Jamesport is a city in eastern Daviess County, Missouri, United States.

[8] According to the United States Census Bureau, the city has a total area of 0.56 square miles (1.45 km2), all land.

The racial makeup of the city was 96.0% White, 0.2% Native American, 0.4% Asian, and 3.4% from two or more races.

32.2% of all households were made up of individuals, and 14.4% had someone living alone who was 65 years of age or older.

The racial makeup of the city was 99.01% White, 0.59% Native American, and 0.40% from two or more races.

29.9% of all households were made up of individuals, and 15.2% had someone living alone who was 65 years of age or older.

Public education from kindergarten through 12th grade is provided by the Tri-County R-VII School District.

The seven Amish schools in the area include Spring Hill, Country View, Hickory Hill (1-8), Meadow View (1-7), Oak Grove (1-8), and Walnut Creek (1-8), and Special Education School.