| Adair County | 3 | 2,724 | Kirksville R-III, Adair Co. R-I, Adair Co. R-II |
| Andrew County | 3 | 2,892 | Savannah R-III, North Andrew Co. R-Vi, Avenue City R-Ix |
| Atchison County | 3 | 819 | Rock Port R-II, Tarkio R-I, Fairfax R-III |
| Audrain County | 3 | 3,243 | Mexico 59, Van-Far R-I, Community R-Vi |
| Barry County | 7 | 6,498 | Monett R-I, Cassville R-IV, Southwest R-V, Purdy R-II, Wheaton R-III, Exeter R-Vi, Shell Knob 78 |
| Barton County | 3 | 1,593 | Lamar R-I, Liberal R-II, Golden City R-III |
| Bates County | 7 | 2,514 | Butler R-V, Adrian R-III, Rich Hill R-IV, Miami R-I, Hume R-Viii, Ballard R-II, Hudson R-Ix |
| Benton County | 3 | 2,475 | Warsaw R-Ix, Cole Camp R-I, Lincoln R-II |
| Bollinger County | 4 | 1,725 | Woodland R-IV, Meadow Heights R-II, Leopold R-III, Zalma R-V |
| Boone County | 6 | 26,884 | Columbia 93, Sturgeon R-V, Southern Boone Co. R-I, Hallsville R-IV, Centralia R-Vi, Harrisburg R-Viii |
| Buchanan County | 3 | 11,598 | St. Joseph, Mid-Buchanan Co. R-V, Buchanan Co. R-IV |
| Butler County | 3 | 6,328 | Poplar Bluff R-I, Twin Rivers R-X, Neelyville R-IV |
| Caldwell County | 8 | 1,441 | Hamilton R-II, Polo R-Vii, Braymer C-4, Breckenridge R-I, Cowgill R-Vi, Kingston 42, Mirabile C-1, New York R-IV |
| Callaway County | 4 | 4,724 | Fulton 58, North Callaway Co. R-I, South Callaway Co. R-II, New Bloomfield R-III |
| Camden County | 4 | 4,745 | Camdenton R-III, Stoutland R-II, Macks Creek R-V, Climax Springs R-IV |
| Cape Girardeau County | 5 | 10,897 | Jackson R-II, Cape Girardeau 63, Oak Ridge R-Vi, Nell Holcomb R-IV, Delta R-V |
| Carroll County | 5 | 1,268 | Carrollton R-Vii, Norborne R-Viii, Tina-Avalon R-II, Hale R-I, Bosworth R-V |
| Carter County | 2 | 1,164 | East Carter Co. R-II, Van Buren R-I |
| Cass County | 10 | 17,084 | Raymore-Peculiar R-II, Belton 124, Harrisonville R-Ix, Pleasant Hill R-III, Sherwood Cass R-Viii, Archie R-V, Midway R-I, Drexel R-IV, East Lynne 40, Strasburg C-3 |
| Cedar County | 2 | 2,080 | El Dorado Springs R-II, Stockton R-I |
| Chariton County | 4 | 992 | Salisbury R-IV, Brunswick R-II, Northwestern R-I, Keytesville R-III |
| Christian County | 7 | 16,175 | Nixa Public Schools, Ozark R-Vi, Clever R-V, Spokane R-Vii, Sparta R-III, Billings R-IV, Chadwick R-I |
| Clark County | 1 | 1,074 | Clark Co. R-I |
| Clay County | 6 | 41,691 | North Kansas City 74, Liberty 53, Kearney R-I, Excelsior Springs 40, Smithville R-II, Missouri City 56 |
| Clinton County | 4 | 3,859 | Cameron R-I, Lathrop R-II, Clinton Co. R-III, East Buchanan Co. C-1 (025076) |
| Cole County | 4 | 10,887 | Jefferson City, Blair Oaks R-II, Cole Co. R-V, Cole Co. R-I |
| Cooper County | 6 | 2,425 | Boonville R-I, Otterville R-Vi, Pilot Grove C-4, Prairie Home R-V, Blackwater R-II, Cooper Co. R-IV |
| Crawford County | 2 | 1,735 | Steelville R-III, Crawford Co. R-I |
