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Population Statistics State Population 493,782 Top County Populations Laramie 81,607 Natrona 66,533 Sweetwater 37,613 Fremont 35,804 Campbell 33,698 Albany 32,014 Sheridan 26,560 Park 25,786 Unita 19,742 Top City Populations Cheyenne 53,011 Casper 49,644 Laramie 27,204 Gillette 19,646 Rock Springs 18,708 Sheridan 15,804 Green River 11,808 Evanston 11,507 Riverton 9,310 Source: 2000 U.S. Census Data Other Statistics Capital: Cheyenne Nickname: Equality State Most of the state is above 4,000 feet above sea level The lowest elevation in the state is in the northeastern corner, near the Belle Fourche River Wyoming is one of the few states to still have only one area code: 307 Area: 97,813.56 square miles or 253,326 square kilometers, 9th largest Statehood: 44th state; admitted July 10, 1890 Total Interstate Mileage: 913.60 miles Highest Point: Mount Gannett Peak (in Wind River Range south of Dubois and north of Pinedale), 13,804 Feet above Sea Level Highway Guides Focus Pages Cheyenne Laramie Vedauwoo Interstate 25 Business Loop - Cheyenne Business Loop - Chugwater Business Loop - Wheatland Business Loop - Douglas Business Loop - Glenrock Business Loop - Casper Business Loop - Buffalo Interstate 80 Historic Lincoln Highway Business Loop - Evanston Business Loop - Lyman Business Loop - Green River Business Loop - Rock Springs Business Loop - Rawlins Business Loop - Laramie Business Loop - Cheyenne Business Loop - Pine Bluffs Interstate 90 Business Loop - Sheridan Business Loop - Buffalo Business Loop - Gillette Business Loop - Moorcroft Business Loop - Sundance Interstate 90 Business Loops in Wyoming - Junction Lists Interstate 180 U.S. 12 - terminated U.S. 14 Alternate U.S. 14 U.S. 16 U.S. 18 U.S. 20 (Alternate U.S. 20 proposed but not implemented) Business U.S. 20-26 in Casper U.S. 26 U.S. 30 Historic Lincoln Highway U.S. 85 U.S. 87 U.S. 89 U.S. 116 - terminated U.S. 185 - terminated U.S. 187 - terminated U.S. 189 U.S. 191 U.S. 212 U.S. 216 - terminated U.S. 285 - terminated U.S. 287 U.S. 310 U.S. 312 - terminated U.S. 320 - terminated U.S. 420 - terminated U.S. 789 - proposed but not implemented Yellowstone's Grand Loop Road State Route Logs Wyoming State Routes 000-099 Wyoming State Routes 100-199 Wyoming State Routes 200-299 Wyoming State Routes 300-399 Wyoming State Routes 400-499 Wyoming State Routes 500-999 State Route History State Route Roadtrips Wyoming 24 Wyoming 28 Wyoming 59 Wyoming 92 Wyoming 110 (Devils Tower) Wyoming 130 Wyoming 210 Miscellaneous Statewide Exit and Junction Lists Interstate 25 Exit List Interstate 80 Exit List Interstate 90 Exit List U.S. 14 U.S. 16 U.S. 18 U.S. 20 U.S. 26 U.S. 30 U.S. 85 U.S. 87 U.S. 89 U.S. 189 U.S. 191 U.S. 212 U.S. 287 U.S. 310 Wyoming 789 Primary State Routes Wyoming State Highways For each route signed as an Interstate, U.S., or State Highway, Wyoming DOT has an inventory control route number. This control number determines the mileposts on all state-maintained highways. For Interstates, the state control route number is the letter "I" plus the route number. Therefore, Interstate 80 is inventory control route I-80. For U.S. and state routes, the state has identified its own set of hidden numbers that usually do not match the signed route number. For example, U.S. 287 carries eight separate inventory control route numbers (P-23, S-410, I-80, P-21, P-20, P-15, P-30, and P-10) on its diagonal course across the state. On the other hand, Wyoming 344 is known as inventory control route SH-344. Wyoming DOT has five classifications of state control inventory routes: I (Interstate), P (Primary), S (Secondary), U (Urban), and SH (State Highway). The letters are prefixes for its state control numbers. P-30 refers to State Control Primary Route 30, while S-410 refers to State Control Secondary Route 410. These numbers do not refer to the same stretch of highway as State Signed Routes 30 or 410! Note that there can be duplication between these types of routes (for example, there is both an Interstate 25 and a P-25). Wyoming Highways in the National Highway System Interstate 25 - Colorado State Line to Buffalo Interstate 80 - Utah State Line to Nebraska State Line Interstate 90 - Montana State Line to South Dakota State Line Interstate 180 - Cheyenne/Central Avenue Spur U.S. 14 - Yellowstone to Sheridan Alternate