The outcome of the battle essentially cemented Union control of Missouri and northern Arkansas. The battle was one of the few during the war in which a Confederate army outnumbered its Union opponent.
The battlefield at Pea Ridge is now Pea Ridge National Military Park, founded in 1956. The park is known as one of the best preserved Civil War battlefields. The park also includes a 2.5-mile (4-km) section of the Trail of Tears.