| Dade County | 4 | 1,061 | Greenfield R-IV, Lockwood R-I, Dadeville R-II, Everton R-III |
| Dallas County | 1 | 1,689 | Dallas Co. R-I |
| Daviess County | 5 | 1,078 | Gallatin R-V, Pattonsburg R-II, Tri-County R-Vii, Winston R-Vi, North Daviess R-III |
| DeKalb County | 4 | 1,028 | Maysville R-I, Stewartsville C-2, Union Star R-II, Osborn R-O |
| Dent County | 5 | 2,164 | Salem R-80, Dent-Phelps R-III, North Wood R-IV, Green Forest R-II, Oak Hill R-I |
| Douglas County | 2 | 1,423 | Ava R-I, Plainview R-Viii |
| Dunklin County | 7 | 4,838 | Kennett 39, Malden R-I, Senath-Hornersville C-8, Campbell R-II, Holcomb R-III, Clarkton C-4, Southland C-9 |
| Franklin County | 10 | 14,802 | Washington, Union R-Xi, Meramec Valley R-III, St. Clair R-Xiii, Sullivan, New Haven, Lonedell R-14, Spring Bluff R-Xv, Franklin Co. R-II, Strain-Japan R-Xvi |
| Gasconade County | 2 | 2,584 | Gasconade Co. R-II, Gasconade Co. R-I |
| Gentry County | 3 | 1,161 | Albany R-III, Stanberry R-II, King City R-I |
| Greene County | 7 | 37,960 | Springfield R-Xii, Republic R-III, Willard R-II, Strafford R-Vi, Fair Grove R-X, Ash Grove R-IV, Walnut Grove R-V |
| Grundy County | 5 | 1,319 | Trenton R-Ix, Pleasant View R-Vi, Grundy Co. R-V, Laredo R-Vii, Spickard R-II |
| Harrison County | 5 | 1,269 | South Harrison Co. R-II, North Harrison R-III, Gilman City R-IV, Cainsville R-I, Ridgeway R-V |
| Henry County | 7 | 2,878 | Clinton, Henry Co. R-I, Leesville R-Ix, Montrose R-Xiv, Calhoun R-Viii, Shawnee R-III, Davis R-Xii |
| Hickory County | 5 | 1,706 | Hickory Co. R-I, Weaubleau R-III, Hermitage R-IV, Wheatland R-II, Skyline R-II |
| Holt County | 3 | 508 | Mound City R-II, South Holt Co. R-I, Craig R-III |
| Howard County | 3 | 1,373 | Fayette R-III, New Franklin R-I, Glasgow |
| Howell County | 8 | 6,475 | West Plains R-Vii, Mountain View-Birch Tree R-III, Willow Springs R-IV, Fairview R-Xi, Richards R-V, Glenwood R-Viii, Howell Valley R-I, Junction Hill C-12 |
| Iron County | 4 | 1,669 | Arcadia Valley R-II, Iron Co. C-4, South Iron Co. R-I, Belleview R-III |
| Jackson County | 12 | 92,475 | All 12 Jackson County districts → |
| Jasper County | 7 | 22,155 | Joplin Schools, Carthage R-Ix, Webb City R-Vii, Carl Junction R-I, Sarcoxie R-II, Jasper Co. R-V, Avilla R-Xiii |
| Jefferson County | 11 | 36,157 | Fox C-6, Northwest R-I, Grandview R-II, Festus R-Vi, Hillsboro R-III, Windsor C-1, Desoto 73, Dunklin R-V, Jefferson Co. R-Vii, Crystal City 47, Sunrise R-Ix |
| Johnson County | 7 | 8,058 | Warrensburg R-Vi, Knob Noster R-Viii, Holden R-III, Johnson Co. R-Vii, Leeton R-X, Kingsville R-I, Chilhowee R-IV |
| Knox County | 1 | 498 | Knox Co. R-I |
| Laclede County | 4 | 5,763 | Lebanon R-III, Laclede Co. R-I, Laclede Co. C-5, Gasconade C-4 |
| Lafayette County | 7 | 6,212 | Odessa R-Vii, Crawford Co. R-II, Lafayette Co. C-1, Lexington R-V, Concordia R-II, Wellington-Napoleon R-Ix, Santa Fe R-X |
