Wayne County was formed within the Northwest Territory covering the Lower Peninsula.

[6] In 1838 the first schoolhouse was built in Flint Township in Section 23 on the bank of Swartz Creek.

[8] The unincorporated village of Otterburn was given a station on the Grand Trunk Railroad in 1882 then a Post Office on August 27, 1887.

[12] In 1953, the Township began incorporation discussions as the City of Westhaven, but that possibility was later defeated.

[13] The metro government proposal was released in 1957 and petition began circulating the next year.

The Township lost the Otterburn area to the City of Swartz Creek upon its incorporation[12] in 1959.

The incorporation question failed, while the then Township Supervisor Tom Mansour won the mayoral election.

[14] In August 1970, Genesee Valley Center opened at Miller and Linden Roads.

[15] According to the United States Census Bureau, the township has a total area of 23.6 square miles (61 km2), all land.

Bishop International Airport is adjacent to and occupies a portion of Flint Township.

In addition, three major highways—I-75, I-69 and US 23—which run through the township intersect one mile (1.6 km) from Bishop Airport.