Eldorado, OH ZIP code
The ZIP code for Eldorado, Ohio is 45321. It is in Preble County.
- Population in these ZIPs
- 1,272
- Avg. median income
- $69,100population-weighted
- Typical home value
- $175,000population-weighted
Loading map…
Click anywhere on the map to see which ZIP code it's in.
Eldorado, OH ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 45321 | 1,272 | $69,135 | $175,000 |
Population and median household income: ACS 2020–2024 5-year estimates. Typical home value: Zillow Home Value Index (September 2026) where available, otherwise the ACS median owner-reported value. "PO Box" marks ZIP codes with no delivery area of their own. Methodology
Cities near Eldorado
- New Paris 4 mi
- West Manchester 5 mi
- Lewisburg 8 mi
- Eaton 8 mi
- New Madison 8 mi
- Hollansburg 10 mi
- Verona 11 mi
- Arcanum 12 mi
- West Alexandria 13 mi
- Palestine 13 mi
- Pitsburg 14 mi
- Brookville 14 mi
Frequently asked questions
What is the ZIP code for Eldorado, OH?
The ZIP code for Eldorado, OH is 45321.
What county is Eldorado, Ohio in?
Eldorado ZIP codes are in Preble County.