Allendale is a census-designated place (CDP) in Ottawa County in the U.S. state of Michigan.

[6] Allendale is home to the main campus of Grand Valley State University.

16.1% of all households were made up of individuals, and 3.5% had someone living alone who was 65 years of age or older.

The main campus of Grand Valley State University, founded in 1960, is located in Allendale on 1,237 acres (5.01 km2).

The university enrolls a total of just under 25,000 students on the Allendale campus and two campuses in the surrounding area, and offers over 200 areas of study, making it the largest university in the Grand Rapids region.

[11] One of the statues, installed in 1998, depicting a Confederate and Union soldier standing back-to-back with a young slave crouched between them at their feet, has been controversial for seeming to honor the Confederacy.

[12][13] During the George Floyd protests in 2020, the Allendale Township Board voted on June 30, 2020 to keep it.