Cayuga is an unincorporated community in Livingston County, Illinois, United States, and is located northeast of Pontiac.

Never that large to begin with, all that remains is an abandoned grain elevator and depot along the Union Pacific.

Cayuga was platted by Thomas F. Norton two years later, for Corydon Weed.

[5] The average high and low temperatures are 85 °F (29 °C) and 63 °F (17 °C), respectively, during the summer and 30 °F (−1 °C) and 17 °F (−8 °C), respectively, during the winter.

This Livingston County, Illinois location article is a stub.