Fairfield County, Federal District

Fairfield County is a county of about 210,000 residents in the Ivalician Federal District. It is located directly north of Koiwai. Despite being organized politically as a "county" by the Federal District government, it is considered a Central City of the Koiwai-Randgriz Metropolitan Area by the Population Statistics Agency, along with the adjacent cities of Koiwai and Randgriz City. Fairfield is the location of National Veterans Cemetary, Koiwai Executive Airport, Central Military Command Headquarters and numerous monuments.

Geography
The Ulei River forms the county's northern border with Koiwai.