Eagleville is a census-designated place in Modoc County, California. It is located 25 miles (40 km) east-southeast of Alturas, at an elevation of 4642 feet (1415 m). The population was 59 at the 2010 census.Located in a part of Modoc County called Surprise Valley, Eagleville is a small community south of Cedarville. The ZIP code is 96110.Wired telephone numbers in the community follow the format (530) 279-2xxx or 279-6xxx and appear to be served out of the Cedarville exchange.