ZIP code 45312: Casstown, OH
45312 is a ZIP code in Casstown, Ohio, mainly in Miami County, part of the Dayton-Kettering-Beavercreek, OH metro area. About 1,086 people live here.
- Population
- 1,086
- Median household income
- $91,842
- Typical home value
- $359,400+4.3% in 12 months
- Median rent
- $1,156gross, per month
- Median age
- 52.7
- Homeowners
- 95.7%of occupied homes
Shaded: ZIP code 45312's area. Click anywhere on the map to see which ZIP code it's in.
ZIP codes within 10 milesWithin 25 miles
ZIP code 45312 details
| City | Casstown |
|---|---|
| State | Ohio |
| County | Miami County (also partly Champaign County) |
| Metro area | Dayton-Kettering-Beavercreek, OH |
| Time zone | Eastern Time (UTC−5), observes daylight saving time |
| Type | Standard (delivery area) |
| Land area | 27.3 sq mi, plus 0 sq mi of water |
| Population density | 40 people per sq mi |
| Bachelor's degree or higher | 22.6% of adults 25+ |
| Average commute | 21.4 minutes |
| Center coordinates | 40.05215, -84.09302 |
ZIP codes near 45312
| ZIP code | City | Distance | Population |
|---|---|---|---|
| 45389 | Christiansburg, OH | 3.6 mi | 708 |
| 45373 | Troy, OH | 5.6 mi | 37,565 |
| 45326 | Fletcher, OH | 6.1 mi | 1,446 |
| 45374 | Troy, OH | 7.3 mi | — |
| 45344 | New Carlisle, OH | 8.1 mi | 16,979 |
| 43072 | Saint Paris, OH | 8.5 mi | 5,253 |
| 45371 | Tipp City, OH | 8.6 mi | 22,865 |
| 45349 | North Hampton, OH | 9.2 mi | 234 |
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
Buying a home in 45312?
A typical home in ZIP code 45312 is worth about $359,400 (Zillow Home Value Index). The median household here earns $91,842 a year. See what buying here would cost per month, with Ohio average taxes and insurance filled in.
Monthly payment for a $359,400 homeWhat can a $91,842 income afford?Rental property numbers
About ZIP code 45312
What city is ZIP code 45312?
ZIP code 45312 is in Casstown, OH, in Miami County.
What county is ZIP code 45312 in?
45312 is mainly in Miami County, Ohio, and partly in Champaign County.
What is the population of ZIP code 45312?
About 1,086 people live in ZIP code 45312, according to the American Community Survey 2020–2024 5-year estimates.
What time zone is ZIP code 45312 in?
45312 is in Eastern Time (UTC−5). It observes daylight saving time.