ZIP Codes of Crittenden County, KY

Population & People
Population & People
Total Population
8,114
Household Income
Household Income
Median Income
$47,107
Housing
Housing
Total Housing Units
3,921
Business & Economy
Business & Economy
Total Businesses
133
Employment
Employment
Employment Rate
48.53%
Education
Education
Bachelor's Degree+
15.60%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 3 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:3 ZIP Codes (1 Standard, 2 PO Box, 0 Unique) [See All]
Area Codes:270 / 364
Timezone:Central (GMT -06:00)
Local Time:2:12:17 PM
Population:8,114 [See All]
FIPS:21055
Land Area:302 sq mi
Water Area:2 sq mi
Coordinates:37.2500, -88.1043
Quick Link:
https://www.zip-codes.com/county/ky-crittenden.asp
Need Crittenden data in your app? Look up ZIP, county, and city data with a single API call.
Try Free
Kentucky's #105 most populous county
8,114 residents across 3 ZIPs — #105 of 120 Kentucky counties.

Standout ZIPs in this County


Most Populous
Marion · 8,098 people
99.8% of county total
Highest Income
Marion · $47,107 median
1.0× county average
Largest Land Area
Marion · 302.2 sq mi
Spans the most ground
Fastest Growth
Marion · -2.9% (10-yr)
8,340 → 8,098 residents
Most Educated
Marion · 15.6% bachelor's+
874 of 5,587 adults 25+

Things worth knowing about Crittenden County


8,114 residents live across 3 ZIPs covering 302 sq mi, served by 3 distinct USPS-recognized cities.

Population moved from 8,358 to 8,114 from 2014 to 2024 — a -2.9% change. 0 ZIPs gained residents, 2 lost.

The county's wealthiest ZIP 42064 (Marion, $47,107 median) and poorest ZIP 42064 (Marion, $47,107) are 0.0 miles apart — a 1.0× income gap across local geography.

Within Kentucky, this is the #105 most populous of 120 counties and ranks #92 for median household income .

Weighted by population, the typical household earns about $47,107 across the county — reflecting what a typical resident sees, not a simple ZIP average.

15.6% of adults age 25+ hold a bachelor's degree or higher (874 of 5,603 reporting).

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

Stories about Crittenden 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.

Marion

All ZIP Codes in Crittenden County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
42064MarionStandard8,098$47,107302.2-2.9%
42037DycusburgPO Box160.0-11.1%
42033CraynePO Box0.0

Adjacent & Nearby Counties