Lamar, MO

View of Lamar, MO
Image credit: Kbh3rd / CC BY 4.0
Population
4,337
U.S. Census Population Estimates Program · 2025
Elevation
960 ft
Median Home Value
$117,200
U.S. Census American Community Survey 5-Year · 2024
Median Rent
$832/mo
U.S. Census American Community Survey 5-Year · 2024
Median Income
$36,705
U.S. Census American Community Survey 5-Year · 2024

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Lamar in context.

About Lamar

Lamar is a city and the county seat of Barton County, Missouri, situated along the North Fork of the Spring River. Widely celebrated as the birthplace of President Harry S. Truman and platted in 1856, the agricultural and manufacturing community of approximately 4,284 is served by the Lamar R-I School District locally.

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