The Province of Manitoba passed legislation and allowed the formation of the R.M. of St. Clements on July 7, 1883, and proclaimed it law on November 16, 1883 and deemed it effective on December 22, 1883. The boundary of the new municipality comprised of all the portion of the County of Lisgar, from the Red River to the line between Ranges 8 and 9, East, on the east, in Townships 13 to 18, both inclusive, whole or fractional with those portions of the parishes of St. Peters, St. Andrews, and St. Clements, and the Native Reserve lying east of the Red River, and Townships 19 and 20, Ranges 7 and 8 East fractional, east of Lake Winnipeg. The "town" of East Selkirk was absorbed into the Municipality of St. Clements in 1904.