Chester is an unincorporated community in Fremont County, Idaho, United States.

Chester is located on U.S. Route 20, 6 miles (9.7 km) northeast of St. Anthony.

Chester has a post office with ZIP code 83421.

[4] According to the Köppen climate classification,Chester has a warm-summer humid continental climate (Köppen climate classification: Dfb).

This Fremont County, Idaho state location article is a stub.