Plato is an incorporated village in northwestern Texas County, Missouri, United States. It is located approximately 20 miles northwest of Houston and 10 miles south of Fort Leonard Wood on Route 32. The population was 109 at the 2010 census.
According to the United States Census Bureau, the village has a total area of 0.38 square miles (0.98 km), all land.
As of the census of 2010, there were 109 people, 41 households, and 35 families residing in the village. The population density was 286.8 inhabitants per square mile (110.7/km). There were 48 housing units at an average density of 126.3 per square mile (48.8/km). The racial makeup of the village was 95.4% White, 1.8% African American, 1.8% Native American, and 0.9% from other races. Hispanic or Latino of any race were 4.6% of the population.
There were 41 households of which 36.6% had children under the age of 18 living with them, 65.9% were married couples living together, 12.2% had a female householder with no husband present, 7.3% had a male householder with no wife present, and 14.6% were non-families. 14.6% of all households were made up of individuals and 9.8% had someone living alone who was 65 years of age or older. The average household size was 2.66 and the average family size was 2.83.
The median age in the village was 36.5 years. 28.4% of residents were under the age of 18; 7.4% were between the ages of 18 and 24; 23% were from 25 to 44; 17.4% were from 45 to 64; and 23.9% were 65 years of age or older. The gender makeup of the village was 49.5% male and 50.5% female.
In March 2011 Plato was declared the 2010 mean center of United States population based on 2010 Census data.
The report of Plato as being the mean center was first reported on the Wikipedia mean center page in December 21, 2010 – nearly three months before the census officially declared it. The report received wide coverage after being reported in the Houston, Missouri Herald article and a Connecticut Public Radio broadcast. Reports subsequently stated that Alex Zakrewsky, a planner from Middlesex County, New Jersey claimed to have been the source for the Wikipedia article. Zakrewsky said he had plugged the 2010 numbers into a spreadsheet he developed using year 2000 data to calculate the center. He said that a colleague posted it to Wikipedia. Zakrewsky’s calculation placed it to the west of the community on Robidoux Creek, 3.2 miles off the official Census report which placed it on the east side of the community (37°31′03″N 92°10′23″W / 37.517534°N 92.173096°W / 37.517534; -92.173096).
The mean center has been moving southwest through Missouri about 20 to 30 miles per decade since 1980, when it was near DeSoto. In 2000, it was pinpointed as being near Edgar Springs.