ZIP Code 45312: Casstown, OH
County: Miami
Coordinates: 40.07160, -84.10880
ZIP Type: Standard
Time Zone: Eastern Time (ET)
Get a reliable snapshot of the Casstown, OH postal area 45312. This page summarizes county, coordinates, and local facts to help with services and location research.
| Primary City | Casstown |
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| ZIP Code | 45312 |
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| County | Miami |
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| State | OH |
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| Latitude / Longitude | 40.07160, -84.10880 |
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| ZIP Type | Standard |
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| Time Zone | Eastern Time (ET) |
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| Data Updated | 2026-01-08 |
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Maps & Useful Links
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These links show the approximate center point for ZIP 45312 (not an exact boundary).
Geographic & Administrative Context
The geographic center of ZIP code 45312 is approximately 40.07160 (latitude) and -84.10880 (longitude). This location sits within Miami, contributing to regional planning across OH.
Local Coverage Notes
ZIP codes can cover multiple neighborhoods and unincorporated areas. Use ZIP 45312 for mail delivery and general location reference in
Miami,
OH.
This ZIP may extend beyond the city core into nearby communities within Miami.
Related ZIP Codes (Nearby)
Explore other postal codes near Casstown within OH.
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Frequently Asked Questions
What is the primary city for ZIP code 45312?
The primary city for this ZIP code is Casstown, located in OH.
In which county is 45312 located?
ZIP code 45312 is situated within Miami, OH.
What are the coordinates for 45312?
The approximate center point is 40.07160 (Latitude) and -84.10880 (Longitude).
Is ZIP code 45312 active?
This page lists ZIP 45312 as Listed based on the latest refresh date shown above.
Does ZIP 45312 cover multiple areas?
Yes. Many ZIP codes cover multiple neighborhoods or nearby areas. For exact boundaries, use official mapping tools.
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Methodology & Data Notes
How we build this page: We generate this page from a structured ZIP dataset and refresh key fields (city, county, and coordinates) during scheduled updates. Coordinates represent an approximate center point, not an official boundary map.
Sources: Public ZIP reference datasets and geographic coordinate references. If you use specific sources (e.g., USPS, Census), list them on your About/Methodology page.
Page updated: 2026-01-08