Boundary County, Idaho

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

Boundary County, Idaho
Boundary County Courthouse.jpg
Boundary County Courthouse
Seal of Boundary County, Idaho
Map of Idaho highlighting Boundary County
Location in the state of Idaho
Map of the United States highlighting Idaho
Idaho's location in the U.S.
Founded January 23, 1915
Named for national border
Seat Bonners Ferry
Largest city Bonners Ferry
 • Total 1,278 sq mi (3,310 km2)
 • Land 1,269 sq mi (3,287 km2)
 • Water 9 sq mi (23 km2), 0.74%
 • (2010) 10,972
 • Density 7.8/sq mi (3.0/km²)
Congressional district 1st
Time zone Pacific: UTC-8/-7

Boundary County is a county located in the U.S. state of Idaho. As of the 2010 Census the county had a population of 10,972. The county seat and largest city is Bonners Ferry.[1]

Boundary County was created by the Idaho Legislature on January 23, 1915. It is so named because it borders Canada, the only county in Idaho with an international border. It was formed from the adjacent Bonner County.


According to the 2000 census, the county has a total area of 1,278.21 square miles (3,310.5 km2), of which 1,268.81 square miles (3,286.2 km2) (or 99.26%) is land and 9.40 square miles (24.3 km2) (or 0.74%) is water.[2]

Adjacent counties[edit]

National protected areas[edit]




Boundary County Airport is a county-owned, public-use airport located two nautical miles (3.7 km) northeast of the central business district of Bonners Ferry.[3]


Boundary County was formed on January 23, 1915 from portions of Bonner County and Kootenai County. It was named Boundary County because it lies on the border of Canada, Washington and Montana.

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. He stayed at the home of Gloria Ann White.[4] Boyce sustained himself during his stay with a series of bank robberies in the surrounding area, allegedly with technical assistance from Ms. White.

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


Historical population
Census Pop.
1920 4,474
1930 4,555 1.8%
1940 5,987 31.4%
1950 5,908 −1.3%
1960 5,809 −1.7%
1970 6,371 9.7%
1980 7,289 14.4%
1990 8,332 14.3%
2000 9,871 18.5%
2010 10,972 11.2%
Est. 2012 10,808 −1.5%
U.S. Decennial Census[5]
2012 Estimate[6]

As of the census[7] of 2000, there were 9,871 people, 3,707 households, and 2,698 families residing in the county. The population density was 8 people per square mile (3/km²). There were 4,095 housing units at an average density of 3 per square mile (1/km²). The racial makeup of the county was 95.24% White, 0.16% Black or African American, 2.02% Native American, 0.58% Asian, 0.07% Pacific Islander, 0.86% from other races, and 1.07% from two or more races. 3.39% of the population were Hispanic or Latino of any race. 21.4% were of German, 12.9% American, 12.7% English, 9.9% Irish and 6.4% Norwegian ancestry according to Census 2000.

There were 3,707 households out of which 34.10% had children under the age of 18 living with them, 61.40% were married couples living together, 7.50% had a female householder with no husband present, and 27.20% were non-families. 23.10% of all households were made up of individuals and 8.50% had someone living alone who was 65 years of age or older. The average household size was 2.61 and the average family size was 3.07.

In the county the population was spread out with 29.20% under the age of 18, 6.90% from 18 to 24, 24.40% from 25 to 44, 26.20% from 45 to 64, and 13.40% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 101.40 males. For every 100 females age 18 and over, there were 100.60 males.

The median income for a household in the county was $31,250, and the median income for a family was $36,440. Males had a median income of $31,209 versus $18,682 for females. The per capita income for the county was $14,636. About 11.50% of families and 20% of the population were below the poverty line, including 19.50% of those under age 18 and 11.40% of those age 65 or over.



Unincorporated communities[edit]


Boundary County Airport is a county-owned, public-use airport located two nautical miles (3.7 km) northeast of the central business district of Bonners Ferry.[8]


Bonners Ferry is home to KBFI AM 1450, owned by Radio Bonners Ferry, Inc.


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. The Bonners Ferry Herald website is: Former print publication The FlatLander News Magazine now online only Former editors of the Kootenai River Times now operate online only at

See also[edit]


  1. ^ "Find a County". National Association of Counties. Retrieved 2011-06-07. 
  2. ^ "Census 2000 U.S. Gazetteer Files: Counties". United States Census. Retrieved 2011-02-13. 
  3. ^ FAA Airport Master Record for 65S (Form 5010 PDF). Federal Aviation Administration. Effective 3 June 2010.
  4. ^
  5. ^ "U.S. Decennial Census". Retrieved July 25, 2013. 
  6. ^ "Annual Estimates of the Resident Population: April 1, 2010 to July 1, 2012". Retrieved July 25, 2013. 
  7. ^ "American FactFinder". United States Census Bureau. Retrieved 2008-01-31. 
  8. ^ FAA Airport Master Record for 65S (Form 5010 PDF). Federal Aviation Administration. Effective 3 June 2010.

External links[edit]