Want to know about the largest to smallest counties in Oklahoma, USA in terms of total land area? Check this resource Oklahoma counties by land area to discover all the details regarding county map (boundary), and nearby counties.
On the other hand, check Oklahoma counties by population and Oklahoma cities by population to know more about city and county based demographic details.
What is the largest county in Oklahoma by land area?
Osage County is the largest county in Oklahoma spanning 2246.68 square miles, with an additional 57.35 square miles of water area. Following Osage County, Texas County ranks as the second largest in terms of land area, covering 2041.29 square miles, while McCurtain County secures the position as the third largest county in Oklahoma.
What is the smallest county by land area in Oklahoma?
Marshall County is the smallest in Oklahoma by total land area, covers about 371.49 square miles.
What is the largest county by population in Oklahoma?
Oklahoma County in Oklahoma, USA, stands as the most populous county having 796,292 residents as per the 2022 census data.
What is the smallest county by population in Oklahoma?
Cimarron County is the smallest in Oklahoma by total population, having 2,296 residents as per the 2022 census data.
Oklahoma Counties by Size
Rank
| County
in Oklahoma | Land Area
square miles | Water Area
square miles | Total Area
square miles |
|---|
| 1 | Osage County | 2,247 | 57 | 2,304 |
| 2 | Texas County | 2,041 | 7 | 2,049 |
| 3 | McCurtain County | 1,851 | 52 | 1,902 |
| 4 | Cimarron County | 1,835 | 6 | 1,841 |
| 5 | Beaver County | 1,815 | 3 | 1,818 |
| 6 | Le Flore County | 1,589 | 19 | 1,609 |
| 7 | Pushmataha County | 1,396 | 27 | 1,423 |
| 8 | Pittsburg County | 1,306 | 72 | 1,378 |
| 9 | Woods County | 1,286 | 4 | 1,290 |
| 10 | Caddo County | 1,278 | 12 | 1,290 |
| 11 | Woodward County | 1,243 | 4 | 1,247 |
| 12 | Ellis County | 1,231 | 0 | 1,232 |
| 13 | Roger Mills County | 1,141 | 5 | 1,146 |
| 14 | Grady County | 1,101 | 4 | 1,105 |
| 15 | Comanche County | 1,069 | 15 | 1,084 |
| 16 | Garfield County | 1,059 | 2 | 1,060 |
| 17 | Harper County | 1,039 | 2 | 1,041 |
| 18 | Kiowa County | 1,015 | 16 | 1,031 |
| 19 | Washita County | 1,003 | 6 | 1,009 |
| 20 | Grant County | 1,001 | 3 | 1,003 |
| 21 | Dewey County | 1,000 | 9 | 1,008 |
| 22 | Custer County | 989 | 13 | 1,002 |
| 23 | Atoka County | 975 | 14 | 990 |
| 24 | Major County | 955 | 3 | 958 |
| 25 | Lincoln County | 952 | 13 | 966 |
| 26 | Creek County | 950 | 20 | 970 |
| 27 | Blaine County | 928 | 10 | 939 |
| 28 | Kay County | 920 | 25 | 945 |
| 29 | Bryan County | 904 | 39 | 944 |
| 30 | Beckham County | 902 | 2 | 904 |
| 31 | Kingfisher County | 898 | 8 | 906 |
| 32 | Canadian County | 897 | 9 | 906 |
| 33 | Tillman County | 871 | 8 | 879 |
| 34 | Stephens County | 870 | 21 | 891 |
| 35 | Alfalfa County | 867 | 15 | 881 |
| 36 | Carter County | 822 | 11 | 834 |
| 37 | Muskogee County | 811 | 29 | 840 |
| 38 | Hughes County | 804 | 10 | 815 |
| 39 | Jackson County | 803 | 2 | 804 |
| 40 | Garvin County | 802 | 12 | 814 |
| 41 | Pottawatomie County | 788 | 6 | 794 |
| 42 | Choctaw County | 770 | 29 | 800 |
| 43 | Craig County | 761 | 1 | 763 |
| 44 | Jefferson County | 759 | 15 | 774 |
| 45 | Cherokee County | 749 | 27 | 776 |
| 46 | Logan County | 744 | 5 | 749 |
| 47 | Delaware County | 738 | 54 | 792 |
| 48 | Noble County | 732 | 11 | 743 |
| 49 | Latimer County | 722 | 7 | 729 |
| 50 | Pontotoc County | 720 | 5 | 725 |
| 51 | Oklahoma County | 709 | 10 | 718 |
| 52 | Okmulgee County | 697 | 5 | 702 |
| 53 | Payne County | 685 | 12 | 697 |
| 54 | Rogers County | 676 | 36 | 712 |
| 55 | Sequoyah County | 674 | 41 | 714 |
| 56 | Mayes County | 655 | 28 | 684 |
| 57 | Johnston County | 643 | 15 | 658 |
| 58 | Greer County | 639 | 4 | 644 |
| 59 | Seminole County | 633 | 8 | 641 |
| 60 | Cotton County | 633 | 9 | 642 |
| 61 | Okfuskee County | 618 | 10 | 629 |
| 62 | McIntosh County | 618 | 94 | 712 |
| 63 | Haskell County | 577 | 49 | 625 |
| 64 | Adair County | 574 | 3 | 577 |
| 65 | McClain County | 571 | 10 | 580 |
| 66 | Tulsa County | 570 | 17 | 587 |
| 67 | Pawnee County | 568 | 27 | 595 |
| 68 | Nowata County | 566 | 15 | 581 |
| 69 | Wagoner County | 562 | 29 | 591 |
| 70 | Cleveland County | 539 | 19 | 558 |
| 71 | Harmon County | 537 | 1 | 539 |
| 72 | Coal County | 517 | 5 | 521 |
| 73 | Love County | 514 | 18 | 532 |
| 74 | Ottawa County | 471 | 14 | 485 |
| 75 | Murray County | 416 | 9 | 425 |
| 76 | Washington County | 416 | 9 | 424 |
| 77 | Marshall County | 371 | 55 | 427 |
