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Bonner County, Idaho facts for kids

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Bonner County
Bonner County Courthouse in Sandpoint
Bonner County Courthouse in Sandpoint
Official seal of Bonner County
Map of Idaho highlighting Bonner County
Location within the U.S. state of Idaho
Map of the United States highlighting Idaho
Idaho's location within the U.S.
Country  United States
State  Idaho
Founded February 21, 1907
Named for Edwin L. Bonner
Seat Sandpoint
Largest city Sandpoint
 • Total 1,919 sq mi (4,970 km2)
 • Land 1,735 sq mi (4,490 km2)
 • Water 185 sq mi (480 km2)  9.6%
 • Total 47,110
 • Density 24.549/sq mi (9.479/km2)
Time zone UTC−8 (Pacific)
 • Summer (DST) UTC−7 (PDT)
Congressional district 1st

Bonner County is a county in the northern part of the U.S. state of Idaho. As of the 2020 census, the population was 47,110. The county seat and largest city is Sandpoint. Partitioned from Kootenai County and established in 1907, it was named for Edwin L. Bonner, a ferry operator.

Bonner County comprises the Sandpoint, Idaho Micropolitan Statistical Area.


Bonner County was formed on February 21, 1907. It was named for travel entrepreneur Edwin L. Bonner, a ferry operator.

In 1864, the Idaho Legislature created the counties of Lah-Toh and Kootenai. Kootenai County initially covered all of present-day Bonner and Boundary counties and a portion of present-day Kootenai County. It also overlapped a portion of the existing boundary of Shoshone County. Sin-na-ac-qua-teen, a trading post located in present-day Bonner County on the south shore of the Pend Oreille River near Laclede, was named county seat. The government of Kootenai failed to organize due to lack of settlement within the county boundary. In 1867, the legislature repealed the act creating the two counties and instead consolidated both into a county retaining the name of Kootenai. Rathdrum became the county seat when Kootenai County finally organized in 1881.

The tiny portion of Bonner County located south of the 48th parallel and east of Shoshone County was not located in any of Idaho's counties from 1863 to 1907, the longest time frame any non-county area existed in the State of Idaho. The Idaho panhandle north of the Clearwater River's basin was in Spokane County, Washington prior to Idaho's creation as a territory in 1863. When Idaho defined its original counties by February, 1864, it attached the former Spokane County area to Nez Perce County for judicial purposes. Legislators creating Kootenai County in December 1864 lacked knowledge of the geography of the area and failed to fully include the non-county area within the county boundaries of Kootenai or Lah-Toh. The non-county area was fully included within Bonner County when it was formed in 1907.

Boundary County was formed from Bonner County in 1915.

Presidential election results
Year Democrat Republican
2016 27.78% 5,819 63.71% 13,343
2012 34.57% 6,500 60.45% 11,367
2008 40.10% 7,840 57.01% 11,145
2004 37.60% 6,649 60.49% 10,697
2000 29.70% 4,318 61.53% 8,945


According to the U.S. Census Bureau, the county has a total area of 1,919 square miles (4,970 km2), of which 1,735 square miles (4,490 km2) is land and 185 square miles (480 km2) (9.6%) is water.

Adjacent counties

National protected areas

  • Pacific Northwest National Scenic Trail (part)
  • Coeur d'Alene National Forest (part)
  • Kaniksu National Forest (part)
  • Kootenai National Forest (part)

Major highways

  • US 2.svg US 2
  • US 95.svg US 95
  • ID-41.svg SH-41
  • ID-57.svg SH-57
  • ID-200.svg SH-200

Rivers and lakes

Kelso Lake


Historical population
Census Pop.
1910 13,588
1920 12,957 −4.6%
1930 13,152 1.5%
1940 15,667 19.1%
1950 14,853 −5.2%
1960 15,587 4.9%
1970 15,560 −0.2%
1980 24,163 55.3%
1990 26,622 10.2%
2000 36,835 38.4%
2010 40,877 11.0%
2020 47,110 15.2%
U.S. Decennial Census
1790–1960 1900–1990
1990–2000 2010–2020

2010 census

As of the 2010 United States Census, there were 40,877 people, 17,100 households, and 11,591 families living in the county. The population density was 23.6 inhabitants per square mile (9.1/km2). There were 24,669 housing units at an average density of 14.2 per square mile (5.5/km2). The racial makeup of the county was 96.0% white, 0.8% American Indian, 0.5% Asian, 0.1% Pacific islander, 0.1% black or African American, 0.4% from other races, and 2.1% from two or more races. Those of Hispanic or Latino origin made up 2.2% of the population. In terms of ancestry, 25.4% were German, 15.3% were Irish, 15.2% were English, 6.2% were Norwegian, and 5.0% were American.

Of the 17,100 households, 27.2% had children under the age of 18 living with them, 55.3% were married couples living together, 7.9% had a female householder with no husband present, 32.2% were non-families, and 26.0% of all households were made up of individuals. The average household size was 2.37 and the average family size was 2.82. The median age was 45.8 years.

The median income for a household in the county was $41,943 and the median income for a family was $51,377. Males had a median income of $40,076 versus $30,829 for females. The per capita income for the county was $24,745. About 10.1% of families and 14.3% of the population were below the poverty line, including 22.3% of those under age 18 and 6.7% of those age 65 or over.



Census-designated place

Unincorporated communities

Ski area

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