Bryantsburg is an unincorporated community in Buchanan County, Iowa, United States.

[12] In 1931, a major hailstorm in northeast Iowa damaged crops and farm products in the Bryantsburg area, as well as in Swisher, Shueyville, Vinton, Fairfax, and LaPorte City.

The path of the storm began in Bryantsburg, and the damage in Buchanan County was extensive, accounted as a near total loss of crops.

Poultry and pigs were also killed in the storm, which ranged from one to four miles wide in Buchanan County.

[4] By the 1970s, Bryantsburg was included in a list of "dying towns" in the Waterloo Courier, alongside Kiene, Albany, Buck Grove, Grove Hill, Abbott, Irma, Floyd Crossing, Kains Siding, Dalby, Merson, Jubilee, and Deerfield.