Yellowstone County is the most populous

county A county is a geographic region of a country used for administrative or other purposes Chambers Dictionary, L. Brookes (ed.), 2005, Chambers Harrap Publishers Ltd, Edinburgh in certain modern nations. The term is derived from the Old French ...

in the

U.S. state In the United States, a state is a constituent political entity, of which there are 50. Bound together in a political union, each state holds governmental jurisdiction over a separate and defined geographic territory where it shares its sove ...

Montana Montana () is a state in the Mountain West division of the Western United States. It is bordered by Idaho to the west, North Dakota and South Dakota to the east, Wyoming to the south, and the Canadian provinces of Alberta, British Columb ...

. As of the 2020 census, the population was 164,731. Its

county seat A county seat is an administrative center, seat of government, or capital city of a county or civil parish. The term is in use in Canada, China, Hungary, Romania, Taiwan, and the United States. The equivalent term shire town is used in the US ...

Billings Billings is the largest city in the U.S. state of Montana, with a population of 117,116 as of the 2020 census. Located in the south-central portion of the state, it is the seat of Yellowstone County and the principal city of the Billings Metro ...

. Yellowstone County is named for the

Yellowstone River The Yellowstone River is a tributary of the Missouri River, approximately long, in the Western United States. Considered the principal tributary of upper Missouri, via its own tributaries it drains an area with headwaters across the mountains a ...

which roughly bisects the county, flowing southwest to northeast. The river in turn was named after the yellow Sandstone cliffs in what is now Yellowstone County. Yellowstone County is included in the Billings, Montana

Metropolitan Statistical Area In the United States, a metropolitan statistical area (MSA) is a geographical region with a relatively high population density at its core and close economic ties throughout the area. Such regions are neither legally incorporated as a city or tow ...

Geography

According to the

United States Census Bureau The United States Census Bureau (USCB), officially the Bureau of the Census, is a principal agency of the U.S. Federal Statistical System, responsible for producing data about the American people and economy. The Census Bureau is part of th ...

, the county has a total area of , of which is land and (0.6%) is water.

Major highways

* * * * * * * * *

Adjacent counties

* Musselshell County – north * Rosebud County – northeast * Treasure County – east * Big Horn County – southeast * Carbon County – southwest * Stillwater County – west * Golden Valley County – northwest

National protected areas

* Nez Perce National Historical Park (part) *

Pompeys Pillar National Monument Pompeys Pillar National Monument is a rock formation located in south central Montana, United States. Designated a National Monument on January 17, 2001, and managed by the U.S. Bureau of Land Management in conjunction with The Friends of Pompey ...

Demographics

2000 census

As of the

2000 United States census The United States census of 2000, conducted by the Census Bureau, determined the resident population of the United States on April 1, 2000, to be 281,421,906, an increase of 13.2 percent over the 248,709,873 people enumerated during the 1990 c ...

, there were 129,352 people, 52,084 households, and 34,219 families in the county. The

population density Population density (in agriculture: standing stock or plant density) is a measurement of population per unit land area. It is mostly applied to humans, but sometimes to other living organisms too. It is a key geographical term.Matt RosenberPopu ...

was 49 people per square mile (19/km²). There were 54,563 housing units at an average density of 21 per square mile (8/km²). The racial makeup of the county was 92.78% White, 0.45% Black or African American, 3.05% Native American, 0.54% Asian, 0.04% Pacific Islander, 1.26% from other races, and 1.87% from two or more races. 3.70% of the population were Hispanic or Latino of any race. 31.1% were of

German German(s) may refer to: * Germany (of or related to) **Germania (historical use) * Germans, citizens of Germany, people of German ancestry, or native speakers of the German language ** For citizens of Germany, see also German nationality law **Ge ...

, 10.4% Norwegian, 9.7% Irish, 9.3%

English English usually refers to: * English language * English people English may also refer to: Peoples, culture, and language * ''English'', an adjective for something of, from, or related to England ** English national ...

and 5.4%

American ancestry American ancestry refers to people in the United States who self-identify their ancestral origin or descent as "American," rather than the more common officially recognized racial and ethnic groups that make up the bulk of the American peo ...

