Irwinton, GA

ZIP code 31042 encompasses Irwinton, the county seat of Wilkinson County in central Georgia, and surrounding rural areas. The town’s principal landmarks include the Wilkinson County Courthouse, a historic early-20th-century building, and the former Wilkinson County Jail. Both are near Irwinton’s town center, which serves as the county’s civic and administrative hub. The wider ZIP code area is characterized by farmland, wooded land, and small communities.