Robbinsdale is a city in Hennepin County, Minnesota, United States. Its population was 14,646 at the 2020 census. The city is in the Minneap…Robbinsdale is a city in Hennepin County, Minnesota, United States. Its population was 14,646 at the 2020 census. The city is in the Minneapolis–Saint Paul metropolitan area and is adjacent to the northwest portion of Minneapolis.