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State of Oklahoma
Flag of Oklahoma State seal of Oklahoma
Flag Seal
Nickname(s): Sooner State; Land of the Red Man; Native America
Motto(s): Labor omnia vincit (Latin: Work conquers all)
Map of the United States with Oklahoma highlighted
Official language


(Cherokee official within Cherokee Nation and UKB)
Demonym Oklahoman; Okie (colloq.)
(and largest city)
Oklahoma City
Largest metro Oklahoma City-Shawnee
Area Ranked 20th
 • Total 69,899 sq mi
(181,295 km2)
 • Width 230 miles (450 km)
 • Length 465 miles (750 km)
 • % water 1.8
 • Latitude 33°37' N to 37° N
 • Longitude 94° 26' W to 103° W
Population Ranked 28th
 • Total 3,923,561 (2016 est)
 • Density 55.2/sq mi  (21.3/km2)
Ranked 35th
 • Highest point Black Mesa
4,975 ft (1516 m)
 • Mean 1,300 ft  (400 m)
 • Lowest point Little River at Arkansas border
289 ft (88 m)
Before statehood Oklahoma Territory/Indian territory
Admission to Union November 16, 1907 (46th)
Governor Mary Fallin (R)
Lieutenant Governor Todd Lamb (R)
Legislature Oklahoma Legislature
 • Upper house Senate
 • Lower house House of Representatives
U.S. Senators Jim Inhofe (R)
James Lankford (R)
U.S. House delegation 5 Republicans (list)
Time zones  
 • all of the state (legally) Central: UTC -6/-5
 • Kenton (informally) Mountain: UTC -7/-6
ISO 3166 US-OK
Abbreviations OK, Okla.
Website www.ok.gov
Oklahoma state symbols
Flag of Oklahoma.svg
Seal of Oklahoma.svg
Living insignia
Amphibian Bullfrog
Bird Scissor-tailed Flycatcher
Fish White Bass
Flower Oklahoma Rose
Grass Indian Grass
Insect European honey bee
Mammal American Bison (State symbol)
Reptile Collared Lizard
Tree Redbud
Inanimate insignia
Colors White and green (vice versa)
Dinosaur Acrocanthosaurus
Folk dance Square dance
Fossil Saurophaganax
Motto Labor omnia vincit
Nickname The Sooner State
Rock Rose Rock
Soil Port Silt Loam
Song "Oklahoma!"
Tartan Oklahoma Tartan
State route marker
Oklahoma state route marker
State quarter
Oklahoma quarter dollar coin
Released in 2008
Lists of United States state symbols


Oklahoma (Listeni/ˌkləˈhmə/;Cherokee: Asgaya gigageyi / ᎠᏍᎦᏯ ᎩᎦᎨᏱ; or transliterated from English as ᎣᎦᎳᎰᎹ (òɡàlàhoma), Pawnee: Uukuhuúwa,Cayuga: Gahnawiyoˀgeh) is a state located in the South Central United States. Oklahoma is the 20th-most extensive and the 28th-most populous of the 50 United States. The state's name is derived from the Choctaw words okla and humma, meaning "red people". It is also known informally by its nickname, The Sooner State, in reference to the non-Native settlers who staked their claims on the choicest pieces of land before the official opening date, and the Indian Appropriations Act of 1889, which opened the door for white settlement in America's Indian Territory. The name was settled upon statehood, Oklahoma Territory and Indian Territory were merged and Indian was dropped from the name. On November 16, 1907, Oklahoma became the 46th state to enter the union. Its residents are known as Oklahomans, or informally "Okies", and its capital and largest city is Oklahoma City.