Area Code 307

Where Is Area Code 307?

Updated: June 28th 2021

Area code 307 is the area code for the entire state of Wyoming; Wyoming is one of only 12 states to only have one area code. When area code 307 was put into service in 1947, it was one of the 86 original area codes created by AT&T.

Located in the southeast corner of Wyoming on Crow Creek and Dry Creek, Cheyenne is the most populous city in the state and the county seat of Laramie County. Cheyenne is also the capital of Wyoming, but it is one of the least centrally located state capitals in the nation. Cheyenne embodies the spirit of the Old West with its collection of steam engines, western-themed museums, and ranches. Cheyenne has a semi-arid climate, characterized by warm summers and long, cold, but relatively dry winters; Cheyenne is one of the windiest cities in the United States. Cheyenne is nicknamed "Magic City of the Plains" because the city was settled so swiftly in 1867.

Cheyenne has a population of 59,466 and the racial makeup of the city is 87.4% White, 14.4% Hispanic, 2.9% African American, and 1.2% Asian (2010 Census).

The state of Wyoming operates a large number of offices in downtown Cheyenne, making government the largest sector of the economy. Railroads also play an important part in the economy, with both the Union Pacific Railroad and BNSF Railway Company employing many residents. Cheyenne is the retail hub for Wyoming because it is home to the Frontier Mall, the state’s second biggest mall. The biggest event in the city is Cheyenne Frontier Days, an outdoor rodeo and western celebration that draws over 200,000 people every year. Cheyenne Frontier Days is the largest outdoor rodeo and features events such as professional bull riding, calf roping, barrel racing, and steer wrestling. The Curt Gowdy State Park is the most popular park in the city because it features an extensive trail system and three reservoirs. Points of interest in the city include the Wyoming State Museum, the Southeast Wyoming Welcome Center, the Cheyenne Frontier Days Old West Museum, the Cheyenne Botanic Gardens, and the Nelson Museum of the West.

Located in east-central Wyoming at the foot of Casper Mountain along the North Platte River, Casper is the second most populous city in the state and the county seat of Natrona County. Casper is nicknamed "The Oil City" because it became the regional petroleum industry center after the discovery of crude oil in the region during the 1890s. Casper has a population of 55,316 and the racial makeup of the city is 92.3% White, 7.4% Hispanic, 1.0% African American, and 0.8% Asian (2010 Census). When it comes to the economy, Casper is a regional center of banking and commerce. The Central Wyoming Fair and Rodeo has been held in the city since 1947 and celebrates all things western while the College National Finals Rodeo is a college rodeo that features over 400 cowboys and cowgirls from over 100 universities and colleges. Casper is a traditional mountain town that offers plenty of recreational activities, whether it is biking across Casper Mountain’s limitless trails, hiking beneath the wide-open skies at Fremont Canyon, or fly-fishing on the North Platte River. Points of interest in the city include the National Historic Trails Interpretive Center, the Fort Caspar Museum and Historic Site, the Tate Geological Museum, the Casper Events Center, and the Nicolaysen Art Museum.

Major Cities In Area Code 307





Rock Springs

Located on the Laramie River in southeastern Wyoming, Laramie is the fourth most populous city in the state and the county seat of Albany County. Nestled between the Snowy Range and the Laramie Range, Laramie is the perfect city for people who love skiing, snowmobiling, mountain biking, fishing, and hiking. Laramie has a population of 30,816 and the racial makeup of the city is 89.5% White, 9.2% Hispanic, 3.2% Asian, and 1.3% African American (2010 Census). Laramie Jubilee Days has been held in the city since 1940 and celebrates the western lifestyle with a number of events. Points of interest in the city include the Wyoming Territorial Prison State Historic Site, the University of Wyoming Geological Museum, the University of Wyoming Art Museum, and the Laramie Plains Museum.

All Wyoming Area Codes By Number