Natrona County , Wyoming

Natrona County: County in Wyoming, United States

Natrona County locator map
Location of Natrona County on Wyoming map.


Natrona County is a county located in the U.S. state of Wyoming. As of the 2010 census, the population was 75,450 and a population density of 5 people per km². After 9 years in 2019 county had an estimated population of 79,858 inhabitants. Its county seat is Casper. The county was created 133 years ago in 1887.


Natrona County is located at 42°57'44"N 106°47'55"W (42.9622400, -106.7984900). It has 5 neighbors: Johnson County, Carbon County, Converse County, Fremont County and Washakie County.

Natrona County Courthouse image
Natrona County Courthouse

The largest city of Natrona County is Casper with a population of 57,931. . See all Natrona County cities & populated places.


Natrona County forecast: A chance of showers and thunderstorms before midnight, then scattered showers and thunderstorms between midnight and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 55. North wind 12 to 16 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a quarter and half of an inch possible. more

Natrona County Courthouse image

Natrona County map

Natrona County Quick Facts

Population : 79,858 (2019)
Country : United States of America
State : Wyoming (United States)
Area : 13923 km2
Water as percent of area : 0.7%
Land as percent of area : 99.3%
Named for : natron
Altitude : 5,686 feet / 1733 meters
Capital : Casper
Establishment : January 01, 1888
Time Zone : America/Denver
Local time : 00:52:11 (25th June 2021)
Density : 6 Pop. per km² as of 2019
Population growth : 5.52% (2010-2019)
Weather : 55℉ Chance Showers And Thunderstorms then Scattered Showers And Thunderstorms 7-days weather

Natrona County has 5 neighbours.


The population of Natrona County increased by 5.52% in 9 years.

Year Population % Change Method
2010 75,450 - census
2011 76,399 1.24% estimation process
2012 78,565 2.76% estimation process
2013 81,103 3.13% estimation process
2014 81,377 0.34% estimation process
2015 82,137 0.93% estimation process
2016 80,909 -1.52% estimation process
2017 79,586 -1.66% estimation process
2018 79,175 -0.52% estimation process
2019 79,858 0.86% estimation process

Comitatul Natrona, Comte de Natrona, Comté de Natrona, Condado de Natrona, Condado han Natrona, Contea di Natrona, Hrabstwo Natrona, Natrona, Natrona Comitatus, Natrona Kun, Natrona Kūn, Natrona konderria, Natrona maakond, Natrona megye, Natronan piirikunta, Okrug Natrona, Quan Natrona, Quận Natrona, mqatʿt natrwna, na te luo na xian, natorona jun, natrona ka'unti, shhrstan natrwna waywmyng, Натрона, Округ Натрона, شهرستان ناترونا، وایومینگ, مقاطعة ناترونا, نیٹرونا کاؤنٹی، وائیومنگ, নাট্রোনা কাউন্টি, ナトロナ郡, 納特羅納縣

People born in Natrona County (1)

American engineer, novelist, and politician (1912-1987) Albert Harding was born in Natrona County

Natrona County Populated Places

Cities, Towns, Neighborhoods & Other Populated Places in Natrona County.

City Name Population Title
Casper 57,931 City in and county seat of Natrona County, Wyoming, United States
Mills 3,979 Town in Wyoming, United States
Evansville 2,964 Town in Wyoming
Bar Nunn 2,812 Town of the United States
Mountain View 1,226 Town in Uinta County, Wyoming, United States
Midwest 394 Town of the United States
Edgerton 204 Town in Natrona County, Wyoming, United States

Wyoming Other Counties (more counties)

County Name Population Title
Wyoming 578,759 Least populous state of the United States of America
Laramie County 99,500 County in the southeastern corner of Wyoming, United States
Cheyenne 64,235 Capital of Wyoming, United States and seat of Laramie County
Casper 57,931 City in and county seat of Natrona County, Wyoming, United States
Campbell County 46,341 County in northeastern Wyoming, United States
Sweetwater County 42,343 County in Wyoming, United States
Fremont County 39,261 County in western Wyoming, United States
Albany County 38,880 County in Wyoming, United States
Laramie 32,711 City in and county seat of Albany County, Wyoming, United States
Gillette 32,030 City in Campbell County, Wyoming, United States
Sheridan County 30,485 County in Wyoming, United States
Park County 29,194 County in Colorado, United States
Teton County 23,464 County in Wyoming, United States
Rock Springs 22,653 City in Sweetwater County, Wyoming, United States
Uinta County 20,226 County in Wyoming, United States
Lincoln County 19,830 County in Wyoming, United States

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