CMS Medicare enrollment · April 2026
Oklahoma Medicare Enrollment
State and county enrollment from CMS, including Original Medicare, Medicare Advantage and Other Health Plans, and Part D coverage.
Informational only. These enrollment counts do not compare plans or provide medical, financial, or enrollment advice.
Oklahoma enrollment figures
- Total Medicare enrollment
- 827.5K
- Original Medicare
- 476K
- MA & Other share
- 42.5%
- Part D coverage
- 75.4%
827,484
476,020 beneficiaries
CMS combined delivery-system measure
623,787 beneficiaries
County enrollment
78 CMS county rows for Oklahoma. Unavailable values remain marked as not reported rather than estimated.
| County | Total | Original Medicare | MA & Other | MA & Other share | Part D share |
|---|---|---|---|---|---|
| Adair County | 4,570 | 2,468 | 2,102 | 46% | 66.7% |
| Alfalfa County | 1,186 | 941 | 245 | 20.7% | 77.1% |
| Atoka County | 3,106 | 2,082 | 1,024 | 33% | 73% |
| Beaver County | 1,034 | 871 | 163 | 15.8% | 73.2% |
| Beckham County | 4,326 | 3,342 | 984 | 22.7% | 77.8% |
| Blaine County | 2,121 | 1,497 | 624 | 29.4% | 78.5% |
| Bryan County | 10,513 | 6,736 | 3,777 | 35.9% | 74.7% |
| Caddo County | 6,435 | 4,198 | 2,237 | 34.8% | 74.3% |
| Canadian County | 28,903 | 16,707 | 12,196 | 42.2% | 75.5% |
| Carter County | 11,727 | 7,475 | 4,252 | 36.3% | 76% |
| Cherokee County | 10,286 | 6,295 | 3,991 | 38.8% | 67.3% |
| Choctaw County | 3,908 | 2,466 | 1,442 | 36.9% | 72.9% |
| Cimarron County | 536 | 424 | 112 | 20.9% | 75.2% |
| Cleveland County | 53,439 | 31,576 | 21,863 | 40.9% | 73.7% |
| Coal County | 1,250 | 800 | 450 | 36% | 71.8% |
| Comanche County | 21,859 | 14,206 | 7,653 | 35% | 57.1% |
| Cotton County | 1,334 | 960 | 374 | 28% | 67.8% |
| Craig County | 3,911 | 2,262 | 1,649 | 42.2% | 74.9% |
| Creek County | 17,266 | 7,390 | 9,876 | 57.2% | 80% |
| Custer County | 5,129 | 3,724 | 1,405 | 27.4% | 77.2% |
| Delaware County | 11,705 | 6,363 | 5,342 | 45.6% | 74.1% |
| Dewey County | 1,167 | 959 | 208 | 17.8% | 74.2% |
| Ellis County | 954 | 811 | 143 | 15% | 76.7% |
| Garfield County | 12,904 | 9,153 | 3,751 | 29.1% | 77.9% |
| Garvin County | 6,565 | 3,843 | 2,722 | 41.5% | 76.4% |
| Grady County | 11,633 | 7,194 | 4,439 | 38.2% | 75.9% |
| Grant County | 1,031 | 792 | 239 | 23.2% | 81.9% |
| Greer County | 1,303 | 960 | 343 | 26.3% | 74.8% |
| Harmon County | 596 | 431 | 165 | 27.7% | 76.5% |
| Harper County | 868 | 773 | 95 | 10.9% | 79.4% |
| Haskell County | 3,091 | 1,922 | 1,169 | 37.8% | 74.7% |
| Hughes County | 3,074 | 1,852 | 1,222 | 39.8% | 73.4% |
| Jackson County | 4,727 | 3,506 | 1,221 | 25.8% | 62.1% |
| Jefferson County | 1,510 | 1,087 | 423 | 28% | 72.3% |
| Johnston County | 2,606 | 1,602 | 1,004 | 38.5% | 72.5% |
| Kay County | 10,762 | 6,870 | 3,892 | 36.2% | 78.9% |
| Kingfisher County | 3,274 | 2,333 | 941 | 28.7% | 81.9% |
| Kiowa County | 2,296 | 1,512 | 784 | 34.1% | 78% |
