Natrona County is a

county A county is a geographic region of a country used for administrative or other purposesChambers 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 sover ...

Wyoming Wyoming () is a U.S. state, state in the Mountain states, Mountain West subregion of the Western United States. It is bordered by Montana to the north and northwest, South Dakota and Nebraska to the east, Idaho to the west, Utah to the south ...

. 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 of ...

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

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 * David ...

. Natrona County comprises the Casper, WY Metropolitan Statistical Area. 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 band ...

Shoshone The Shoshone or Shoshoni ( or ) are a Native American tribe with four large cultural/linguistic divisions: * Eastern Shoshone: Wyoming * Northern Shoshone: southern Idaho * Western Shoshone: Nevada, northern Utah * Goshute: western Utah, easter ...

, and

Sioux The Sioux or Oceti Sakowin (; Dakota language, Dakota: Help:IPA, /otʃʰeːtʰi ʃakoːwĩ/) are groups of Native Americans in the United States, Native American tribes and First Nations in Canada, First Nations peoples in North America. The ...

. New York investor

John Jacob Astor John Jacob Astor (born Johann Jakob Astor; July 17, 1763 – March 29, 1848) was a German-American businessman, merchant, real estate mogul, and investor who made his fortune mainly in a fur trade monopoly, by smuggling opium into China, and ...

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, C ...

, 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 ...

, 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 Pierre-Jean De Smet, SJ ( ; 30 January 1801 – 23 May 1873), also known as Pieter-Jan De Smet, was a Flemish Catholic priest and member of the Society of Jesus (Jesuits). He is known primarily for his widespread missionary work in the mid-19th ...

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 Natron is a naturally occurring mixture of sodium carbonate decahydrate ( Na2CO3·10H2O, a kind of soda ash) and around 17% sodium bicarbonate (also called baking soda, NaHCO3) along with small quantities of sodium chloride and sodium sulfate. N ...

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 Casper Mountain, an anticline, is located at the north end of the Laramie Mountains overlooking Casper, Wyoming along the North Platte River. At a top elevation of , the geological feature rises approximately above Casper. Recreation Ca ...

* 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 ...

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 pres ...

Adjacent counties

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

Major Highways

Interstate 25 Interstate 25 (I-25) is a major Interstate Highway in the western United States. It is primarily a north–south highway, serving as the main route through New Mexico, Colorado, and Wyoming. I-25 stretches from I-10 at Las Cruces, New Mexic ...

* *

U.S. Highway 20 * US 26

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 a ...

U.S. Highway 87 U.S. Highway 87 (US 87) is a north–south United States highway (though it is signed east–west in New Mexico) that runs for 1,998 miles (3,215 km) from northern Montana to southern Texas, making it the longest north-south roa ...

U.S. Highway 287 *

Wyoming Highway 220 Wyoming Highway 220 (WYO 220) is the principal highway connecting the city of Casper, Wyoming, Casper to US 287/WYO 789. WYO 220 lies in northwestern Carbon County, Wyoming, Carbon and southern Natrona County, Wyoming, Natrona counties and along t ...

* Wyoming Highway 251 * Wyoming Highway 252 * Wyoming Highway 253 * Wyoming Highway 256 * Wyoming Highway 257 *

Wyoming Highway 258 Wyoming Highway 258 (WYO 258) is a state highway in Wyoming, known as ''Wyoming Boulevard'' and acts as a two-lane bypass around the western, southern, and eastern sides of the Casper, Wyoming, City of Casper. Route description Wyoming Highway 2 ...

* Wyoming Highway 259 *

Wyoming Highway 387 Wyoming Highway 387 (WYO 387) is a state road that travels from extreme northeast Natrona County, Wyoming through extreme southeast Johnson County, Wyoming and into southwest Campbell County, Wyoming. Route description Wyoming Highway 387 ...

* Wyoming Highway 487

Geology

Natrona County derives its name from the vast deposits of the mineral

Natron Natron is a naturally occurring mixture of sodium carbonate decahydrate ( Na2CO3·10H2O, a kind of soda ash) and around 17% sodium bicarbonate (also called baking soda, NaHCO3) along with small quantities of sodium chloride and sodium sulfate. N ...