| Lawrence County | 6 | 5,699 | Aurora R-Viii, Mt. Vernon R-V, Marionville R-Ix, Pierce City R-Vi, Miller R-II, Verona R-Vii |
| Lewis County | 2 | 1,416 | Lewis Co. C-1, Canton R-V |
| Lincoln County | 4 | 9,865 | Troy R-III, Winfield R-IV, Elsberry R-II, Silex R-I |
| Linn County | 5 | 2,070 | Brookfield R-III, Marceline R-V, Meadville R-IV, Linn Co. R-I, Bucklin R-II |
| Livingston County | 3 | 1,952 | Chillicothe R-II, Southwest Livingston Co. R-I, Livingston Co. R-III |
| Macon County | 6 | 2,073 | Macon Co. R-I, La Plata R-II, Atlanta C-3, Bevier C-4, Macon Co. R-IV, Callao C-8 |
| Madison County | 2 | 2,011 | Fredericktown R-I, Marquand-Zion R-Vi |
| Maries County | 2 | 1,120 | Maries Co. R-II, Maries Co. R-I |
| Marion County | 3 | 4,699 | Hannibal 60, Palmyra R-I, Marion Co. R-II |
| McDonald County | 1 | 3,595 | McDonald Co. R-I |
| Mercer County | 2 | 468 | Princeton R-V, North Mercer Co. R-III |
| Miller County | 5 | 5,162 | Eldon R-I, School of the Osage, Iberia R-V, St. Elizabeth R-IV, Miller Co. R-III |
| Mississippi County | 2 | 1,730 | East Prairie R-II, Charleston R-I |
| Moniteau County | 6 | 2,223 | Moniteau Co. R-I, Tipton R-Vi, Jamestown C-1, High Point R-III, Clarksburg C-2, Moniteau Co. R-V |
| Monroe County | 5 | 1,520 | Monroe City R-I, Paris R-II, Madison C-3, Holliday C-2, Middle Grove C-1 |
| Montgomery County | 2 | 1,336 | Montgomery Co. R-II, Wellsville Middletown R-I |
| Morgan County | 2 | 2,137 | Morgan Co. R-II, Morgan Co. R-I |
| New Madrid County | 4 | 2,305 | New Madrid Co. R-I, Portageville, Gideon 37, Risco R-II |
| Newton County | 5 | 8,843 | Neosho School District, Seneca R-Vii, East Newton Co. R-Vi, Diamond R-IV, Westview C-6 |
| Nodaway County | 7 | 2,526 | Maryville R-II, West Nodaway Co. R-I, Nodaway-Holt R-Vii, Northeast Nodaway Co. R-V, North Nodaway Co. R-Vi, South Nodaway Co. R-IV, Jefferson C-123 |
| Oregon County | 4 | 1,750 | Thayer R-II, Alton R-IV, Oregon-Howell R-III, Couch R-I |
| Osage County | 3 | 1,460 | Osage Co. R-III, Osage Co. R-II, Osage Co. R-I |
| Ozark County | 5 | 1,458 | Gainesville R-V, Bakersfield R-IV, Dora R-III, Lutie R-Vi, Thornfield R-I |
| Pemiscot County | 8 | 2,865 | Caruthersville 18, Hayti R-II, South Pemiscot Co. R-V, North Pemiscot Co. R-I, Cooter R-IV, Delta C-7, Pemiscot Co. R-III, Pemiscot Co. Spec. Sch. Dist. |
| Perry County | 2 | 2,216 | Perry Co. 32, Altenburg 48 |
| Pettis County | 6 | 6,809 | Sedalia 200, Smithton R-Vi, Green Ridge R-Viii, Pettis Co. R-V, La Monte R-IV, Pettis Co. R-Xii |
| Phelps County | 4 | 6,189 | Rolla 31, St. James R-I, Newburg R-II, Phelps Co. R-III |
| Pike County | 4 | 2,574 | Bowling Green R-I, Louisiana R-II, Pike Co. R-III, Boncl R-X |
| Platte County | 4 | 17,612 | Park Hill, Platte Co. R-III, West Platte Co. R-II, North Platte Co. R-I |
| Polk County | 6 | 4,893 | Bolivar R-I, Pleasant Hope R-Vi, Marion C. Early R-V, Fair Play R-II, Humansville R-IV, Halfway R-III |
