West Lafayette is a city in Tippecanoe County, Indiana, United States, approximately 65 miles (105 km) northwest of the state capital of Indianapolis and 113 miles (182 km) southeast of Chicago. West Lafayette is directly across the Wabash River from its sister city, Lafayette. As of the 2020 census, its population was 44,595. Home to Purdue University, it is a college town and the most densely populated city in Indiana.

Tippecanoe County is located in the west-central portion of the U.S. state of Indiana about 22 miles east of the Illinois state line and less than 50 miles from the Chicago and the Indianapolis metro areas. As of the 2020 census, the population was 186,251. The county seat and largest city is Lafayette. It was created in 1826 from Wabash County portion of New Purchase and unorganized territory.