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Oklahoma County is a county located in the central part of the U.S. state of Oklahoma. As of the 2020 census, the population was 796,292, [ 1] making it the most populous county in Oklahoma. The county seat is Oklahoma City, [ 2] the state capital and largest city.
The FIPS code for each county links to census data for that county. The area in these tables is land area, and does not include water area. Oklahoma's postal abbreviation is OK and its FIPS state code is 40 .
CountyFips Code [ 5]County Seat [ 6]Est.[ 6]1907190719071890- Oklahoma (OK) on The Us Map
- Map of Oklahoma Counties
- Interactive Map of Oklahoma Counties
- Largest Counties in Oklahoma by Population
- Smallest Counties in Oklahoma by Population
- More Notable Counties in Oklahoma
There are 77 counties in Oklahoma, and each boasts distinctive features. This post will explore these features in many of the state’s most notable counties, starting with the most populous. We’ll also look at an Oklahoma Counties Mapthat shows county borders as well as the major cities in each.
Below is a map of the 77 counties of Oklahoma(you can click on the map to enlarge it and to see the major city in each county).
Click on any of the counties on the map to see its population, economic data, time zone, and zip code (the data will appear below the map). Data is sourced from the US Census 2021.
Oklahoma County
Oklahoma County, established in 1890, is the most populous county in Oklahoma. It serves as the heart of the state, with Oklahoma City as its county seat and capital. This central location is a focal point for business, culture, and government, reflecting the state’s dynamic growth and diversity. The county is home to several notable attractions, including the Oklahoma City National Memorial & Museum, which honors the victims of the 1995 bombing and serves as a symbol of resilience. The Myria...
Tulsa County
Tulsa County, organized in 1907, is centered around Tulsa, the second-largest city in Oklahoma. The city is known for its Art Deco architecture, a remnant of its prosperous oil industry in the early 20th century. Key architectural landmarks include the Philcade and Philtower buildings, reflecting the city’s rich history. Tulsa boasts a strong arts and music culture, highlighted by the Tulsa Arts District and the Woody Guthrie Center, which celebrates the life and music of the iconic folk musi...
Cleveland County
Cleveland County, established in 1889, is located in the central part of Oklahoma, with Norman as its county seat. Norman is home to the University of Oklahoma, a major educational and cultural institution that attracts students and faculty from around the globe. The campus is noted for its beautiful architecture and the Sam Noble Oklahoma Museum of Natural History, one of the largest university-based natural history museums in the world. The county also hosts the National Weather Center, ref...
Cimarron County
Cimarron County, established in 1907with Oklahoma’s statehood, is located in the westernmost part of the state, bordering both Texas and New Mexico. It is the least populous county in the state, offering vast, unspoiled landscapes that include parts of the Black Mesa area, which contains Oklahoma’s highest point, Black Mesa. Boise City, the county seat, serves as a central point for community life and history in the area. The county is noted for its historical significance, particularly durin...
Harmon County
Harmon County, established in 1909, is located in southwestern Oklahoma, near the Texas border. It is one of the state’s least populous counties, offering a peaceful, rural lifestyle. The county seat, Hollis, is a small town embodying the community-oriented spirit typical of the area. Harmon County’s landscape is characterized by rolling plains and agricultural land, reflecting its economy’s strong reliance on farming and livestock. The county is home to the Hollis Municipal Airport, a testam...
Harper County
Harper County, established in 1907shortly before Oklahoma achieved statehood, is located in the northwestern part of the state. Buffalo, serving as the county seat, embodies the county’s enduring small-town values and agricultural roots. This county is characterized by its vast open spaces, rolling grasslands, and a strong sense of community among its residents. Agriculture plays a central role in Harper County’s economy, with wheat farming and cattle ranching being predominant. County fairsa...
Osage County
Osage County, established in 1907, is the largest county by area in Oklahoma and holds a unique place in both the state’s history and contemporary culture. Centered around Pawhuska, the county seat, Osage County is deeply intertwined with the Osage Nation, whose reservation encompasses much of the county. This relationship has shaped the region’s history, culture, and economy, particularly through oil production, which brought wealth and challenges in the early 20th century. The landscape of...
McCurtain County
McCurtain County, located in the southeastern corner of Oklahoma, is often referred to as part of “Little Dixie” due to its distinct cultural and historical ties to the Deep South. The county seat, Idabel, serves as a gateway to the region’s natural attractions, including the Ouachita National Forestand Beaver’s Bend State Park. These areas are renowned for their lush forests, clear rivers, and recreational opportunities, making McCurtain County a haven for outdoor enthusiasts. The county is...
Garfield County
Garfield County, established shortly after the Land Run of 1893, is located in northern Oklahoma, with Enid as its county seat and largest city. Enid’s history as a vibrant railroad town has evolved into a modern hub of commerce, culture, and education. The city is known for its grain storage capacity, one of the largest in the world, reflecting the county’s strong agricultural roots, particularly in wheat production. The county also plays a crucial role in the aerospace and defense sectors,...
5 days ago · This Oklahoma county map shows county borders and also has options to show county name labels, overlay city limits and townships and more. To do a county lookup by address, type the address into the “Search places” box above the map.
- This Oklahoma county lines map tool shows Oklahoma county lines on Google Maps. You can also show county name labels on the map by checking the box...
- You might need to know the Oklahoma county for an address to: - determine applicable laws or regulations based on county jurisdiction - determine w...
- This Oklahoma County Boundary Lines map tool shows Oklahoma county lines on Google Maps. Other tools on this website also show city limits, townshi...
- To find the Oklahoma county for an address, type the address in the 'Search places' box above this interactive Oklahoma county finder map. the Okla...
- To find your Oklahoma county using your address, type your address into the 'Search places' box above this map.
The U.S. state of Oklahoma is divided into 77 Counties. Explore the Oklahoma County Map, all Counties list along with their County Seats in alphabetical order and their population, areas and the date of formation.
S.nCountyCounty SeatPopulation1Adair CountyStilwell22,6832Alfalfa CountyCherokee5,6423Atoka CountyAtoka14,1824Beaver CountyBeaver5,636Oklahoma County is a county in the central part of the U.S. state of Oklahoma. At the 2020 census, 796,292 people lived there. [1] Its county seat is Oklahoma City.
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Oklahoma County is the most populated county in the state of Oklahoma with close to 800,000 people. This is primarily because the state capital, Oklahoma City , is located in this county. The least populated county in Oklahoma is Cimarron County with just over 2000 residents.