Everett R. Brown Sr., former Southwest area director of the Rural Electrification Administration, died Thursday in Fairfax Hospital after a heart attack. He was 68.

Mr. Brown, who was born in Aurora, Ind., moved to Fairfax in 1950. He became an area director of the REA, which is part of the U.S. Department of Agriculture, after five years as an REA field representative.

Mr. Brown was also director of the Hoosier (Indiana) Energy and Electrical Cooperative in Bloomington, a member of the Indiana Power Commission and a member of the Federal Power Commission.

He retired in 1971 after 28 years of service, mostly as a load study specialist.

Mr. Brown attended Canterbury College in Danville, Ind. He was a member of Friendship United Methodist Church in Fairfax. A 32d degree Mason, he was a charter member of Kena Temple of the Shrine in Alexandria.

He is survived by his wife, Gayle Marie of Fairfax: five daughters, Jeanine Siprelle of Vienna, Dulcey Fowler and Linda Hundley, both of Charlottesville, Va., Joyce Hochrein of Severna Park, and Paula Pendergast of Stamford, Conn.; a son, Everett Jr., of Fairfax; a brother, Harold, of Cincinnati, and two sisters, Delores Fogle, of Mount Vernon, Ohio, and Mary Casey, of Indianapolis.