thumb|A 1906 [[cadastral map of Pine Grove Township, showing property lines and names of rural landowners]]

Pine Grove Township is a civil township of Van Buren County in the U.S. state of Michigan. The population was 2,994 at the 2020 census.

Communities

  • The city of Gobles straddles the western boundary of the township with Bloomingdale Township, but as a city, it is administratively autonomous of both townships.
  • Kendall is an unincorporated community and the township seat. It is located between sections 22 and 27 at . The ZIP Code is 49062. It is named for Lucius B. Kendall, who settled there in 1864 and built up a successful company producing Barrel staves from the surrounding oak forests with a steam saw-mill. In 1870, Kendall was a principal player in pushing for the construction of a railroad line between Kalamazoo and South Haven through the town, which became a station on the South Haven division of the Michigan Central Railroad. A post office was also established in 1870, in which Kendall and his associates platted the village of Kendall. The Panic of 1873 ruined many of the businesses in town, causing a decline in population from a high of about 400 to about 250 in 1880.
  • Mentha is a ghost town, formerly known as a major source for peppermint for the production of mint oil by the company of Albert M. Todd. It was located at .
  • North Lake is an unincorporated community at on the boundary with Almena Township.
  • Pine Grove Mills is a small settlement about a mile east of Gobles. It was platted February 4, 1870, receiving a post office in 1857 with David D. Wise as postmaster. Now a private residence, the post office still stands today. The railroad extension from Kalamazoo reached Pine Grove Mills on January 10, 1870. The first buildings were simple log cabins, often with dirt floors. The first framed dwelling was erected in 1856 by Wise, Merrill & Co. and was used for housing their employees. Lumber was the main industry in this locality, with farming supplanting it within the first few decades. Prominent early settlers include Daniel B. Brown, David Wise, Benjamin Deputy, David O. Everest and Chauncey Wise.

The Kal-Haven Trail runs through the township on a generally east–west line, going through Mentha, Kendall, Pine Grove Mills and Gobles.

Geography

According to the United States Census Bureau, the township has a total area of , of which is land and (1.63%) is water.

Demographics

As of the census