Garrett is a village in Douglas County, Illinois, United States.

[3] According to the 2010 census, Garrett has a total area of 0.13 square miles (0.34 km2), all land.

There were 62 housing units at an average density of 574.07 per square mile (221.65/km2).

22.92% of all households were made up of individuals, and 4.17% had someone living alone who was 65 years of age or older.

The nearest passenger rail service is at Illinois Terminal in Champaign or at Mattoon station, where Amtrak operates to Chicago, Carbondale, New Orleans, and other destinations.