Westphalia
- County:
- Anderson County
- County Seat:
- No
- Area (mi²):
- 0.198
- State:
- Kansas
Westphalia is a city located in Anderson County, Kansas. Westphalia has a 2026 population of 132. Westphalia is currently growing at a rate of 2.33% annually and its population has increased by 2.33% since the most recent census, which recorded a population of 129 in 2020.