| Latimer County | 2,599 | 1,673 | 926 | 35.6% | 68.6% |
| Le Flore County | 11,874 | 6,730 | 5,144 | 43.3% | 75.8% |
| Lincoln County | 8,172 | 4,484 | 3,688 | 45.1% | 75.2% |
| Logan County | 10,100 | 5,794 | 4,306 | 42.6% | 76.1% |
| Love County | 2,366 | 1,543 | 823 | 34.8% | 77.6% |
| Major County | 1,755 | 1,439 | 316 | 18% | 79.5% |
| Marshall County | 4,344 | 2,696 | 1,648 | 37.9% | 75% |
| Mayes County | 10,024 | 5,195 | 4,829 | 48.2% | 74.7% |
| Mcclain County | 10,270 | 6,224 | 4,046 | 39.4% | 73.4% |
| Mccurtain County | 7,394 | 5,159 | 2,235 | 30.2% | 74% |
| Mcintosh County | 5,941 | 3,342 | 2,599 | 43.7% | 72.5% |
| Murray County | 3,418 | 2,535 | 883 | 25.8% | 72.2% |
| Muskogee County | 16,283 | 9,571 | 6,712 | 41.2% | 71.5% |
| Noble County | 2,658 | 2,005 | 653 | 24.6% | 79.4% |
| Nowata County | 2,487 | 1,418 | 1,069 | 43% | 74.6% |
| Okfuskee County | 2,666 | 1,466 | 1,200 | 45% | 73.9% |
| Oklahoma County | 146,912 | 79,982 | 66,930 | 45.6% | 76% |
| Okmulgee County | 9,306 | 4,568 | 4,738 | 50.9% | 75.4% |
| Osage County | 9,580 | 4,916 | 4,664 | 48.7% | 78.4% |
| Ottawa County | 8,140 | 4,229 | 3,911 | 48% | 75.2% |
| Pawnee County | 3,954 | 2,196 | 1,758 | 44.5% | 75.7% |
| Payne County | 13,936 | 10,924 | 3,012 | 21.6% | 77% |
| Pittsburg County | 10,679 | 6,692 | 3,987 | 37.3% | 70.9% |
| Pontotoc County | 8,463 | 5,784 | 2,679 | 31.7% | 71.8% |
| Pottawatomie County | 16,804 | 9,183 | 7,621 | 45.4% | 74.1% |
| Pushmataha County | 3,093 | 1,938 | 1,155 | 37.3% | 71.8% |
| Roger Mills County | 828 | 694 | 134 | 16.2% | 73.8% |
| Rogers County | 20,799 | 10,488 | 10,311 | 49.6% | 76.4% |
| Seminole County | 5,520 | 2,837 | 2,683 | 48.6% | 77.2% |
| Sequoyah County | 10,594 | 5,699 | 4,895 | 46.2% | 71.9% |
| Stephens County | 11,284 | 8,270 | 3,014 | 26.7% | 74% |
| Texas County | 2,740 | 2,226 | 514 | 18.8% | 73.7% |
| Tillman County | 1,641 | 1,041 | 600 | 36.6% | 75.3% |
| Tulsa County | 128,840 | 61,674 | 67,166 | 52.1% | 79.7% |
| Unknown | Not reported | Not reported | Not reported | Not reported | Not reported |
| Wagoner County | 18,003 | 8,776 | 9,227 | 51.3% | 76.1% |
| Washington County | 12,859 | 7,863 | 4,996 | 38.9% | 78% |
| Washita County | 2,526 | 1,852 | 674 | 26.7% | 76.2% |
| Woods County | 1,780 | 1,467 | 313 | 17.6% | 80.7% |
| Woodward County | 3,947 | 3,064 | 883 | 22.4% | 80.7% |
Source and interpretation
CMS Medicare Monthly Enrollment, April 2026, published 2026-07-23. “MA & Other” retains the official combined CMS field label.
- CMS suppresses some small counts with an asterisk; suppressed values remain null in this snapshot.
- Medicare Advantage and Other Health Plans is the CMS-published combined measure and is not limited to Medicare Advantage alone.
- Enrollment counts describe a reporting month and do not compare plan benefits, provider networks, quality, or personal costs.