Boundary County, Idaho

Boundary County
Boundary County
County
	Boundary County Courthouse
	Seal
	Location within the U.S. state of Idaho
	Idaho's location within the U.S.
	Coordinates: 48°47′N 116°27′W / 48.79°N 116.45°W
Country	United States
State	Idaho
Founded	January 23, 1915
Named for	Canada–United States border
Seat	Bonners Ferry
Largest city	Bonners Ferry
Area
• Total	1,278 sq mi (3,310 km2)
• Land	1,269 sq mi (3,290 km2)
• Water	9.3 sq mi (24 km2) 0.7%
Population (2020)
• Total	12,056
• Density	9.4/sq mi (3.6/km2)
Time zone	UTC−8 (Pacific)
• Summer (DST)	UTC−7 (PDT)
Congressional district	1st
Website	boundarycountyid.org

48°47′N 116°27′W / 48.79°N 116.45°W / 48.79; -116.45

Boundary County is the northernmost county of the U.S. state of Idaho. As of the 2020 census, the population was 12,056.^[1] The county seat and largest city is Bonners Ferry.^[2]

Boundary County was created by the Idaho Legislature on January 23, 1915. It is so named because it borders Canada, and is therefore the only county in Idaho with an international border. It is also only one of three counties in the United States that borders two states and a foreign country, the others being Coös County, New Hampshire and Erie County, Pennsylvania; these three counties additionally make up the entirety of the international border of their respective states, the only three counties nationwide to do so.

^ Cite error: The named reference 2020 Census was invoked but never defined (see the help page).
^ "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.

[2020_Census-1] Cite error: The named reference 2020 Census was invoked but never defined (see the help page).

[GR6-2] "Find a County". National Association of Counties. Archived from the original on May 31, 2011. Retrieved June 7, 2011.

[1]

[2]