ZIP code 45321
Where is ZIP code 45321?
Eldorado, Ohio
Preble County · Standard ZIP code
ZIP code 45321 belongs to Eldorado, Ohio in Preble County. 45321 is a standard ZIP code, so it covers street addresses as well as PO Boxes. It is in the Eastern Time zone and uses area codes 326 and 937. About 1,272 people live in the 45321 area, where the median household income is $69,135. The closest ZIP codes are 45382 (West Manchester, 3.3 mi east), 45347 (New Paris, 5.6 mi west) and 45346 (New Madison, 6 mi northwest).
| ZIP code | 45321 |
|---|---|
| Type | Standard ZIP code for street addresses and PO Boxes |
| Status | Active |
| City | Eldorado |
| State | Ohio (OH) |
| County | Preble County |
| Time zone | Eastern Time · now |
| Area codes | 326, 937 |
| Coordinates | 39.8882, -84.6786 map |
| 3-digit prefix | 453 |
Population and income in 45321
| Population | 1,272 · lower than 73% of Ohio ZIP codes |
|---|---|
| People per square mile | 90 · lower than 67% of Ohio ZIP codes |
| Median age | 29.1 years · lower than 95% of Ohio ZIP codes |
| Men / women | 52% / 48% |
| Median household income | $69,135 · lower than 53% of Ohio ZIP codes |
| Income per person | $31,472 |
| Below the poverty line | 12% |
| Bachelor’s degree or higher | 14% of adults 25+ |
| Median home value | $150,900 · lower than 71% of Ohio ZIP codes |
| Median rent | $1,012 a month |
| Housing units | 432 |
| Households | 424 (3 people on average) |
| Owners / renters | 88% / 12% |
| Land area | 14.12 sq mi (plus 0.01 sq mi of water) |
Source: U.S. Census Bureau, American Community Survey 5-year estimates (2020–2024) for ZIP Code Tabulation Area 45321. Census ZIP areas are close to, but not exactly the same as, USPS delivery areas.
ZIP codes near 45321
| ZIP code | City | Distance | Type |
|---|---|---|---|
| 45382 | West Manchester, OH | 3.3 mi E | Standard |
| 45347 | New Paris, OH | 5.6 mi W | Standard |
| 45346 | New Madison, OH | 6 mi NW | Standard |
| 45338 | Lewisburg, OH | 7.9 mi E | Standard |
| 45332 | Hollansburg, OH | 9.2 mi NW | Standard |
| 45378 | Verona, OH | 10.1 mi E | PO Box only |
| 45320 | Eaton, OH | 10.2 mi S | Standard |
| 45304 | Arcanum, OH | 10.5 mi NE | Standard |
| 45352 | Palestine, OH | 11.8 mi N | PO Box only |
| 47375 | Richmond, IN | 11.9 mi W | PO Box only |
| 47374 | Richmond, IN | 12 mi W | Standard |
| 45358 | Pitsburg, OH | 12.3 mi NE | PO Box only |
Straight-line distance between ZIP code center points. Find every ZIP code within 10 miles of 45321 or measure the distance to another ZIP code.
How to address mail to 45321
123 MAIN ST
ELDORADO OH 45321
Put the city, the two-letter state code and the ZIP code on the last line. Adding the 4-digit ZIP+4 code (45321-XXXX) helps mail sort faster but isn’t required.
Questions
- What city is ZIP code 45321?
- 45321 is a Eldorado, Ohio ZIP code.
- What county is 45321 in?
- ZIP code 45321 is in Preble County, Ohio.
- What time zone is ZIP code 45321 in?
- 45321 is in the Eastern Time zone (America/New_York).
- What area code is 45321?
- Phone numbers in ZIP code 45321 use area codes 326 and 937.
- What is the population of ZIP code 45321?
- About 1,272 people live in ZIP code 45321, according to the Census Bureau’s American Community Survey (2020–2024).
- What is the median income in 45321?
- The median household income in 45321 is $69,135 a year, lower than 53% of Ohio ZIP codes.
- What ZIP codes are near 45321?
- The nearest ZIP codes to 45321 are 45382 (West Manchester, 3.3 miles), 45347 (New Paris, 5.6 miles), 45346 (New Madison, 6 miles) and 45338 (Lewisburg, 7.9 miles).