Natrona County is a county 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 sov ...

of Wyoming. As of the

2020 United States Census The United States census of 2020 was the twenty-fourth decennial United States census. Census Day, the reference day used for the census, was April 1, 2020. Other than a pilot study during the 2000 census, this was the first U.S. census to off ...

, the population was 79,955, making it the second-most populous county in Wyoming. Its county seat is

Casper Casper may refer to: People * Casper (given name) * Casper (surname) * Casper (Maya ruler) (422–487?), ruler of the Mayan city of Palenque * Tok Casper, first known king of Maya city-state Quiriguá in Guatemala, ruling beginning in 426 * Da ...

. Natrona County comprises the

Casper, WY Metropolitan Statistical Area The Casper, WY Metropolitan Statistical Area is a United States Census Bureau defined Metropolitan Statistical Area (MSA) with the principal city being Casper in central State of Wyoming. The Casper Metropolitan Statistical Area is defined as N ...

. In 2010, the

center of population In demographics, the center of population (or population center) of a region is a geographical point that describes a centerpoint of the region's population. There are several ways of defining such a "center point", leading to different geogr ...

of Wyoming was in Natrona County, near Alcova.

History

Prior to Wyoming's settlement by European-based populations, the area's stretches played host to nomadic tribes such as

Cheyenne The Cheyenne ( ) are an Indigenous people of the Great Plains. Their Cheyenne language belongs to the Algonquian language family. Today, the Cheyenne people are split into two federally recognized nations: the Southern Cheyenne, who are enroll ...

Arapaho The Arapaho (; french: Arapahos, ) are a Native American people historically living on the plains of Colorado and Wyoming. They were close allies of the Cheyenne tribe and loosely aligned with the Lakota and Dakota. By the 1850s, Arapaho ba ...

, Shoshone, and Sioux. New York investor John Jacob Astor established the settlement of Astoria on the

Columbia River The Columbia River ( Upper Chinook: ' or '; Sahaptin: ''Nch’i-Wàna'' or ''Nchi wana''; Sinixt dialect'' '') is the largest river in the Pacific Northwest region of North America. The river rises in the Rocky Mountains of British Columbia, ...

, and sent Robert Stuart eastward to blaze a trail and lay the foundation of a string of trading posts. Stuart documented the South Pass Route through the

Continental Divide A continental divide is a drainage divide on a continent such that the drainage basin on one side of the divide feeds into one ocean or sea, and the basin on the other side either feeds into a different ocean or sea, or else is endorheic, not c ...

, near the SW corner of present-day Natrona County. Stuart's company erected the first hut in the area in 1812, near present-day Bessemer Bend. In 1840, Father Pierre-Jean De Smet began preaching the Christian teaching to this area's indigenous peoples. He carved his name on Independence Rock and called it ''The Register of the Desert''. Later explorers who inscribed the rock include

John C. Frémont John Charles Frémont or Fremont (January 21, 1813July 13, 1890) was an American explorer, military officer, and politician. He was a U.S. Senator from California and was the first Republican nominee for president of the United States in 1856 ...

(1843), who explored the country along the Platte and Sweetwater Rivers. The first Euro-American settlement occurred in the

area in the late 19th century. Natrona County was created by the legislature of the Wyoming Territory on March 9, 1888, and it was organized in 1890. The land for Natrona County was annexed from Carbon County. Natrona County was named for the deposits of natron found in the area. According to George Mitchell, first mayor of Casper and member of the organization commission for Natrona County, the name was first suggested "by my old friend the late Cy Iba, who at one time owned the soda lakes." In 1909, Natrona County gained land from Fremont County. The boundaries were adjusted slightly in 1911 and 1931, and at that point the county gained its present outline.

Geography

According to the

U.S. 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 the ...

, the county has an area of , of which is land and (0.7%) is water.

Geographic features

* Casper Mountain * Devil's Gate * Hell's Half Acre * Independence Rock *

Martin's Cove Martin's Cove is a historic site in Wyoming. The 933 acre (3.8 km²) cove is located 55 miles (89 km) southwest of Casper, Wyoming, in Natrona County. It is located on the Mormon Trail and is also part of the North Platte- Sweetwater s ...

Teapot Rock Teapot Rock, also known as Teapot Dome, is a distinctive sedimentary rock formation in Natrona County, Wyoming that lent its name to a nearby oil field that became notorious as the focus of the Teapot Dome scandal, a bribery scandal during the pre ...