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 Praxis (process), practice of caring for a patient, managing the diagnosis, prognosis, Preventive medicine, prevention, therapy, treatment, Palliative care, palliation of their injury or disease, and Health promotion ...

(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. ...

(part)

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 ce ...

, of 2000, there were 66,533 persons, 26,819 households, and 17,754 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 RosenberPopul ...

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 White is the lightest color and is achromatic (having no hue). It is the color of objects such as snow, chalk, and milk, and is the opposite of black. White objects fully reflect and scatter all the visible wavelengths of light. White on ...

, 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 o ...

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 ens ...

, 1.03% Native American, 0.42%

Asian Asian may refer to: * Items from or related to the continent of Asia: ** Asian people, people in or descending from Asia ** Asian culture, the culture of the people from Asia ** Asian cuisine, food based on the style of food of the people from Asi ...

, 0.04%

Pacific Islander Pacific Islanders, Pasifika, Pasefika, or rarely Pacificers are the peoples of the list of islands in the Pacific Ocean, Pacific Islands. As an ethnic group, ethnic/race (human categorization), racial term, it is used to describe the original p ...

, 1.92% from

other races Other often refers to: * Other (philosophy), a concept in psychology and philosophy Other or The Other may also refer to: Film and television * ''The Other'' (1913 film), a German silent film directed by Max Mack * ''The Other'' (1930 film), a ...

, and 1.68% from two or more races. 4.90% of the population were

Hispanic The term ''Hispanic'' ( es, hispano) refers to people, Spanish culture, cultures, or countries related to Spain, the Spanish language, or Hispanidad. The term commonly applies to countries with a cultural and historical link to Spain and to Vic ...

Latino Latino or Latinos most often refers to: * Latino (demonym), a term used in the United States for people with cultural ties to Latin America * Hispanic and Latino Americans in the United States * The people or cultures of Latin America; ** Latin A ...

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 **Ger ...

, 11.6%

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 ide ...

, 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 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 t ...

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 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 $18,913. About 8.70% of families and 11.80% 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 t ...

, 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

, 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

, 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 S ...

Midwest The Midwestern United States, also referred to as the Midwest or the American Midwest, is one of four Census Bureau Region, census regions of the United States Census Bureau (also known as "Region 2"). It occupies the northern central part of ...

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 Unit ...

Census-designated places

* Alcova * Antelope Hills * Bessemer Bend * Brookhurst *

* Hartrandt * Homa Hills * Meadow Acres * Mountain View * Powder River *

Red Butte Red Butte is a butte located in the Kaibab National Forest in Coconino County, Arizona, Coconino County, Arizona. (Not to be confused with Red Mountain which is a blown out volcano located a few miles to the south.) It is known to the Havasupai n ...

* 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, especia ...

* 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 Lyndon Baines Johnson (; August 27, 1908January 22, 1973), often referred to by his initials LBJ, was an American politician who served as the 36th president of the United States from 1963 to 1969. He had previously served as the 37th vice ...

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 presiden ...

Bill Clinton William Jefferson Clinton ( né Blythe III; born August 19, 1946) is an American politician who served as the 42nd president of the United States from 1993 to 2001. He previously served as governor of Arkansas from 1979 to 1981 and agai ...

did win a 100-vote plurality in the 1992 election due to a significant third-party vote. In 2020,

Donald Trump Donald John Trump (born June 14, 1946) is an American politician, media personality, and businessman who served as the 45th president of the United States from 2017 to 2021. Trump graduated from the Wharton School of the University of Pe ...

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 Republican can refer to: Political ideology * An advocate of a republic, a type of government that is not a monarchy or dictatorship, and is usually associated with the rule of law. ** Republicanism, the ideology in support of republics or agains ...

* John Lawson (Vice-Chairman) –

* Matt Keating –

* Rob Hendry –

* Steve Schlager –

References

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