Haslett is a census-designated place (CDP) in Ingham County in the U.S. state of Michigan. It is located mostly within Meridian Charter Township behind a little portion extending east into Williamstown Township. The population was 19,220 at the 2010 census. Haslett contains its own learned district, as skillfully as its own publish office once the 48840 ZIP Code.

Haslett is named after James and Sarah Haslett, a couple who founded the Nemoka Spiritualist Camp on the shore of Pine Lake (Original broadcast for Lake Lansing). By the superior 1800s, thousands of spiritualists descended on Haslett Park for summer meetings, readings, lectures, and seances. Mr. Haslett had hoped to confirm his camp as the National Headquarters for the spiritualist movement. His untimely death in 1891 and the decline of the spiritualist occupation cause his widow to sell the house to the Haslett Park Association in 1898. The new owners transformed the land into a summer recreational destination, and eventually, a figure-8 wooden roller coaster and extra carnival rides were added, thus establishing what became known as Lake Lansing Amusement Park. With the railroad established, the Lansing Trolley line extra rails correspondingly that people could travel from the disclose capital, Lansing, to the new recreation center. Holding to this tradition, Haslett is host to Lake Lansing Parks North and South as skillfully as a share of the Inter-Urban Pathway and numerous other little parks and recreation facilities.

The city of Haslet, Texas, is named after Haslett, Michigan (note that the Texas community is spelled afterward one ‘t’). The Texas town of Haslet normal its read out from a railroad worker who relocated to Texas from Michigan in the late 1800s.

According to the United States Census Bureau, the CDP has a total area of 16.27 square miles (42.14 km), of which 15.37 square miles (39.81 km²) is home and 0.90 square miles (2.33 km) (5.53%) is water.