| Official Name: | Adamsville, Michigan |
| Settlement Type: | Unincorporated community |
| Pushpin Map: | Michigan#USA |
| Pushpin Label Position: | top |
| Pushpin Label: | Adamsville |
| Pushpin Map Caption: | Location within the state of Michigan |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Michigan |
| Subdivision Type2: | County |
| Subdivision Name2: | Cass |
| Subdivision Type3: | Township |
| Subdivision Name3: | Ontwa |
| Timezone: | Eastern (EST) |
| Utc Offset: | −5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | −4 |
| Elevation M: | 250 |
| Elevation Ft: | 820 |
| Coordinates: | 41.7853°N -85.9939°W |
| Postal Code Type: | ZIP code(s) |
| Postal Code: | 49112 |
| Area Code: | 269 |
| Blank Name: | GNIS feature ID |
| Blank Info: | 619836[1] |
| Unit Pref: | Imperial |
Adamsville is an unincorporated community in Ontwa Township within Cass County in the U.S. state of Michigan.[1]
Originally named Adamsport, the town was established in 1832. In 1838 it merged with Sage's Mill, a populated place on the other side of a creek.[2]