The large General Motors Technical Center is there. An early coal center, Warren's industries have greatly diversified. Steel, metal-forming machinery, electrical equipment, and automobile and truck parts are the principal manufactures. The Trumbull Branch of Kent State Univ. is in the city. An early lumbering center, Warren is in wooded country near oil and natural gas reserves.
Oil is refined, and electrical equipment and metal products are made.
The headquarters of Allegheny National Forest are there. Nearby are Edinboro State College and a Native American reservation. An early whaling and shipbuilding center, boats are still built there in addition to the town's light manufacturing. Warren was transferred from Massachusetts to Rhode Island in 1746.