Westmoreland is a city in and the county seat of Pottawatomie County, Kansas, United States. As of the 2020 census, the population of the city was 740.

Pottawatomie County is a county located in the U.S. state of Kansas. Its county seat is Westmoreland. As of the 2020 census, the county population was 25,348. The county was named for the Potawatomi tribe.