| Pulaski County | 6 | 10,026 | Waynesville R-Vi, Laquey R-V, Dixon R-I, Crocker R-II, Richland R-IV, Swedeborg R-III |
| Putnam County | 1 | 605 | Putnam Co. R-I |
| Ralls County | 1 | 800 | Ralls Co. R-II |
| Randolph County | 5 | 3,325 | Moberly, Westran R-I, Northeast Randolph Co. R-IV, Higbee R-Viii, Renick R-V |
| Ray County | 4 | 3,184 | Richmond R-Xvi, Lawson R-Xiv, Orrick R-Xi, Hardin-Central C-2 |
| Reynolds County | 4 | 854 | Southern Reynolds Co. R-II, Bunker R-III, Lesterville R-IV, Centerville R-I |
| Ripley County | 4 | 2,107 | Doniphan R-I, Naylor R-II, Ripley Co. R-IV, Ripley Co. R-III |
| Saline County | 8 | 3,537 | Marshall, Slater, Sweet Springs R-Vii, Malta Bend R-V, Miami R-I, Hardeman R-X, Orearville R-IV, Gilliam C-4 |
| Schuyler County | 1 | 573 | Schuyler Co. R-I |
| Scotland County | 1 | 505 | Scotland Co. R-I |
| Scott County | 7 | 6,319 | Sikeston R-6, Scott Co. R-IV, Scott City R-I, Chaffee R-II, Oran R-III, Scott Co. Central, Kelso C-7 |
| Shannon County | 2 | 696 | Winona R-III, Eminence R-I |
| Shelby County | 2 | 931 | Shelby Co. R-IV, North Shelby |
| St. Charles County | 5 | 59,024 | Wentzville R-IV, Francis Howell R-III, Fort Zumwalt School District, St. Charles R-Vi, Orchard Farm R-V |
| St. Clair County | 4 | 1,410 | Osceola, Lakeland R-III, Appleton City R-II, Roscoe C-1 |
| St. Francois County | 5 | 9,940 | Farmington R-Vii, North St. Francois Co. R-I, Central R-III, West St. Francois Co. R-IV, Bismarck R-V |
| St. Louis city | 1 | 17,933 | St. Louis City |
| St. Louis County | 23 | 134,235 | All 23 St. Louis County districts → |
| Ste. Genevieve County | 1 | 1,926 | Ste. Genevieve Co. R-II |
| Stoddard County | 7 | 4,700 | Dexter R-Xi, Puxico R-Viii, Bloomfield R-Xiv, Bernie R-Xiii, Advance R-IV, Richland R-I, Bell City R-II |
| Stone County | 5 | 3,406 | Reeds Spring R-IV, Crane R-III, Blue Eye R-V, Galena R-II, Hurley R-I |
| Sullivan County | 3 | 341 | Green City R-I, Newtown-Harris R-III, Milan C-2 |
| Taney County | 7 | 7,946 | Branson R-IV, Hollister R-V, Forsyth R-III, Kirbyville R-Vi, Bradleyville R-I, Taneyville R-II, Mark Twain R-Viii |
| Texas County | 7 | 3,752 | Houston R-I, Licking R-Viii, Cabool R-IV, Plato R-V, Summersville R-II, Raymondville R-Vii, Success R-Vi |
| Vernon County | 4 | 2,887 | Nevada R-V, Sheldon R-Viii, Northeast Vernon Co. R-I, Bronaugh R-Vii |
| Warren County | 2 | 4,856 | Warren Co. R-III, Wright City R-II of Warren Co. |
| Washington County | 4 | 3,446 | Potosi R-III, Kingston K-14, Valley R-Vi, Richwoods R-Vii |
| Wayne County | 2 | 1,496 | Clearwater R-I, Greenville R-II |
| Webster County | 5 | 7,074 | Marshfield R-I, Logan-Rogersville R-Viii, Seymour R-II, Fordland R-III, Niangua R-V |
| Worth County | 1 | 295 | Worth Co. R-III |
| Wright County | 5 | 3,150 | Mountain Grove R-III, Hartville R-II, Mansfield R-IV, Norwood R-I, Manes R-V |
