Arrowsmith is a village in McLean County, Illinois, United States.

According to the U.S. Census Bureau, Arrowsmith has a total area of 0.20 square miles (0.52 km2), all land.

[2] The village drains east and west to tributaries of the Sangamon River in its upper, east-flowing course.

Arrowsmith was laid out on December 7, 1871, by Charles W. Holder (1808–1887) and Owen T. Reeves (1829- ?).

Reeves was a Bloomington lawyer and judge who had been colonel of the short-lived 70th Illinois Infantry during the Civil War.

Taking advantage of cold weather, John Thompson had used 32 horses to skid his store from Senex to Arrowsmith in just over two hours.

However, most of the buildings in the new town were newly constructed, and many of the early merchants were from places other than Senex.

Both grain elevators and the early stockyards were north of the tracks, but the depot was on the south side.