Chatsworth is an incorporated town in Livingston County, Illinois, United States.

U.S. Route 24 runs through the town south of the town center, leading east 15 miles (24 km) to Interstate 57 at Gilman and west 23 miles (37 km) to Interstate 55 at Chenoa.

According to the 2020 census, Chatsworth has a total area of 2.8 square miles (7.25 km2), all land.

Secor was a member of the Board of Directors of the company that was building the Peoria and Oquawka Railroad.

[10] However, the plan used was virtually identical to that used at Fairbury, including the street names, and very similar to that used at Gridley, El Paso and other places along the Peoria and Oquawka Railroad.

Like these other towns, Chatsworth was centered on a long narrow depot grounds rather than a public square.

The plat of the original town was exceptionally large, covering 160 acres (0.65 km2) and consisting of 42 blocks, most located north of the railroad.

[12] The first building was a 1+1⁄2-story frame structure used as both a residence and store, which was built by Charles D. Brooks and Truman Brockway of New York.

In March 1924 seventy to one hundred men arrived in town to work on a paved highway, at first known as the Corn Belt Trail, which soon became Route 24 and formed an important east-west route across Illinois.