Oak Grove is a city located in Louisiana. With a 2020 population of 1,535, it is the 136th largest city in Louisiana and the 8628th largest city in the United States. Oak Grove is currently declining at a rate of -1.85% annually and its population has decreased by -11.12% since the most recent census, which recorded a population of 1,727 in 2010. Oak Grove reached it's highest population of 1,721 in 2010. Spanning over 2 miles, Oak Grove has a population density of 893 people per square mile.
The average household income in Oak Grove is $34,100 with a poverty rate of 31.76%. The median rental costs in recent years comes to $521 per month, and the median house value is $89,400. The median age in Oak Grove is 46.9 years, 41.9 years for males, and 50.8 years for females. For every 100 females there are 81.8 males.