OKOklahoma
Sooner State · Capital: Oklahoma City · South (Plains)
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Quick stats
Capital
Oklahoma City
Largest city
Oklahoma City
Population
1–5 million
Area rank
#20 of 50
Admitted
1907
Time zone
Central Time
Region
South
Letters
8
Bordering states: Colorado, Kansas, Missouri, Arkansas, Texas, New Mexico.
4 fun facts about Oklahoma
- Oklahoma has more man-made lakes than any other state (over 200).
- The state was settled in a literal race — the 1889 Land Rush, where settlers raced from the border to claim plots.
- OKC bombed the federal building in 1995 (Murrah Building) was the deadliest domestic terror attack pre-9/11.
- Garth Brooks, Brad Pitt, and Reba McEntire are all from Oklahoma.
Frequently asked questions about Oklahoma
Is Oklahoma a US state?
Yes, Oklahoma is one of the 50 US states. It was admitted to the Union in 1907, making it the 46th state. Its capital is Oklahoma City and its largest city is Oklahoma City.
What is the capital of Oklahoma?
The capital of Oklahoma is Oklahoma City.
When did Oklahoma become a state?
Oklahoma became a US state in 1907. It is the 46th state admitted to the Union.
What is the abbreviation for Oklahoma?
The 2-letter USPS abbreviation for Oklahoma is OK.
How big is Oklahoma?
Oklahoma ranks #20 of 50 US states by area — a mid-sized US state.
What is the population of Oklahoma?
Oklahoma has a population of 1 to 5 million.
What region is Oklahoma in?
Oklahoma is in the South region of the United States, per the US Census Bureau.
What time zone is Oklahoma in?
Oklahoma observes Central Time.
Learn more
→ How to learn the 50 states (full guide)