He attended grades 1-8 at Oak Mound School in Kragnes Township, Minnesota and graduated from Moorhead High School in Moorhead, Minnesota in 1948. While growing up, he was active in the Oak Mound 4-H Club, Oak Mound Parent-Teacher Association, and the Oak Mound Community Club. Following high school, he worked as a farmer raising Purebred Shorthorns and a family. He married Virginia Stangeland and fathered 7 children, 2 girls and 5 boys. Stangeland was a long-time member of Our Savior's Lutheran Church. Stangeland was a delegate to the Minnesota State Republican conventions from 1964 to 1968.
1977 election
Stangeland sought election as a Republican to the 95th congress in a special election on February 22, 1977, to fill the vacancy caused by the resignation of Robert Bergland, who left the House to become U.S. Secretary of Agriculture. In the republican primary on February 8, Stangeland defeated Richard Franson, "a frequent candidate who lived in Minneapolis, far from the district," with 97 percent of the vote. Stangeland ran against the Democratic-Farmer-Labor Party nominee Michael J. Sullivan, a former Walter Mondale aide, in the general election. During the campaign one controversy erupted when Roman Catholic bishopVictor Hermann Balke encouraged voters in the Diocese of Crookston to vote for Sullivan, whom he described as "very pro-church," and against Stangeland, whom he described as having a "very negative" voting record in the state house. Stangeland campaigned "on the theme that the heavily rural northwestern Minnesota needed another farmer, like Mr. Bergland, in Congress" and won the election, receiving 71,251 votes to Sullivan's 43,467.. Stangeland's victory was a political upset. The New York Times headline the day after the election read "Minnesota victory elates Republicans" and attributed Stangeland's success to "his lifelong residence in the district, his roots as a farmer in a mostly rural area, and his identification as a Lutheran in an area that is predominantly Protestant". and said Sullivan had been "handicapped by his Roman Catholic faith and his reliance on the support of name Democrats rather than grass-roots organizations." In January 1990 it was reported that Stangeland had made several hundred long distance phone calls from 1986 to 1987 on his Minnesota House credit card to and from the residences of a female lobbyist from Virginia. Stangeland admitted that he had made the calls, acknowledged that some of them may have been personal, but denied having a romantic relationship with the woman. Nonetheless, his popularity sharply dropped and Stangeland lost the election to DemocraticState SenatorCollin Peterson, who had previously run against him in 1984, nearly defeating him in 1986.
Death
Strangeland died peacefully at his home on Lake Lizzie in Northwestern Minnesota, outside of Detroit Lakes, on July 2, 2013.