Social Democracy of America

Social Democracy of America
Founded	June 15, 1897 (June 15, 1897)
Dissolved	1900
Preceded by	American Railway Union
Succeeded by	Cooperative Brotherhood Social Democratic Party of America
Ideology	Democratic socialism Utopian socialism
Political position	Left-wing
Politics of United States Political parties Elections

The Social Democracy of America (SDA), later known as the Cooperative Brotherhood, was a short lived political party in the United States that sought to combine the planting of an intentional community with political action in order to create a socialist society. It was an organizational forerunner of both the Socialist Party of America (SPA) and the Burley, Washington cooperative socialist colony.

The party split into political and colonization wings at its convention in 1898, with the political actionists establishing themselves as the Social Democratic Party of America (SDP).