- Overview of Steinbach Steinbach was founded in the late 19th century as a farming-service community. Since then, it has grown to be a major urban and service centre, with a trade area that comprises the majority of southeastern Manitoba. Though predominantly Mennonite, many nationalities are represented in the area possessing a strong work ethic. The City of Steinbach is a community of 9, 000 ...www.steinbachchamberofcommerce.com