U.S. 14 - Cody to Lovell U.S. 16 - Gillette to Rapid City U.S. 18 - Orin to Lusk; Lusk to Mule Creek Junction; Mule Creek Junction to Hot Springs, South Dakota, and South Dakota 79 junction). The route from Orin to Rapid City via U.S. 18 and South Dakota 79 is a STRANET Route. U.S. 20 - Greybull to Shoshoni; Shoshoni to Casper; Lusk to Chadron, Nebraska U.S. 26 - Diversion Dam to Riverton; Riverton to Shoshoni; Dwyer to Ogallala, Nebraska U.S. 30 - Cokeville to Granger U.S. 85 - Cheyenne to Deadwood, South Dakota U.S. 89 - Ogden, Utah, to Moran Junction Wyoming 89 - Cokeville to Geneva, Idaho Wyoming 114 - Lovell to Deaver U.S. 212 - through Colony, between Crow Agency, Montana, and Belle Fourche, South Dakota Wyoming 220 - Muddy Gap to Casper U.S. 287 - Fort Collins, Colorado, to Laramie; Rawlins to Muddy Gap; Muddy Gap to Lander; Lander to Diversion Dam; Diversion Dam to Moran Junction U.S. 310 - Greybull to Laurel, Montana, via Frannie Wyoming 789 - Lander to Riverton In addition, the following routes were submitted for inclusion in Wyoming's National Highway System in 1995, but they were not adopted: U.S. 16 - Worland to Buffalo Wyoming 59 - Douglas to Gillette U.S. 191 - Rock Springs to Hoback Junction Mileposting Wyoming's mileposts are based on the secret control number, so the mileposts along a given route may not be unique only to that signed route number. A route such as U.S. 287 utilizes several control routes on its journey across Wyoming. If WyoDOT realigns a highway or joins two highways under one state control number, an BACK=AHEAD (BK=AH) equation is typically used to keep the mileposts in sync. For example, 1.01BK=34.76AH means that the 1.01 milepost equals the 34.76 milepost. This means that the distance between Milepost 1.00 and Milepost 35.00 is only 0.25 mile. This table shows the complete list of "secret" or "hidden" route numbers for the major highways in Wyoming as of January 1998. Note that in some cases, the "secret" or "hidden" route number matches that of the signed route. Mileage shown is Interstate (I), primary (P), secondary (S), urban (U), or state highway rural (SH). Wyoming License Plates License plates in the state of Wyoming feature the "bucking bronco." This horse has appeared on Wyoming license plates since 1936. The number to the left of the bronco is a code to determine the vehicle's county of origin, while the number to the right of the bronco is the vehicle's identifying number. That number is usually a combination of four numbers or three numbers plus a two-digit letter code. Later versions of the plate have three numbers and a letter or combination of letters. Vanity plates are the county number and a one, two, three, or four-letter word -- of course, some four-letter words are not allowed! Plates are currently silkscreened, but until 2003 they were embossed. This list shows the county numbers and the county represented by that number. The number represents the ranking of the county according to their total county property valuation. If the counties were re-evaluated today, this order would no longer be true. Note that the clustering of Wyoming state routes is ordered alphabetically, not in the license plate order. Thus, Albany County has State Routes 10-29, but it is County #5 on license plates. 1 Natrona 11 Park 21 Weston 2 Laramie 12 Lincoln 22 Teton 3 Sheridan 13 Converse 23 Sublette 4 Sweetwater 14 Niobrara 5 Albany 15 Hot Springs 6 Carbon 16 Johnson 7 Goshen 17 Campbell 8 Platte 18 Crook 9 Big Horn 19 Uinta 10 Fremont 20 Washakie In an article dated May 25, 2000 from The Washington Times, the People for the Ethical Treatment of Animals (PETA) assailed Wyoming's license plate, asking the governor of Wyoming to remove the bucking bronco from the state's license plate, claiming it "promotes and glorifies" animal cruelty. PETA wants Gov. Jim Geringer to "modernize" the silhouette image of a cowboy atop the bucking animal to "reflect 21st century understanding of the nature of animals." According to a Kristie Sigmon of PETA, "We are hopeful that when you learn about the lives of animals used in rodeos, you will not wish to promote and glorify these inhumane events on state license plates. Treating 'livestock' like mechanical bulls makes Wyoming a laughing stock." Senator Craig Thomas, Wyoming Republican, said PETA should focus on more important issues