Oklahoma is divided into 77 counties, each with its own local government and unique characteristics. Use this interactive map and advanced search tools to explore Oklahoma’s counties, major cities, towns, and ZIP codes.
Click on any county below to explore more about it.
You can download the Oklahoma County Map from below:
The largest county in Oklahoma by area is Osage County.
Osage County is not only the largest in Oklahoma but also historically significant as it is home to the Osage Nation, and was the setting for events depicted in the book and movie Killers of the Flower Moon.
The smallest county in Oklahoma by land area is Marshall County, encompassing approximately 371 square miles of land. Situated in the southern part of the state, it borders Texas and is partially defined by Lake Texoma, which accounts for about 13% of its total area .
Oklahoma has 77 counties.
Source: Wikipedia, Census.gov
