ZIP Codes of Preble County, OH

Population & People
Population & People
Total Population
39,454
Household Income
Household Income
Median Income
$69,869
Housing
Housing
Total Housing Units
17,683
Business & Economy
Business & Economy
Total Businesses
671
Employment
Employment
Employment Rate
59.82%
Education
Education
Bachelor's Degree+
17.61%
Source: U.S. Census ACS 2024 5-Year Estimates · rolled up across the 10 ZIPs in this county.
Data Last Updated: June 1, 2026
ZIP Codes:10 ZIP Codes (7 Standard, 3 PO Box, 0 Unique) [See All]
Area Codes:283 / 326 / 513 / 937
Timezone:Eastern (GMT -05:00)
Local Time:2:13:22 PM
Population:39,454 [See All]
FIPS:39135
Land Area:417 sq mi
Water Area:1 sq mi
Coordinates:39.7736, -84.6058
Quick Link:
https://www.zip-codes.com/county/oh-preble.asp
Need Preble data in your app? Look up ZIP, county, and city data with a single API call.
Try Free
Ohio's #60 most populous county
39,454 residents across 10 ZIPs — #60 of 88 Ohio counties.

Standout ZIPs in this County


Most Populous
Eaton · 15,454 people
39.2% of county total
Highest Income
West Manchester · $95,652 median
1.4× county average
Largest Land Area
Eaton · 134.6 sq mi
Spans the most ground
Fastest Growth
Eldorado · 20.5% (10-yr)
1,056 → 1,272 residents
Most Educated
Eaton · 22.1% bachelor's+
2,459 of 11,145 adults 25+

Things worth knowing about Preble County


39,454 residents live across 10 ZIPs covering 417 sq mi, served by 10 distinct USPS-recognized cities.

Population moved from 40,441 to 39,454 from 2014 to 2024 — a -2.4% change. 4 ZIPs gained residents, 6 lost.

The county's wealthiest ZIP 45382 (West Manchester, $95,652 median) and poorest ZIP 45381 (West Alexandria, $62,263) are 12.5 miles apart — a 1.5× income gap across local geography.

Median home values vary 1.7× across this county — from $123,300 in 45378 (Verona) to $204,900 in 45381 (West Alexandria).

Density varies 29× across the county — from 60 people/sq mi in 45382 (West Manchester) to 1,767 in 45378 (Verona).

Educational attainment ranges from 11.5% bachelor's+ in 45338 (Lewisburg) to 22.1% in 45320 (Eaton) — the breadth of educational profiles across the area.

Within Ohio, this is the #60 most populous of 88 counties and ranks #48 for median household income .

Weighted by population, the typical household earns about $67,362 across the county — reflecting what a typical resident sees, not a simple ZIP average.

17.6% of adults age 25+ hold a bachelor's degree or higher (4,880 of 27,713 reporting).

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

All ZIP Codes in Preble County


ZIPCityTypePopulationMedian IncomeArea (sq mi)10-yr Growth
45320EatonStandard15,454$64,903134.61.5%
45311CamdenStandard5,701$68,55585.1-9.6%
45381West AlexandriaStandard5,626$62,26356.32.2%
45338LewisburgStandard4,761$74,77649.9-2.2%
45347New ParisStandard4,095$63,02556.0-12.9%
45321EldoradoStandard1,272$69,13514.120.5%
45382West ManchesterStandard1,154$95,65219.2-17.6%
45330GratisPO Box710$76,9640.9-12.3%
45378VeronaPO Box539$73,0000.341.1%
45070West ElktonPO Box142$50,4170.0-26.0%

Adjacent & Nearby Counties