In 1869, the Indianapolis, Bloomington and Western Railway (Later the Peoria and Eastern) came through the center of town on what was then Washington Street.

The railroad remains today as the CSX Crawfordsville Sub and is the mainline from Indianapolis and Avon to Chicago.

Additionally, Terre Haute, Indianapolis and Eastern Traction Company operated interurban service through Jamestown beginning in 1912 until its demise adjacent to the Big Four railroad, the remnants still being visible north of the railroad right of way.

According to the 2010 census, Jamestown has a total area of 0.88 square miles (2.28 km2), all land.

[6] As of the 2010 United States Census,[8] there were 958 people, 394 households, and 261 families in the town.

As of the 2000 United States Census,[3] there were 886 people, 361 households, and 254 families in the town.

24.7% of all households were made up of individuals, and 9.1% had someone living alone who was 65 years of age or older.

Jamestown Municipal Utilities provide water, sewer, and power service.