| Official Name: | Newtonville |
| Settlement Type: | Unincorporated community |
| Subdivision Type: | Country |
| Subdivision Name: | Canada |
| Subdivision Type1: | Province |
| Subdivision Name1: | Ontario |
| Subdivision Type2: | Regional municipality |
| Subdivision Name2: | Durham |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Clarington |
| Population As Of: | 2016 |
| Population Total: | 576 |
| Timezone: | EST |
| Utc Offset: | -5 |
| Timezone Dst: | EDT |
| Utc Offset Dst: | -4 |
| Coordinates: | 43.9392°N -78.4925°W |
| Elevation M: | 150 |
| Postal Code Type: | Forward sortation area |
| Postal Code: | L0A 1J0 |
| Area Code: | 905 and 289 |
| Blank Name: | NTS Map |
| Blank Info: | 030M16 |
| Blank1 Name: | GNBC Code |
| Blank1 Info: | FDORQ[1] |
Newtonville is a dispersed rural community in the Municipality of Clarington, Durham Region, Ontario, Canada.[1] [2] It is located about 30km (20miles) east of Oshawa and about 10km (10miles) west of Port Hope on the former Highway 2.
Newtonville is the most easterly community in Clarington (and in Durham Region), and therefore forms the eastern end of the Greater Toronto Area. The community was formerly part of the southeastern part of the township of Clarke until 1973.
Newtonville's first Post office opened in 1835 when the village was known as both "Clarke" (named after Clarke Township, which it was part of) and "Newton".[3]
In the 2021 Census of Population conducted by Statistics Canada, Newtonville had a population of 629 living in 212 of its 214 total private dwellings, a change of from its 2016 population of 576. With a land area of, it had a population density of in 2021.[4]