ZIP Codes of Warren County, IN

Population & People
Population & People
Total Population
5,594
Household Income
Household Income
Median Income
$80,824
Housing
Housing
Total Housing Units
2,536
Business & Economy
Business & Economy
Total Businesses
116
Employment
Employment
Employment Rate
60.65%
Education
Education
Bachelor's Degree+
15.07%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 4 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:4 ZIP Codes (3 Standard, 1 PO Box, 0 Unique) [See All]
Area Code:765
Timezone:Eastern (GMT -05:00)
Local Time:2:12:09 PM
Population:5,594 [See All]
FIPS:18171
CBSA:Lafayette-West Lafayette, IN
Land Area:214 sq mi
Water Area:1 sq mi
Coordinates:40.3089, -87.3886
Quick Link:
https://www.zip-codes.com/county/in-warren.asp
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Indiana's #91 most populous county
5,594 residents across 4 ZIPs — #91 of 92 Indiana counties.

Standout ZIPs in this County


Most Populous
Williamsport · 3,516 people
62.9% of county total
Highest Income
West Lebanon · $105,842 median
1.3× county average
Largest Land Area
Williamsport · 141.5 sq mi
Spans the most ground
Fastest Growth
West Lebanon · 34.8% (10-yr)
1,017 → 1,371 residents
Most Educated
Williamsport · 17.6% bachelor's+
475 of 2,706 adults 25+

Things worth knowing about Warren County


5,594 residents live across 4 ZIPs covering 214 sq mi, served by 4 distinct USPS-recognized cities.

Population moved from 5,756 to 5,594 from 2014 to 2024 — a -2.8% change. 2 ZIPs gained residents, 2 lost.

The county's wealthiest ZIP 47991 (West Lebanon, $105,842 median) and poorest ZIP 47975 (Pine Village, $71,250) are 13.2 miles apart — a 1.5× income gap across local geography.

Median home values vary 1.8× across this county — from $86,400 in 47982 (State Line) to $158,400 in 47993 (Williamsport).

Density varies 558× across the county — from 14 people/sq mi in 47975 (Pine Village) to 8,047 in 47982 (State Line).

Educational attainment ranges from 3.2% bachelor's+ in 47991 (West Lebanon) to 26.8% in 47975 (Pine Village) — the breadth of educational profiles across the area.

Within Indiana, this is the #91 most populous of 92 counties and ranks #17 for median household income .

Weighted by population, the typical household earns about $80,531 across the county — reflecting what a typical resident sees, not a simple ZIP average.

15.1% of adults age 25+ hold a bachelor's degree or higher (620 of 4,115 reporting).

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

Stories about Warren 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.

Williamsport

All ZIP Codes in Warren County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
47993WilliamsportStandard3,516$72,455141.5-14.6%
47991West LebanonStandard1,371$105,84230.834.8%
47975Pine VillageStandard604$71,25041.923.3%
47982State LinePO Box103$73,7500.0-22.6%

Adjacent & Nearby Counties