Lamar is a city located in Oklahoma. With a 2020 population of 148, it is the 483rd largest city in Oklahoma and the 17509th largest city in the United States. Lamar is currently declining at a rate of -1.33% annually and its population has decreased by -6.33% since the most recent census, which recorded a population of 158 in 2010. Lamar reached it's highest population of 158 in 2010. Spanning over 12 miles, Lamar has a population density of 12 people per square mile.
The average household income in Lamar is $47,246 with a poverty rate of 12.21%. The median rental costs in recent years comes to - per month, and the median house value is $53,000. The median age in Lamar is 46 years, 47.8 years for males, and 42.5 years for females. For every 100 females there are 77.3 males.