. There were 52,084 households, out of which 31.60% had children under the age of 18 living with them, 51.80% were

married couples Marriage, also called matrimony or wedlock, is a culturally and often legally recognized union between people called spouses. It establishes rights and obligations between them, as well as between them and their children, and between ...

living together, 10.10% had a female householder with no husband present, and 34.30% were non-families. 27.90% of all households were made up of individuals, and 10.10% had someone living alone who was 65 years of age or older. The average household size was 2.43 and the average family size was 2.98. The county population contained 25.50% under the age of 18, 9.30% from 18 to 24, 28.70% from 25 to 44, 23.20% from 45 to 64, and 13.30% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 95.20 males. For every 100 females age 18 and over, there were 91.60 males. The median income for a household in the county was $36,727, and the median income for a family was $45,277. Males had a median income of $33,475 versus $21,566 for females. The

per capita income Per capita income (PCI) or total income measures the average income earned per person in a given area (city, region, country, etc.) in a specified year. It is calculated by dividing the area's total income by its total population. Per capita i ...

for the county was $19,303. About 8.50% of families and 11.10% of the population were below the

poverty line The poverty threshold, poverty limit, poverty line or breadline is the minimum level of income deemed adequate in a particular country. The poverty line is usually calculated by estimating the total cost of one year's worth of necessities for ...

, including 14.50% of those under age 18 and 7.40% of those age 65 or over.

2010 census

As of the

2010 United States census The United States census of 2010 was the twenty-third United States national census. National Census Day, the reference day used for the census, was April 1, 2010. The census was taken via mail-in citizen self-reporting, with enumerators serving ...

, there were 147,972 people, 60,672 households, and 38,367 families residing in the county. The population density was . There were 63,943 housing units at an average density of . The racial makeup of the county was 90.7% white, 4.0% American Indian, 0.6% black or African American, 0.6% Asian, 0.1% Pacific islander, 1.2% from other races, and 2.8% from two or more races. Those of Hispanic or Latino origin made up 4.7% of the population. In terms of ancestry, 32.4% were

, 14.0% were Irish, 11.3% were

, 10.0% were

American American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, pe ...

, and 9.9% were Norwegian. Of the 60,672 households, 30.5% had children under the age of 18 living with them, 48.0% were married couples living together, 10.5% had a female householder with no husband present, 36.8% were non-families, and 29.7% of all households were made up of individuals. The average household size was 2.38 and the average family size was 2.94. The median age was 38.3 years. The median income for a household in the county was $48,641 and the median income for a family was $62,380. Males had a median income of $42,899 versus $30,403 for females. The per capita income for the county was $26,152. About 7.9% of families and 11.2% of the population were below the

, including 15.6% of those under age 18 and 7.7% of those age 65 or over.

Politics

Yellowstone County voters have been reliably Republican for over a century. They selected the Democratic Party candidate in only one national election since 1940 (as of 2020).

Communities

Cities

(county seat) * Laurel

Town

* Broadview

Census-designated places

* Acton * Ballantine * Custer * Huntley * Lockwood * Mountain View Colony * Nibbe * Pompeys Pillar *

Shepherd A shepherd or sheepherder is a person who tends, herds, feeds, or guards flocks of sheep. ''Shepherd'' derives from Old English ''sceaphierde (''sceap'' 'sheep' + ''hierde'' ' herder'). ''Shepherding is one of the world's oldest occupations, ...

* Worden

Other unincorporated communities

* Anita * Billings Heights * Bull Mountain *

Comanche The Comanche or Nʉmʉnʉʉ ( com, Nʉmʉnʉʉ, "the people") are a Native American tribe from the Southern Plains of the present-day United States. Comanche people today belong to the federally recognized Comanche Nation, headquartered in ...

* Hesper * Homewood Park * Indian Arrow * Newton * Osborn * Yegen''Yegen MT'' Google Maps (accessed January 8, 2019)
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Ghost towns

* Coulson * Mossmain * Rimrock *

Waco Waco ( ) is the county seat of McLennan County, Texas, United States. It is situated along the Brazos River and I-35, halfway between Dallas and Austin. The city had a 2020 population of 138,486, making it the 22nd-most populous city in the s ...

References

External links

County website
{{Coord, 45.94, -108.27, display=title, type:adm2nd_region:US-MT_source:UScensus1990 Billings metropolitan area 1883 establishments in Montana Territory Populated places established in 1883