ZIP Codes of Clay County, AL

Population & People
Population & People
Total Population
14,325
Household Income
Household Income
Median Income
$60,794
Housing
Housing
Total Housing Units
7,356
Business & Economy
Business & Economy
Total Businesses
194
Employment
Employment
Employment Rate
46.22%
Education
Education
Bachelor's Degree+
12.96%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 6 ZIPs in this county.
Data Last Updated: July 1, 2026
ZIP Codes:6 ZIP Codes (4 Standard, 2 PO Box, 0 Unique) [See All]
Area Codes:256 / 938
Timezone:Central (GMT -06:00)
Local Time:11:52:36 PM
Population:14,325 [See All]
FIPS:01027
Land Area:506 sq mi
Water Area:2 sq mi
Coordinates:33.2507, -85.8460
Quick Link:
https://www.zip-codes.com/county/al-clay.asp
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Alabama's #57 most populous county
14,325 residents across 6 ZIPs — #57 of 68 Alabama counties.

Standout ZIPs in this County


Most Populous
Lineville · 6,028 people
42.1% of county total
Highest Income
Cragford · $84,792 median
1.4× county average
Largest Land Area
Lineville · 191.5 sq mi
Spans the most ground
Fastest Growth
Delta · 43.8% (10-yr)
1,236 → 1,777 residents
Most Educated
Lineville · 13.3% bachelor's+
577 of 4,345 adults 25+

Things worth knowing about Clay County


14,325 residents live across 6 ZIPs covering 506 sq mi, served by 6 distinct USPS-recognized cities.

Population moved from 13,103 to 14,325 from 2014 to 2024 — a +9.3% change. 5 ZIPs gained residents, 0 lost (and 1 held flat).

The county's wealthiest ZIP 36255 (Cragford, $84,792 median) and poorest ZIP 36266 (Lineville, $48,924) are 10.9 miles apart — a 1.7× income gap across local geography.

Median home values vary 1.6× across this county — from $127,800 in 36255 (Cragford) to $206,400 in 36266 (Lineville).

Density varies across the county — from 17 people/sq mi in 36258 (Delta) to 35 in 36251 (Ashland).

Educational attainment ranges from 10.2% bachelor's+ in 36258 (Delta) to 18.8% in 36255 (Cragford) — the breadth of educational profiles across the area.

Within Alabama, this is the #57 most populous of 68 counties and ranks #22 for median household income with the #12 fastest decade growth .

Weighted by population, the typical household earns about $53,297 across the county — reflecting what a typical resident sees, not a simple ZIP average.

13.0% of adults age 25+ hold a bachelor's degree or higher (1,335 of 10,300 reporting).

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

Stories about Clay County


Big & sparse

A frontier county — vast land area with only a few residents per square mile. Daily life looks very different here than in the country's denser counties.

Total area
506
square miles
Avg density
28.3
people per sq mi
Population
14,325
across 6 ZIPs
Lineville
191.5 sq mi
6,028 residents
Ashland
150.2 sq mi
5,302 residents
Delta
106.2 sq mi
1,777 residents

All ZIP Codes in Clay County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
36266LinevilleStandard6,028$48,924191.51.0%
36251AshlandStandard5,302$50,466150.25.7%
36258DeltaStandard1,777$58,993106.243.8%
36255CragfordStandard992$84,79258.520.7%
36267MillervillePO Box2260.0258.7%
35082HollinsPO Box00.0

Adjacent & Nearby Counties