Communities Carsonville is a village along M-46 at the southern boundary of the township with Washington Township and lies partially within both townships. The Carsonville ZIP code 48419 serves most of the southern portion of the township.48419 5-Digit ZCTA, 484 3-Digit ZCTA - Reference Map - American FactFinder, U.S. Census Bureau, 2000 Census Deckerville is a village to the north in Marion Township and the Deckerville ZIP code 49427 serves areas in the northern part of the township.48427 5-Digit ZCTA, 484 3-Digit ZCTA - Reference Map - American FactFinder, U.S. Census Bureau, 2000 Census Downington is a historical settlement on Ruth Road along the northern boundary with Marion Township. William Bancroft of Port Huron built a store here in 1862. It was named for Alonzo Downing, another businessman who served as supervisor of Marion Township from 1873 to 1876. It was given a station on the Port Huron and Northwestern Railway in 1880 and a post office was established in April 1883. McGregor is an unincorporated community in the northwest part of the township at The settlement was founded by Adam McGregor in 1859 and named for him. It was a station on the Flint and Pere Marquette Railroad. A post office operated from September 1894 until April 1958.
Communities Carsonville is a village along M-46 at the southern boundary of the township with Washington Township and lies partially within both townships. The Carsonville ZIP code 48419 serves most of the southern portion of the township.48419 5-Digit ZCTA, 484 3-Digit ZCTA - Reference Map - American FactFinder, U.S. Census Bureau, 2000 Census Deckerville is a village to the north in Marion Township and the Deckerville ZIP code 49427 serves areas in the northern part of the township.48427 5-Digit ZCTA, 484 3-Digit ZCTA - Reference Map - American FactFinder, U.S. Census Bureau, 2000 Census Downington is a historical settlement on Ruth Road along the northern boundary with Marion Township. William Bancroft of Port Huron built a store here in 1862. It was named for Alonzo Downing, another businessman who served as supervisor of Marion Township from 1873 to 1876. It was given a station on the Port Huron and Northwestern Railway in 1880 and a post office was established in April 1883. McGregor is an unincorporated community in the northwest part of the township at The settlement was founded by Adam McGregor in 1859 and named for him. It was a station on the Flint and Pere Marquette Railroad. A post office operated from September 1894 until April 1958.