Adjacent counties

* Johnson County – north *

Converse County Converse County is a county located in the U.S. state of Wyoming. As of the 2020 United States Census, the population was 13,751. Its county seat is Douglas. History Converse County was created in 1888 by the legislature of the Wyoming Ter ...

– east * Albany County – southeast * Carbon County – south * Fremont County – west * Washakie County – northwest

Major Highways

Interstate 25 * * US 20

U.S. Highway 20 U.S. Route 20 or U.S. Highway 20 (US 20) is an east–west United States Numbered Highway that stretches from the Pacific Northwest east to New England. The "0" in its route number indicates that US 20 is a major coast-to-coast route. S ...

U.S. Highway 26 U.S. Route 26 (US 26) is an east–west United States highway that runs from Seaside, Oregon to Ogallala, Nebraska. When the U.S. highway system was first defined, it was limited to Nebraska and Wyoming; by the 1950s, it continued into Idaho an ...

U.S. Highway 87 * US 287

U.S. Highway 287 *

Wyoming Highway 220 Wyoming Highway 220 (WYO 220) is the principal highway connecting the city of Casper to US 287/WYO 789. WYO 220 lies in northwestern Carbon and southern Natrona counties and along the famous Oregon Trail. Route description Wyoming Highway 2 ...

* Wyoming Highway 251 * Wyoming Highway 252 * Wyoming Highway 253 * Wyoming Highway 256 * Wyoming Highway 257 * Wyoming Highway 258 * Wyoming Highway 259 * Wyoming Highway 387 * Wyoming Highway 487

Geology

Natrona County derives its name from the vast deposits of the mineral Natron found within the county. Of the 18 million tons of Natron consumed by American industry annually 17 Million tons is mined in Wyoming due to it purity.

National protected areas

Medicine Bow National Forest Medicine is the science and practice of caring for a patient, managing the diagnosis, prognosis, prevention, treatment, palliation of their injury or disease, and promoting their health. Medicine encompasses a variety of health care practic ...

(part) *

Pathfinder National Wildlife Refuge Pathfinder National Wildlife Refuge is located in the U.S. state of Wyoming and includes 16,807 acres (68 km2). The refuge is managed by the U.S. Fish and Wildlife Service and the U.S. Bureau of Reclamation, both agencies within the U.S ...

(part)

Demographics

2000 census

As of the

2000 United States Census The United States census of 2000, conducted by the United States Census Bureau, 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 en ...

, of 2000, there were 66,533 persons, 26,819 households, and 17,754 families in the county. The population density was 12 people per square mile (5/km²). There were 29,882 housing units at an average density of 6 per square mile (2/km²). The

racial A race is a categorization of humans based on shared physical or social qualities into groups generally viewed as distinct within a given society. The term came into common usage during the 1500s, when it was used to refer to groups of variou ...

makeup of the county was 94.15% White, 0.76%

Black Black is a color which results from the absence or complete absorption of visible light. It is an achromatic color, without hue, like white and grey. It is often used symbolically or figuratively to represent darkness. Black and white have of ...

African American African Americans (also referred to as Black Americans and Afro-Americans) are an ethnic group consisting of Americans with partial or total ancestry from sub-Saharan Africa. The term "African American" generally denotes descendants of enslav ...

, 1.03% Native American, 0.42% Asian, 0.04%

Pacific Islander Pacific Islanders, Pasifika, Pasefika, or rarely Pacificers are the peoples of the Pacific Islands. As an ethnic/ racial term, it is used to describe the original peoples—inhabitants and diasporas—of any of the three major subregions of Oce ...

, 1.92% from other races, and 1.68% from two or more races. 4.90% of the population were Hispanic or Latino of any race. 24.6% 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 ...

