Santa Rosa is an unincorporated community in northeast DeKalb County, in the U.S. state of Missouri. [1]
The community sits adjacent to the DeKalb-Daviess county line on the north side of Missouri Route E. Grindstone Creek flows past one-quarter mile to the east. [2]
A post office called Santa Rosa was established in 1875, and remained in operation until 1954. [3] Besides the post office the community had a schoolhouse, the Santa Rosa School. [4]
Santa Rosa was incorporated during the 1930 and 1940 US census. Its population then was 122 and 141, respectively. [5]