It was named Boundary County because it lies on the border of Canada, Washington and Montana.

[6] Settlement of the area started with the establishment of Bonners Ferry on the Kootenai River in 1864.

At that point settlement was still sparse with small ranching and mining operations, but an expanding timber economy.

[7] By 1900, other areas started to develop with the Boulder (now Kootenai), Boundary (now Copeland), and Naples precincts first listed in the U.S. Census of that year.

[8][9] In 1980, convicted spy Christopher John Boyce found refuge in Boundary County, for a few months, after his escape from the Lompoc Federal Correctional Complex.

[10] Boyce sustained himself during his stay with a series of bank robberies in the surrounding area, allegedly with technical assistance from White.

In 1992, Boundary County was the scene of the Ruby Ridge siege by 350–400 armed federal agents against Randy Weaver and his family.

As of the 2010 United States census, there were 10,972 people, 4,421 households, and 2,976 families living in the county.

[20] In terms of ancestry, 22.5% were German, 12.8% were English, 11.2% were Irish, 7.4% were American, 5.9% were Norwegian, 5.4% were Dutch, and 5.1% were Scottish.

A local translator district provides broadcast television stations from Spokane, WA.

While licensed to Bonner's Ferry and its transmitter site is there, KBFI shares studios and offices with its sister stations (KSPT, KIBR, and KPND), at 327 Marion Avenue in Sandpoint, Idaho.

Bonners Ferry is served by a single newspaper and several online news outlets.

The weekly Bonners Ferry Herald, owned by Hagadone Publishing is the official paper of record.