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.
The median age in Lamar Heights is 32.3 years: 30.5 years for males, and 51.3 years for females. For every 100 females there are 158.1 males.