Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

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zipcodes.pro — STATE/KY/COUNTY/ALLEN

Allen County, KY ZIP codes

Allen County, KY has 3 ZIP codes, in 3 towns: 42164, 42120 and 42153. 1 more crosses into it from a neighbouring county: 42133.

The county seat is Scottsville.

ZIP codes
3
Partly in it
1 more
Towns
3
County seat
Scottsville
County FIPS
21003
Population
21,293
Median household income
$61,403
Land area
344 sq mi
Metro area
Bowling Green

Allen County ZIP codes by town

Scottsville (county seat)
42164

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

ZIP codes partly in Allen County

This ZIP code lies mostly in a neighbouring county but covers a twentieth or more of Allen County.

Map of Allen County ZIP codes

421204215342164

The ZIP codes of Allen County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Allen County in numbers

About 21,293 people live in Allen County, in 8,035 households, the 53rd most populous of Kentucky's 120 counties. The median household income is $61,403 a year, 4% below the Kentucky median of $63,726 (US: $80,734). The median owner-occupied home is valued at $192,300 (6% below the Kentucky median), and median gross rent is $844 a month. The median age is 40.7; 18.4% of adults 25 and over hold a bachelor's degree or higher (27.6% across Kentucky); the average commute takes 27 minutes.

Population21,293Allen21,293
Households8,035Allen8,035
Median age40.7Allen40.7Kentucky39.1US 38.9
Median household income$61,403Allen$61,403Kentucky$63,726US $80,734
Median home value$192,300Allen$192,300Kentucky$205,600US $332,700
Median gross rent$844Allen$844Kentucky$967US $1,413
Bachelor's degree or higher18.4%Allen18.4%Kentucky27.6%US 35.7%
Mean commute27.3 minAllen27.3 minKentucky24.0 minUS 26.4 min
Population density62 / sq miAllen62 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.

Largest towns in Allen County

Largest towns in Allen County
TownZIP codesPopulation
Scottsville 1 4,427
Adolphus 1 2,745
Holland 1 18

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Allen County.

Not sure you are in Allen County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Allen County, with figures

ZIP codes in Allen County
ZIP City Type Population Median income Median home
42120 Adolphus , KY Standard 2,745 $64,958 $178,500
42153 Holland , KY Standard 18 — —
42164 Scottsville , KY Standard 17,673 $60,106 $196,800

Cite this page

zipcodes.pro. “Allen County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/ky/county/allen

Underlying data is public domain or openly licensed — sources, vintages and licences.