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OKOklahoma Geography
Overview
Oklahoma occupies the 20th largest area among US states. Located in the South region, specifically the plains subregion, its physical geography reflects its position on the continent. The state is landlocked, with no direct ocean access.
Topography and landforms
- Part of the Great Plains
- In Tornado Alley
Rivers and water
Oklahoma has no major navigable rivers connecting to the ocean, which historically shaped its economic development.
Mountains and elevation
Oklahoma has moderate elevation across most of its territory, without dominating mountain ranges.
Climate and time zone
Oklahoma falls in the Central time zone. It lies in Tornado Alley, with peak severe weather season in spring.
National parks and protected areas
The National Park Service manages many sites in Oklahoma including national parks, national monuments, national forests, and historic sites. Outdoor recreation is significant — hiking, camping, hunting, fishing, and wildlife viewing.
Wildlife
Oklahoma's wildlife reflects its geography. Forests, plains, rivers, and (where applicable) coasts support a wide range of mammals, birds, fish, and reptiles. Protected populations of native species are maintained through state and federal wildlife management agencies.
Bordering states
Oklahoma shares borders with 6 other US states.
Daily geography puzzle
Statedoku uses geographic features (mountains, deserts, rivers, regions) as constraints — practice your map awareness in 5 minutes a day.
Play today's puzzle →Common questions about Oklahoma geography
What is the climate of Oklahoma?
Oklahoma observes Central Time and has a climate shaped by its location in the South region. Specific climate type varies — see the dedicated weather page for details.
How big is Oklahoma?
Oklahoma ranks #20 of 50 by area. It is mid-sized by US standards.
Does Oklahoma have mountains?
No major mountain ranges run through the state.
What national parks are in Oklahoma?
Oklahoma has several state parks and may contain national monuments or national forests. Check the National Park Service website for the current list.
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