Receive a local area code
307
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Economic Overview
Area code 307 covers a region with an economy historically based on energy (coal, oil, natural gas), agriculture (ranching, farming), and tourism, especially related to national parks and outdoor recreation. Major employers include energy companies, Union Pacific Railroad, state and local governments, and tourism-related businesses. The region also benefits economically from the presence of the University of Wyoming in Laramie.
Geographical Overview
Area code 307 covers the entire state of Wyoming, including all major cities such as Cheyenne, Casper, Laramie, Gillette, Rock Springs, Sheridan, and Jackson. It encompasses all 23 counties in Wyoming, from the Great Plains in the east to the Rocky Mountains in the west. The region includes notable geographic features like Yellowstone and Grand Teton National Parks.
Location Info
Area code 307 is unique in that it serves the whole state of Wyoming, making it one of the few single-area-code states in the US. Its boundaries are identical to Wyoming's state lines, bordered by Montana (north), South Dakota and Nebraska (east), Colorado (south), Utah (southwest), and Idaho (west). No part of Wyoming lies outside 307, and no other state is included in this area code.
Population Demographics
The 307 area code region is sparsely populated, with Wyoming being the least populous US state, having approximately 580,000 residents as of the 2020 census. The population is predominantly white, with a significant Native American presence, especially on the Wind River Reservation. Most residents live in small towns and rural areas, with only a few cities having populations over 30,000.
Time Zone Info
Area code 307 is entirely within the Mountain Time Zone (MT), observing both Mountain Standard Time (MST) and Mountain Daylight Time (MDT) when applicable.
Other Area Code Details
Area code 307 was one of the original area codes established in 1947 and has never been split or overlaid, a rarity among US area codes. Wyoming's low population density means 307 is unlikely to change or require additional area codes in the foreseeable future. The code has become a strong symbol of state identity and pride for Wyoming residents.
