Jamestown is a village in northeastern Moniteau County, Missouri, United States. The population was 330 at the 2020 census, A post office called Jamestown has been in operation since 1850.

The Assumption of the Blessed Virgin Mary Parish Historic District and Dick-Kobel Homestead are listed on the National Register of Historic Places in Jamestown.

Geography

The village is located on Missouri Route 87, approximately northeast of California, the county seat. Sandy Hook, on the Missouri River, is east on Missouri Route 179.

According to the U.S. Census Bureau, Jamestown has a total area of , of which , or 0.70%, are water.

2010 census

As of the census of 2010, there were 386 people, 161 households, and 100 families residing in the village. The population density was . There were 187 housing units at an average density of . The racial makeup of the village was 97.9% White and 2.1% from two or more races. Hispanic or Latino of any race were 1.0% of the population.

There were 161 households, of which 34.2% had children under the age of 18 living with them, 48.4% were married couples living together, 11.2% had a female householder with no husband present, 2.5% had a male householder with no wife present, and 37.9% were non-families. 36.6% of all households were made up of individuals, and 18.6% had someone living alone who was 65 years of age or older. The average household size was 2.40 and the average family size was 3.16.

The median age in the village was 36.6 years. 28.5% of residents were under the age of 18; 5.7% were between the ages of 18 and 24; 24.3% were from 25 to 44; 22% were from 45 to 64; and 19.4% were 65 years of age or older. The gender makeup of the village was 49.2% male and 50.8% female.

2000 census

As of the census