Missouri
Missouri's 114 sheriffs (plus St. Louis City and St. Louis County structural exceptions) are constitutional officers. Two structural anomalies dominate: Kansas City PD is uniquely state-controlled (RSMo ch. 84), not a county agency; and St. Louis County's "sheriff" is a civil-process officer only, with law-enforcement authority vested in the County Police Chief under an executive-appointed commission. No Missouri county has a civilian sheriff oversight body. The St. Louis City Civilian Oversight Board became effectively defunct when Missouri retook state control of SLMPD in March 2025.
Counties
| # | County | Oversight body | LE capability | Independence |
|---|---|---|---|---|
| No oversight body established | ||||
| 01 | Adair | — | — | — |
| 02 | Andrew | — | — | — |
| 03 | Atchison | — | — | — |
| 04 | Audrain | — | — | — |
| 05 | Barry | — | — | — |
| 06 | Barton | — | — | — |
| 07 | Bates | — | — | — |
| 08 | Benton | — | — | — |
| 09 | Bollinger | — | — | — |
| 10 | Boone | — | — | — |
| 11 | Buchanan | — | — | — |
| 12 | Butler | — | — | — |
| 13 | Caldwell | — | — | — |
| 14 | Callaway | — | — | — |
| 15 | Camden | — | — | — |
| 16 | Cape Girardeau | — | — | — |
| 17 | Carroll | — | — | — |
| 18 | Carter | — | — | — |
| 19 | Cass | — | — | — |
| 20 | Cedar | — | — | — |
| 21 | Chariton | — | — | — |
| 22 | Christian | — | — | — |
| 23 | Clark | — | — | — |
| 24 | Clay | — | — | — |
| 25 | Clinton | — | — | — |
| 26 | Cole | — | — | — |
| 27 | Cooper | — | — | — |
| 28 | Crawford | — | — | — |
| 29 | Dade | — | — | — |
| 30 | Dallas | — | — | — |
| 31 | Daviess | — | — | — |
| 32 | DeKalb | — | — | — |
| 33 | Dent | — | — | — |
| 34 | Douglas | — | — | — |
| 35 | Dunklin | — | — | — |
| 36 | Franklin | — | — | — |
| 37 | Gasconade | — | — | — |
| 38 | Gentry | — | — | — |
| 39 | Greene | — | — | — |
| 40 | Grundy | — | — | — |
| 41 | Harrison | — | — | — |
| 42 | Henry | — | — | — |
| 43 | Hickory | — | — | — |
| 44 | Holt | — | — | — |
| 45 | Howard | — | — | — |
| 46 | Howell | — | — | — |
| 47 | Iron | — | — | — |
| 48 | Jackson | — | — | — |
| 49 | Jasper | — | — | — |
| 50 | Jefferson | — | — | — |
| 51 | Johnson | — | — | — |
| 52 | Knox | — | — | — |
| 53 | Laclede | — | — | — |
| 54 | Lafayette | — | — | — |
| 55 | Lawrence | — | — | — |
| 56 | Lewis | — | — | — |
| 57 | Lincoln | — | — | — |
| 58 | Linn | — | — | — |
| 59 | Livingston | — | — | — |
| 60 | Macon | — | — | — |
| 61 | Madison | — | — | — |
| 62 | Maries | — | — | — |
| 63 | Marion | — | — | — |
| 64 | McDonald | — | — | — |
| 65 | Mercer | — | — | — |
| 66 | Miller | — | — | — |
| 67 | Mississippi | — | — | — |
| 68 | Moniteau | — | — | — |
| 69 | Monroe | — | — | — |
| 70 | Montgomery | — | — | — |
| 71 | Morgan | — | — | — |
| 72 | New Madrid | — | — | — |
| 73 | Newton | — | — | — |
| 74 | Nodaway | — | — | — |
| 75 | Oregon | — | — | — |
| 76 | Osage | — | — | — |
| 77 | Ozark | — | — | — |
| 78 | Pemiscot | — | — | — |
| 79 | Perry | — | — | — |
| 80 | Pettis | — | — | — |
| 81 | Phelps | — | — | — |
| 82 | Pike | — | — | — |
| 83 | Platte | — | — | — |
| 84 | Polk | — | — | — |
| 85 | Pulaski | — | — | — |
| 86 | Putnam | — | — | — |
| 87 | Ralls | — | — | — |
| 88 | Randolph | — | — | — |
| 89 | Ray | — | — | — |
| 90 | Reynolds | — | — | — |
| 91 | Ripley | — | — | — |
| 92 | Saline | — | — | — |
| 93 | Schuyler | — | — | — |
| 94 | Scotland | — | — | — |
| 95 | Scott | — | — | — |
| 96 | Shannon | — | — | — |
| 97 | Shelby | — | — | — |
| 98 | St. Charles | — | — | — |
| 99 | St. Clair | — | — | — |
| 100 | Ste. Genevieve | — | — | — |
| 101 | St. Francois | — | — | — |
| 102 | St. Louis city | — | — | — |
| 103 | St. Louis | — | — | — |
| 104 | Stoddard | — | — | — |
| 105 | Stone | — | — | — |
| 106 | Sullivan | — | — | — |
| 107 | Taney | — | — | — |
| 108 | Texas | — | — | — |
| 109 | Vernon | — | — | — |
| 110 | Warren | — | — | — |
| 111 | Washington | — | — | — |
| 112 | Wayne | — | — | — |
| 113 | Webster | — | — | — |
| 114 | Worth | — | — | — |
| 115 | Wright | — | — | — |