The three USCIS Regional Offices that supervise the work of USCIS Districts and Border Patrol Sectors. The Regional Directors report to the Associate Director for Operations in USCIS Headquarters, Washington, DC. The three Regional Offices are located in (Eastern Region) Burlington, VT, (Central Region) Dallas, TX, and (Western Region) Laguna Nigel, CA.
Source: U.S. Citizenship and Immigration Services