The Federal Bureau of Investigation (FBI) operates 56 field offices in major cities throughout the United States. Many of these offices are further subdivided into smaller resident agencies that have jurisdiction over a specific area. These resident agencies are considered to be part of the primary field offices. FBI headquarters, located in Washington, D.C., controls the flow of the agents and support staff that work out of the field offices across the country. Each field office is overseen by a Special Agent in Charge (SAC), except those located in Los Angeles, New York City, and Washington, D.C., which due to their large size are each managed by an Assistant Director in Charge (ADIC), assisted by SACs responsible for specific programs or departments. The FBI also has offices overseas otherwise known as legal attachés. The FBI international offices are usually in American embassies.
Alabama
Birmingham: Serves the counties of Bibb, DeKalb, Lauderdale, St. Clair, Blount, Etowah, Lawrence, Shelby, Calhoun, Fayette, Limestone, Sumter, Cherokee, Franklin, Madison, Talladega, Clay, Greene, Marion, Tuscaloosa, Cleburne, Jackson, Marshall, Walker, Colbert, Jefferson, Morgan, Winston, Cullman, Lamar and Pickens. Four Resident Agencies in Florence, Gadsden, Huntsville and Tuscaloosa. Mobile: Serves the counties of Autauga, Coffee, Geneva, Monroe, Baldwin, Conecuh, Hale, Montgomery, Barbour, Coosa, Henry, Perry, Bullock, Covington, Houston, Pike, Butler, Crenshaw, Lee, Randolph, Chambers, Dale, Lowndes, Russell, Chilton, Dallas, Macon, Tallapoosa, Choctaw, Elmore, Marengo, Washington, Clarke, Escambia, Mobile and Wilcox. Resident Agencies in Auburn, Dothan, Monroeville, Montgomery, and Selma.
Alaska
Anchorage: Entire state. Resident Agencies in Fairbanks and Juneau.
Arizona
Phoenix: All counties except part of the Navajo Nation within Apache County which is served by Albuquerque, New Mexico. Resident agencies in Flagstaff, Lake Havasu City, Lakeside, Sierra Vista, Tucson, and Yuma.
Arkansas
Little Rock: Entire state. Resident agencies in El Dorado, Fayetteville, Fort Smith, Hot Springs, Jonesboro, Marion, Pine Bluff and Texarkana.
California
Los Angeles: Serves the counties of Los Angeles, Orange, San Bernardino, San Luis Obispo, Santa Barbara, Riverside, and Ventura. Resident Agencies in Lancaster, LAX, Long Beach, Orange, Palm Springs, Riverside, Santa Maria, Ventura, Victorville and West Covina. Located inside the Wilshire Federal Building. Sacramento: Serves Yosemite National Park and the counties of Alpine, Amador, Butte, Calaveras, Colusa, El Dorado, Fresno, Glenn, Inyo, Kern, Kings, Lassen, Madera, Merced, Mariposa, Modoc, Mono, Nevada, Placer, Plumas, Sacramento, San Joaquin, Shasta, Sierra, Siskiyou, Solano, Stanislaus, Sutter, Tehama, Trinity, Tulare, Tuolumne, Yolo, and Yuba. Resident agencies in Bakersfield, Chico, Fairfield, Fresno, Redding, South Lake Tahoe, and Stockton San Diego: Serves the counties of Imperial and San Diego. Resident agencies in Imperial and North County. San Francisco: Serves the counties of: Alameda, Contra Costa, Del Norte, Humboldt, Lake, Marin, Mendocino, Monterey, Napa, San Benito, San Francisco, Santa Clara, Santa Cruz, San Mateo and Sonoma. Resident agencies in Concord, Fortuna, Monterey Bay, Oakland, Palo Alto, San Jose and Santa Rosa.
Colorado
Denver: Serves all counties and the state of Wyoming. Resident agencies in Casper, Cheyenne, Colorado Springs, Durango, Fort Collins, Glenwood Springs, Grand Junction, Jackson Hole, Lander and Pueblo.
Connecticut
New Haven: Entire state. Resident agencies in Bridgeport, Meriden and New London.
Florida
Jacksonville: Serves the counties of Alachua, Baker, Bay, Bradford, Calhoun, Citrus, Clay, Columbia, Dixie, Duval, Escambia, Flagler, Franklin, Gadsden, Gilchrist, Gulf, Hamilton, Holmes, Jackson, Jefferson, Lafayette, Lake, Leon, Levy, Liberty, Madison, Marion, Nassau, Okaloosa, Putnam, St. Johns, Santa Rosa, Sumter, Suwannee, Taylor, Union, Volusia, Wakulla, Walton, and Washington. Resident agencies in Daytona Beach, Fort Walton Beach, Gainesville, Ocala, Panama City, Pensacola, and Tallahassee. Miami (Miramar): Serves the counties of Broward, Highlands, Indian River, Monroe, Palm Beach, Miami-Dade, Martin, Okeechobee, and St. Lucie. Resident agencies in Fort Pierce, Homestead, Key West and West Palm Beach. Tampa : Serves the counties of Brevard, Charlotte, Collier, De Soto, Glades, Hardee, Hendry, Hernando, Hillsborough, Lee, Manatee, Orange, Osceola, Pasco, Pinellas, Polk, Sarasota, and Seminole. Resident agencies in Clearwater, Fort Myers, Lakeland, Melbourne, Naples, Orlando and Sarasota.