Neptune, Ohio
Neptune: Situated in the west-central region of Ohio, this unincorporated community is located within Mercer County along U.S.
About
Neptune is a city located in the county of Mercer in the U.S. state of Ohio.
Quick Facts about Neptune
| State | Ohio (United States) |
| County | Mercer County |
| Latitude & Longitude | 40.6031,-84.4916 |
| Time Zone | America/New_York |
| Local time | 12:25:31 (6th November 2026) |
| Weather | 54℉ Slight Chance Light Rain then Partly Sunny 7-days weather |
Geography
Neptune is located at 40°36'11"N 84°29'30"W (40.6031000, -84.4916200).
Neptune map
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Weather
A slight chance of rain between 7am and 8am. Partly sunny, with a high near 54. Northwest wind 8 to 13 mph. Chance of precipitation is 20%. New rainfa...
7-Day ForecastNearby Schools and Colleges
Schools and campuses linked to Neptune, OH. Select a name to open its map and contact details.
| Code | Name | City | ZIP |
|---|---|---|---|
| 206613 | Wright State University-Lake Campus | Celina (OH) | 45822-2952 |
Nearby Transit Stations (2)
Rail and bus stations connected to Neptune, OH. Select a station to open its map and address details.
| Code | Name | Address | Type |
|---|---|---|---|
| BYN | Bryan | Page and Lynn Street | RAIL |
| WTI | Waterloo | Lincoln and Center Street | RAIL |
Closest post offices linked to Neptune.
| Post Office Name | City | ZIP |
|---|---|---|
| Mendon Post Office | Mendon (OH) | 45862 |
Other cities in Mercer County
Cities, towns, neighborhoods & other populated places in Mercer County , OH.
| City Name | Population | Title |
|---|---|---|
| Celina | 10,438 | City in Ohio, USA |
| Coldwater | 4,562 | Town |
| Saint Henry | 2,574 | Human settlement in Mercer County, Ohio, United States of America |
| Fort Recovery | 1,470 | Village in Ohio, USA |