La Plata is a city located in Missouri. With a 2020 population of 1,336, it is the 299th largest city in Missouri and the 9152nd largest city in the United States. La Plata is currently growing at a rate of 0.68% annually but its population has decreased by -2.20% since the most recent census, which recorded a population of 1,366 in 2010. La Plata reached it's highest population of 1,366 in 2010. Spanning over 2 miles, La Plata has a population density of 841 people per square mile.
The average household income in La Plata is $48,129 with a poverty rate of 15.57%. The median rental costs in recent years comes to $507 per month, and the median house value is $80,900. The median age in La Plata is 44.8 years, 37.4 years for males, and 47.9 years for females. For every 100 females there are 89.2 males.