[3][4][5] It was first named a CDP at the 2020 census, which showed a population of 174.

[6] Philip Allen, a Revolutionary War veteran, and his children: Philip Jr., Harvey, Sidney, Pliny, Asa Keyes, and Persis, came from New York in May 1845, to settle in Allen Grove.

Sixty-five Allens traveled by canal boat, steamboat, and overland from Kenosha bringing with them material to build four houses, carpenters to build them, a minister, Bibles, and hymnals.

They established a preparatory school for Beloit College in 1856.

This article about a location in Walworth County, Wisconsin is a stub.