ZIP Code 45321

ZIP code 45321 is classified by USPS as a standard delivery area and covers roughly 34.0 square miles in Eldorado, Preble County, Ohio. The area is home to 931 residents, producing a population density of 27 people per square mile, and falls within the New York time zone. These USPS and Census boundary values drive every downstream statistic on this page, including the benchmarks that compare 45321 against Ohio and the nation.

On the economic side, the median household income for ZIP 45321 sits at $69,135 (5% below the Ohio average), while per-capita income is $31,472. The poverty rate stands at 11.5% and the unemployment rate at 0.5%. On housing, the median home value is $150,900 (23% below the state average) with median rent at $1,012 per month, and 88.4% of occupied units are owner-occupied, a direct signal of whether 45321 behaves more like a homeowner neighborhood or a renter-heavy ZIP.

Education and household profile round out the picture: 14.3% of adults hold a bachelor's degree or higher, the median age is 29.1, and the average commute is 31 minutes. We also surface 7 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Preble County, so you can benchmark 45321 against its immediate geography rather than a national average alone. Every figure is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates, HUD Fair Market Rents, and FHFA Home Price Index data, no estimates, no proprietary scoring. Verify with HUD →