than "maligning license plates." He said PETA was "bucking up the wrong tree. Don't hold your breath for Wyoming to boot the cowboy off the plates to reflect PETA's politically correct campaign." Miss Sigmon said the plates are a promotion of rodeos, although there is no mention of rodeos on the plates, which contain the image, license number and state name. Most Wyoming residents are proud of the symbol, which has become an icon identifying Wyoming products, objects and people. The symbol was adopted to the state license plate in 1936. It dates back to 1918, when it was the insignia worn by soldiers from Wyoming in World War I, and was designed by George N. Ostrom. It was later adopted by the U.S. Army to identify gun trails, trucks and other equipment, according to information provided by the Wyoming Secretary of State's Office. However, some historians believe the horse in the symbol was modeled after a legendary rodeo horse named Steamboat, which was dubbed "the horse that couldn't be ridden." National Forest Scenic Routes Several stretches of Wyoming highways within national forest boundaries are designated by the U.S. Forest Service as scenic byways. These routes include three routes in the Big Horn Mountains (U.S. 14, 14A, and 16) as well as several others throughout the state: Big Horn Scenic Byway (U.S. 14 from the town of Shell through Shell Canyon to Burgess Jct.) Medicine Wheel Passage (Alternate U.S. 14 between Burgess Junction and Lovell) Cloud Peak Skyway (U.S. 16 between Ten Sleep and Buffalo). Wyoming Centennial Scenic Byway, which includes U.S. 26-287 over Togwotee Pass between Dubois and Moran Junction and U.S. 189-191 from the Rim through Bondurant to Hoback Junction North Fork Scenic Byway (U.S. 14-16-20 from west of Cody to Yellowstone National Park) Snowy Range Scenic Byway (Wyoming 130 between Centennial and Saratoga) Beartooth Highway Scenic Byway (U.S. 212 over Beartooth Pass, east of Yellowstone National Park's Northeast Entrance). Chief Joseph Scenic Highway (Wyoming 296 northwest of Cody) Bureau of Land Management (BLM) Scenic Backways Three routes in Wyoming consisting of county roads (marked by a red dotted line) have been designated by the U.S. Bureau of Land Management as back country byways. These routes include: South Big Horn and Red Wall Byway in western Natrona County Red Gulch/Alkali Byway in eastern Big Horn County Seminoe-Alcova Byway between Sinclair and Alcova. A word of caution: BLM Back Country Byways include sections of gravel roads in remote areas which are not suitable for wintertime travel or travel during inclement weather other times of the year. Wyoming Scenic Loop Tours The State of Wyoming has designated six scenic loop tours, three in the southern half of the state and three in the northern half of the state. Notably, none of them are anywhere near Yellowstone National Park. The scenic loop tour routes are: Cheyenne and Oregon Trail Loop begins on Interstate 25 in Cheyenne and follows U.S. 85 to Torrington, U.S. 26 past Ft. Laramie to Guernsey, Wyoming 270 through Hartville to Manville and finally U.S. 18-20 back to Interstate 25 south of Douglas. Flaming Gorge Loop starts in Green River and circles Flaming Gorge Reservoir via Wyoming 530 and U.S. 191 before ending in Rock Springs. Snowy Range and Laramie Plains Loop starts in Laramie and proceeds along Wyoming 130 over Snowy Range Pass to Saratoga. After a side trip to Encampment, it returns to Laramie via Wyoming 130-230 to Walcott Junction and then U.S. 30 through Medicine Bow. Base of the Big Horns Loop leaves Buffalo and proceeds northward to Story via Wyo. 193 and then Sheridan via U.S. 87 before going back to Buffalo through Ucross on U.S. 14-16. Black Hills Loop begins in Sundance and follows Interstate 90 and then Wyo. 111 to Aladdin, then along Wyo. 24 to Hulett, Devils Tower National Monument, and Moorcroft, and then on Interstate 90 back to Sundance. Big Horn Basin Loop starts at Ranchester and follows U.S. 14 over the Big Horn Mountains via Burgess Jct., and then it follows U.S. 20, Wyoming 789, and U.S. 16 in a circuit around the Big Horn Basin. This page, and all the Wyoming Highway pages herein, are in no way related to the official Wyoming Department of Transportation home page. Please visit Wyoming State Department of Transportation for more information. Page Updated April 4, 2006.