The crucial battle in which Silla defeated Baekje is thought to have taken place in the general area of Nonsan.

[4] The modern city of Nonsan was established in 1914, by the merger of the four counties of Yeonsan-gun, Eunjin-gun, Noseong-gun and Seoksung-gun.

Chungcheong Metropolitan Railroad is proposed, in the third phase, to set Ganggyeong Station for the starting point and connect the city with Gyeryong, Daejeon, and Cheongju.

Other important crops include strawberries, ginseng, napa cabbage,[6] watermelons, and Korean pears.

[8] Sesil [pronounced "say -shill"] company is the world's third leading producer of insects for natural pest control.

[10] Local attractions include the Eunjin Mireuk, a large standing Buddhist sculpture of the Goryeo period and its accompanying temple, Gwanchoksa,[11] as well as the Baekje Military Museum.

[14] The eight famous spots in Nonsan include Gwanchoksa, the historic sites of General Gyebaek, Tapjeong Reservoir, Ssanggyesa (Temple), and Noseong Sanseong (Fortress).

[18][19] Donam Academy, one of the nine neo-Confucian seowon established in Korea during the Choseon dynasty, is in greater Nonsan.