Castine ZIP codes, Ohio
No ZIP code is named for Castine, OH; addresses there use a neighbouring town's name. The ZIP code covering it is 45304. Its area code is 937.
- USPS city name
- 0 ZIP codes
- Overlapping the city
- 1 more
- Population
- 71
- Area code
- 937
- County
- Darke County
- State
- Ohio
NANPA lists no telephone rate centre for Castine itself, so these are the area codes of the nearest one, Arcanum (0.0 miles). A town on an area-code boundary can differ from its neighbour.
ZIP codes covering Castine
These ZIP codes cover part of Castine but are addressed as somewhere else.
| ZIP | City | Type | Population | Median income | Median home |
|---|---|---|---|---|---|
45304 | Arcanum , OH | Standard | 7,599 | $78,125 | $190,200 |
Map of Castine ZIP codes
The ZIP codes of Castine, OH, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.
Towns near Castine
The nearest larger towns are West Manchester (341 people, 1.9 mi), Eldorado (841 people, 3.3 mi) and Ithaca (78 people, 3.8 mi).
| Town | Population | Distance |
|---|---|---|
| Arcanum | 2,912 | 5.6 mi |
| Greenville | 12,741 | 12.0 mi |
| Eaton | 8,339 | 12.5 mi |
| Brookville | 5,779 | 12.7 mi |
| Richmond, IN | 35,581 | 15.7 mi |
| West Milton | 4,771 | 15.9 mi |
| Clayton | 13,277 | 16.4 mi |
| Lake Lakengren | 3,445 | 17.2 mi |
| Englewood | 13,356 | 17.3 mi |
| Union | 7,037 | 17.6 mi |
| New Lebanon | 4,169 | 17.8 mi |
| Trotwood | 23,041 | 18.7 mi |
| Covington | 2,596 | 19.4 mi |
| Union City, IN | 3,569 | 21.2 mi |
More nearby: every ZIP code in Darke County · Ohio ZIP codes
Cite this page
zipcodes.pro. “Castine, OH ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/city/oh/castine
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