Lewis and Clark County is a county located in the U.S. state of Montana. As of the 2020 census, the population was 70,973, making it the 4th least populous capital county in the United States. Its county seat and most populous city is Helena, the state capital. The numerical designation for Lewis and Clark County (used in the issuance of the state's license plates) is 5. The county was established on June 2, 1865, as one of the nine original counties of the Territory of Montana named Edgerton County in honor of Sidney Edgerton, first Governor of the Territory of Montana, and was renamed Lewis and Clark County on March 1, 1868, in honor of explorers Meriwether Lewis and William Clark. Lewis and Clark County is part of the Helena, Montana Micropolitan Statistical Area, and comprises the entirety of the Helena media market.

History

Geography According to the United States Census Bureau, the county has a total area of , of which is land and (1.1%) is water.

Communities Cities Helena (county seat) East Helena

Census-designated places

Augusta Canyon Creek Craig Gilman Helena Valley Northeast Helena Valley Northwest Helena Valley Southeast Helena Valley West Central Helena West Side Lincoln Marysville Milford Colony Rimini Unionville Wolf Creek York

Other unincorporated communities

AustinAustin MT Google Maps (accessed January 2, 2019) Bald ButteBald Butte MT Google Maps (accessed January 2, 2019) BirdseyeBirdseye MT Google Maps (accessed January 2, 2019) Canyon FerryCanyon Ferry MT. Google Maps (accessed January 2, 2019). Dearborn (partially within Cascade County)Dearborn, Lewis & Clark County MT Google Maps (accessed September 4, 2019) Fort Harrison Army Air ParkFort Harrison Army Air Park MT Google Maps (accessed January 2, 2019) Four RangeFour Range MT Google Maps (accessed January 2, 2019) Frontier TownFrontier Town MT Google Maps (accessed January 2, 2019) GearingGearing MT (accessed January 2, 2019) La Chapelle PlaceLa Chapelle Place MT Google Maps (accessed January 2, 2019) NelsonNelson MT Google Maps (accessed January 2, 2019) Silver CitySilver City MT Google Maps (accessed January 2, 2019) Stoner PlaceStoner Place MT Google Maps (accessed January 2, 2019) WeedWeed MT Google Maps (accessed January 2, 2019) WilbornWilborn MT Google Maps (accessed January 2, 2019) WinstonWinston MT Google Maps (accessed January 2, 2019)

Major highways

Adjacent counties

Teton County - north Cascade County - east Meagher County - east Broadwater County - southeast Jefferson County - south Powell County - west Flathead County - northwest

National protected areas

Flathead National Forest (part) Helena National Forest (part) Lewis and Clark National Forest (part) Lolo National Forest (part) Rocky Mountain Front Conservation Area (part)

Demographics

2020 census As of the 2020 census, the county had a population of 70,973. Of the residents, 21.5% were under the age of 18 and 19.5% were 65 years of age or older; the median age was 41.3 years. For every 100 females there were 97.0 males, and for every 100 females age 18 and over there were 95.6 males. 73.8% of residents lived in urban areas and 26.2% lived in rural areas.

The racial makeup of the county was 88.8% White, 0.4% Black or African American, 1.9% American Indian and Alaska Native, 0.8% Asian, 0.9% from some other race, and 7.1% from two or more races. Hispanic or Latino residents of any race comprised 3.7% of the population.

There were 30,204 households in the county, of which 26.2% had children under the age of 18 living with them and 25.5% had a female householder with no spouse or partner present. About 31.6% of all households were made up of individuals and 13.1% had someone living alone who was 65 years of age or older.

There were 33,599 housing units, of which 10.1% were vacant. Among occupied housing units, 68.3% were owner-occupied and 31.7% were renter-occupied. The homeowner vacancy rate was 1.4% and the rental vacancy rate was 5.1%.

2010 census As of the 2010 census, there were 63,395 people, 26,694 households, and 16,705 families in the county. The population density was . There were 30,180 housing units at an average density of . The racial makeup of the county was 94.0% white, 2.1% American Indian, 0.6% Asian, 0.3% black or African American, 0.1% Pacific islander, 0.5% from other races, and 2.4% from two or more races. Those of Hispanic or Latino origin made up 2.5% of the population. In terms of ancestry, 29.2% were German, 19.3% were Irish, 15.0% were English, 8.9% were Norwegian, and 5.1% were American.

Of the 26,694 households, 28.8% had children under the age of 18 living with them, 49.0% were married couples living together, 9.4% had a female householder with no husband present, 37.4% were non-families, and 30.7% of all households were made up of individuals. The average household size was 2.30 and the average family size was 2.87. The median age was 40.9 years.

The median income for a household in the county was $50,238 and the median income for a family was $65,573. Males had a median income of $44,476 versus $34,893 for females. The per capita income for the county was $25,894. About 5.8% of families and 9.7% of the population were below the poverty line, including 10.2% of those under age 18 and 4.1% of those age 65 or over.

Politics Lewis and Clark County leans slightly Republican, but it has voted for Democratic candidates three times since 1964. Bill Clinton won by nearly seven percentage points in 1992, but Bob Dole won by 130 votes in 1996. Barack Obama carried the county in 2008 but lost it to Mitt Romney in 2012. In recent elections, the county has voted Republican but only by narrow margins.

Education School districts include:

K–12 (Unified): - Text list

East Helena K–12 Schools Lincoln K–12 Schools

High school:

Augusta High School District Helena High School District

Elementary school:

Auchard Creek Elementary School District Augusta Elementary School District Helena Elementary School District Trinity Elementary School District Wolf Creek Elementary School District

Notable people

W. A. Boyle, president of the UMW, was born in Bald Butte, approximately two miles southwest of Marysville. Seth Bullock, sheriff of Lewis and Clark County, later sheriff of Deadwood, South Dakota. Ted Kaczynski, known as the Unabomber, lived in a cabin in Lincoln from 1971 to 1996, during which time he conducted his infamous bombing campaign. Brian Knight, Major League Baseball umpire Mike McGrath, Chief Justice of the Montana Supreme Court, former Montana Attorney General, former County Attorney of Lewis and Clark County. Johnny Miljus, major league baseball pitcher, retired to Fort Harrison in Lewis and Clark County. The governor of Montana, whose official residence is in the state capital of Helena.

See also List of counties in Montana List of lakes in Lewis and Clark County, Montana List of mountains in Lewis and Clark County, Montana National Register of Historic Places listings in Lewis and Clark County, Montana

References

External links Lewis and Clark County web site