populous county
13,994 residents across 2 ZIPs — #74 of 120 Kentucky counties.

Standout ZIPs in this County


Most Populous
Irvine · 12,718 people
90.9% of county total
Highest Income
Irvine · $46,367 median
1.1× county average
Largest Land Area
Irvine · 209.5 sq mi
Spans the most ground
Fastest Growth
Irvine · -2.7% (10-yr)
13,071 → 12,718 residents
Most Educated
Irvine · 12.1% bachelor's+
1,107 of 9,125 adults 25+

Things worth knowing about Estill County


13,994 residents live across 2 ZIPs covering 253 sq mi, served by 2 distinct USPS-recognized cities.

Population moved from 14,585 to 13,994 from 2014 to 2024 — a -4.1% change. 0 ZIPs gained residents, 2 lost.

The county's wealthiest ZIP 40336 (Irvine, $46,367 median) and poorest ZIP 40472 (Ravenna, $41,328) are 7.6 miles apart — a 1.1× income gap across local geography.

Median home values vary 1.2× across this county — from $101,700 in 40472 (Ravenna) to $121,600 in 40336 (Irvine).

Density varies across the county — from 29 people/sq mi in 40472 (Ravenna) to 61 in 40336 (Irvine).

Educational attainment ranges from 11.3% bachelor's+ in 40472 (Ravenna) to 12.1% in 40336 (Irvine) — the breadth of educational profiles across the area.

Within Kentucky, this is the #74 most populous of 120 counties and ranks #101 for median household income .

Weighted by population, the typical household earns about $45,908 across the county — reflecting what a typical resident sees, not a simple ZIP average.

12.1% of adults age 25+ hold a bachelor's degree or higher (1,217 of 10,096 reporting).

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

Stories about Estill 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.

Irvine

All ZIP Codes in Estill County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
40336IrvineStandard12,718$46,367209.5-2.7%
40472RavennaStandard1,276$41,32843.5-15.7%

Adjacent & Nearby Counties