Casstown, OH ZIP code
The ZIP code for Casstown, Ohio is 45312. It is in Miami County.
- Population in these ZIPs
- 1,086
- Avg. median income
- $91,800population-weighted
- Typical home value
- $359,400population-weighted
- Metro area
- Dayton-Kettering-Beavercreek, OH
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Casstown, OH ZIP code list
| ZIP code | Population | Median income | Typical home value |
|---|---|---|---|
| 45312 | 1,086 | $91,842 | $359,400 |
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 Casstown
- Christiansburg 4 mi
- Fletcher 6 mi
- Troy 6 mi
- New Carlisle 8 mi
- Saint Paris 9 mi
- Tipp City 9 mi
- North Hampton 9 mi
- Conover 10 mi
- Piqua 10 mi
- Vandalia 12 mi
- Donnelsville 12 mi
- Medway 13 mi
Frequently asked questions
What is the ZIP code for Casstown, OH?
The ZIP code for Casstown, OH is 45312.
What county is Casstown, Ohio in?
Casstown ZIP codes are in Miami County.