[3] According to the 2021 census gazetteer files, Chadwick has a total area of 0.31 square miles (0.80 km2), all land.

The racial makeup of the village was 96.67% White, 0.42% African American, 0.62% Asian, and 2.29% from two or more races.

Christ Lutheran School, located in nearby Sterling, serves students of various religious backgrounds from Chadwick to Walnut and from Morrison to Dixon.

As part of the largest network of Protestant schools in the US, CLS provides an education for students from age 3 through 8th grade that is focused on all of the core academic subjects while remaining true to the Bible.

[7] Chadwick is the youngest community in Carroll County and had its beginnings circa 1853 when Jacob Isenhart built the first house on the prairie.

The company decided that 60 acres (240,000 m2) which comprised the original town site and belonged to Alexander Snow of Lanark would be an ideal location.

The first railroad station was a manure spreader on the south side of the track equipped with the necessary wiring and telegraph instruments for receiving and sending messages on the movement of trains.