Federal Agencies in MN Federal Agencies operating within MN. Federal Agencies in MN Bureau of ATF Saint Paul, Ramsey County Federal Bureau of Investigation Brooklyn Center, Hennepin County Federal Emergency Mgmt Agency Saint Paul, Ramsey County Homeland Security Investigations (HSI) Fort Snelling, Hennepin County County Internal Revenue Service Saint Paul, Ramsey County US Border Patrol International Falls, Koochiching County US Border Patrol Warroad, Roseau County US Border Patrol Grand Marais, Cook County US Border Patrol Duluth, St. Louis County US Marshals Service Minneapolis, Hennepin County US Secret Service Minneapolis, Hennepin County
