Weldon is a village in Nixon Township, DeWitt County, Illinois, United States.

[3] According to the 2010 census, Weldon has a total area of 0.27 square miles (0.70 km2), all land.

35.09% of all households were made up of individuals, and 15.20% had someone living alone who was 65 years of age or older.

De Land-Weldon is a school district that services both towns and the surrounding areas.

It is the smallest public high school in the state with a total enrollment of 50.