ZIP Code 45321

  • Zip Code: 45321
  • Type: Standard
  • Official USPS city name: Eldorado
  • Official USPS State Code: OH
  • Official State Name: Ohio
  • ZCTA: TRUE
  • Population: 791.0
  • Density: 23.3
  • Primary Official County Code: 39135
  • Primary Official County Name: Preble
  • Official County Name: Preble
  • Official County Code: 39135
  • Imprecise: FALSE
  • Military: FALSE
  • Timezone: America/New_York (03:42 AM Saturday, July 26 2025-07-26 (GMT -0400))
  • Geo Point: 39.8735, -84.67821


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