, 11.6% English, 11.3%

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 11.2%

Irish Irish may refer to: Common meanings * Someone or something of, from, or related to: ** Ireland, an island situated off the north-western coast of continental Europe ***Éire, Irish language name for the isle ** Northern Ireland, a constituent unit ...

ancestry. There were 26,819 households, out of which 32.20% had children under the age of 18 living with them, 51.40% were married couples living together, 10.60% had a female householder with no husband present, and 33.80% were non-families. 27.50% of all households were made up of individuals, and 9.40% had someone living alone who was 65 years of age or older. The average household size was 2.42 and the average family size was 2.95. The county population contained 26.00% under the age of 18, 10.10% from 18 to 24, 27.90% from 25 to 44, 23.30% from 45 to 64, and 12.70% who were 65 years of age or older. The median age was 36 years. For every 100 females there were 97.70 males. For every 100 females age 18 and over, there were 95.00 males. The median income for a household in the county was $36,619, and the median income for a family was $45,575. Males had a median income of $33,524 versus $21,374 for females. The per capita income for the county was $18,913. About 8.70% of families and 11.80% of the population were below the poverty line, including 16.20% of those under age 18 and 7.20% 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 servin ...

, there were 75,450 people, 30,616 households, and 19,714 families in the county. The population density was . There were 33,807 housing units at an average density of . The racial makeup of the county was 92.8% white, 1.0% American Indian, 0.9% black or African American, 0.7% Asian, 0.1% Pacific islander, 2.2% from other races, and 2.4% from two or more races. Those of Hispanic or Latino origin made up 6.9% of the population. In terms of ancestry, 27.2% were

, 15.2% were

, 13.2% were English, and 10.7% were

. Of the 30,616 households, 31.9% had children under the age of 18 living with them, 48.1% were married couples living together, 10.9% had a female householder with no husband present, 35.6% were non-families, and 28.5% of all households were made up of individuals. The average household size was 2.41 and the average family size was 2.94. The median age was 36.8 years. The median income for a household in the county was $50,936 and the median income for a family was $62,859. Males had a median income of $47,610 versus $30,664 for females. The per capita income for the county was $28,235. About 5.4% of families and 8.4% of the population were below the poverty line, including 9.9% of those under age 18 and 8.8% of those age 65 or over.

Communities

Cities

(county seat)

Towns

* Bar Nunn * Edgerton *

Evansville Evansville is a city in, and the county seat of, Vanderburgh County, Indiana, United States. The population was 118,414 at the 2020 census, making it the state's third-most populous city after Indianapolis and Fort Wayne, the largest city in ...

* Midwest *

Mills Mills is the plural form of mill, but may also refer to: As a name * Mills (surname), a common family name of English or Gaelic origin * Mills (given name) *Mills, a fictional British secret agent in a trilogy by writer Manning O'Brine Places Un ...

Census-designated places

* Alcova * Antelope Hills * Bessemer Bend * Brookhurst * Casper Mountain * Hartrandt * Homa Hills * Meadow Acres * Mountain View *

Powder River Powder River may refer to: Places * Powder River (Wyoming and Montana), in Wyoming and Montana in the United States * Powder River Country, the area around the above river * Powder River (Oregon), in Oregon in the United States * Powder River Ba ...

* Red Butte * Vista West

Unincorporated communities

* Arminto * Bucknum * Crimson Dawn *

Goose Egg Humans and human ancestors have scavenged and eaten animal eggs for millions of years. Humans in Southeast Asia had domesticated chickens and harvested their eggs for food by 1,500 BCE. The most widely consumed eggs are those of fowl, especial ...

* Hells Half Acre * Hiland * Natrona * Strouds

Government

Like almost all of Wyoming, Natrona is a heavily Republican county. It is rather conservative for an urban county, having gone Republican in all but three elections since 1944. No Democratic presidential candidate has won forty percent of the county's vote since Lyndon Johnson garnered 52 percent in his 1964 landslide against

Barry Goldwater Barry Morris Goldwater (January 2, 1909 – May 29, 1998) was an American politician and United States Air Force officer who was a five-term U.S. Senator from Arizona (1953–1965, 1969–1987) and the Republican Party nominee for presid ...

. Bill Clinton did win a 100-vote plurality in the 1992 election due to a significant third-party vote. In 2020, Donald Trump received 71.8% of the vote, the county's highest vote percentage for any presidential candidate since Wyoming statehood in 1890. Natrona County is governed by a commission, based in the county seat of

. The five-member board consists of commissioners, elected to staggered four-year terms. Current commissioners are: * Forrest Chadwick (Chairman) – Republican * John Lawson (Vice-Chairman) – Republican * Matt Keating – Republican * Rob Hendry – Republican * Steve Schlager – Republican

References

{{Coord, 42.97, -106.80, display=title, type:adm2nd_region:US-WY_source:UScensus1990 1890 establishments in Wyoming Populated places established in 1890