Olive Branch Precinct is located in Alexander County, Illinois, United States.

[3] As of the 2020 census[2] there were 647 people, 212 households, and 161 families residing in the precinct.

There were 329 housing units at an average density of 15.23 per square mile (5.88/km2).

23.10% of all households were made up of individuals, and 20.80% had someone living alone who was 65 years of age or older.

This Alexander County, Illinois location article is a stub.