Lamar Heights
- County:
- Barton County
- County Seat:
- No
- Area (mi²):
- 0.783
- State:
- Missouri
Lamar Heights is a city located in Barton County, Missouri. Lamar Heights has a 2026 population of 170. Lamar Heights is currently declining at a rate of -0.58% annually but its population has increased by 0.59% since the most recent census, which recorded a population of 169 in 2020.