Union Lake (Michigan)

Union Lake
Union Lake
LocationOakland County, Michigan
Coordinates42°36′27″N 83°25′51″W / 42.607446°N 83.430760°W / 42.607446; -83.430760
TypeReservoir
Basin countriesUnited States
Surface area465 acres (188 ha)
Max. depth110 ft (34 m)
Surface elevation925 ft (282 m)
SettlementsCommerce Township

Union Lake is an all-sports, 465-acre (188 ha) lake in Oakland County, Michigan, United States. The lake lies within Commerce Township. It is the tenth-largest lake and third-deepest lake in Oakland County.

Union Lake is considered one of the leading walleye fishing lakes in the state.

The lake has one public boat-launch.