Grantsburg is an unincorporated community and Census-designated place in Union Township, Crawford County, Indiana.

[3] The Grantsburg post office (spelled Grantsburgh in early years) was established in 1854.

[4] John V. Grant was an early postmaster.

[5] The United States Census Bureau delineated Grantsburg as a census designated place in the 2022 American Community Survey.

This Crawford County, Indiana location article is a stub.