History and Area of Responsibility
The Twin Falls Station was opened on January 23, 1972.

This Station originally occupied two rooms on the third floor of the Old Twin Falls County Courthouse building. On March 01, 1974, it was moved to the Gafford Building at 1061 Blue Lakes Boulevard. The office contained 600 square feet of floor space. On April 01, 1981, The office moved to the Warburg Building, at 2496 Addison Avenue east. This building contains 2,361.7 square feet of space. The building is also shared with Geological Survey, U.S. Dept. of the Interior.

Prior to 1984, the Border Patrol office and vehicles were not equipped with two-way radios, with the exception of CB radios personally owned by Patrol Agents. Now the office has a base station radio, and all vehicles assigned to Twin Falls have both Border Patrol radios and radios giving the Agents the ability to communicate with local City, County, and State Agencies in Idaho, in Northern Nevada, and all of Utah. The Twin Falls County Sheriff's Office, and Jerome County Sheriff's Office, by agreement, are dispatching the officers and logging their calls while in and around the Twin Falls area. Along with the base station radio is a repeater located in the State Police vault on Mount Harrison, south of Burley, Idaho. Long-range plans also include two more repeaters to be located around the station area, to improve the Agents ability to communicate with the office, and to link communication with the Boise and Idaho Falls offices.

For Immigration purposes, the Twin Falls Station area includes that portion of the State of Idaho lying east of a line beginning at the Montana border and U.S. Highway 93, thence south on Highway 93, thence following Alternate Highway 93 to Arco, Idaho, thence southwesterly on Alternate Highway 93, U.S. Highway 26 and Temporary Highway 20 to the junction of State Highway 23 at Carey, Idaho, thence northwesterly on Highway 23 to the junction of U.S. Highway 93, thence south to the junction of State Highway 20, thence west on Highway 20 to the western Camas County line near Hill City, Idaho, thence due south following the Camas, Gooding and Twin Falls County lines to the Nevada border.

For Border Patrol purposes, the Twin Falls Station area includes all of the State of Idaho south of the Mountain Time Zone line, which runs east and west along the Salmon River in Idaho County. The Twin Falls Station also has the Border Patrol responsibilities for the entire State of Utah.

This station's territory does not border on any part of the International Boundary.

Twin Falls is situated in about the middle of south central Idaho in the Snake River Valley. The Snake River swings in a huge semi-circle from just north of Idaho Falls, thence west through this station's entire length. The river, surrounded by plains and valleys of the river's tributaries, is the most highly developed agricultural area in the state. The elevation, some 110 miles northeast of Twin Falls, reaches a high of 12,665 feet dropping off in the southerly direction into the Snake River plains to a low of 710 feet.