Davis Junction is a village in Ogle County, Illinois, United States.

Named for Jeremiah Davis, it is located where the Illinois Railway Rockford Line and the Canadian Pacific Railway (ex-Milwaukee Road/Soo Line Railroad) Chicago Subdivision intersect along Illinois Route 72.

It is the site of the Orchard Hills Landfill - one of the largest in the United States.

[4] According to the 2010 census, Davis Junction has a total area of 4.24 square miles (10.98 km2), all land.

[5] As of the census[7] of 2000, there were 491 people, 165 households, and 132 families residing in Davis Junction.