St. Louis
In Illinois services:
| Adams | Gallatin | Pike |
| Alexander | Greene | Pope |
| Bond | Hamilton | Pulaski |
| Brown | Hardin | Randolph |
| Calhoun | Jackson | Richland |
| Christian | Jasper | St. Clair |
| Clark | Jefferson | Saline |
| Clay | Jersey | Scott |
| Clinton | Johnson | Shelby |
| Coles | Lawrence | Union |
| Crawford | Macoupin | Wabash |
| Cumberland | Madison | Washington |
| Edgar | Marion | Wayne |
| Edwards | Massac | White |
| Effingham | Monroe | Williamson Counties |
| Fayette | Montgomery | |
| Franklin | Perry |
In Missouri, services:
| Audrain | Lewis | Ripley |
| Bollinger | Lincoln | St. Charles |
| Butler | Madison | St. Francois |
| Callaway | Maries | St. Louis |
| Cape Girardeau | Marion | St. Genevieve |
| Carter | Monroe | Scotland |
| Clark | Montgomery | Scott |
| Crawford | Oregon | Shannon |
| Dent | Osage | Shelby |
| Franklin | Perry | Stoddard |
| Gasconade | Phelps | Warren |
| Iron | Pike | Washington |
| Jefferson | Ralls | Wayne Counties |
| Knox | Reynolds | the Independent City of St. Louis |
| Adair | De Kalb | Moniteau |
| Andrew | Douglas | Morgan |
| Atchison | Gentry | Newton |
| Barry | Greene | Nodaway |
| Barton | Grundy | Ozark |
| Bates | Harrison | Pettis |
| Benton | Henry | Platte |
| Boone | Hickory | Polk |
| Buchanan | Holt | Pulaski |
| Caldwell | Howard | Putnam |
| Camden | Howell | Randolph |
| Carroll | Jackson | Ray |
| Cass | Jasper | St. Clair |
| Cedar | Johnson | Saline |
| Chariton | Laclede | Schuyler |
| Christian | Lafayette | Stone |
| Clay | Lawrence | Sullivan |
| Clinton | Linn | Taney |
| Cole | Livingston | Texas |
| Cooper | McDonald | Vernon |
| Dade | Macon | Webster |
| Dallas | Mercer | Worth |
| Daviess | Miller | Wright Counties |
In Iowa, services:
| Fremont | Mills | Pottawattamie Counties |
In Nebraska, services:
| Adams | Gage | Nuckolls |
| Antelope | Garfield | Otoe |
| Arthur | Gosper | Pawnee |
| Blaine | Grant | Perkins |
| Boone | Greeley | Phelps |
| Boyd | Hall | Pierce |
| Brown | Hamilton | Platte |
| Buffalo | Harlan | Polk |
| Burt | Hayes | Red Willow |
| Butler | Hitchcock | Richardson |
| Cass | Holt | Rock |
| Cedar | Hooker | Saline |
| Chase | Howard | Sarpy |
| Cherry | Jefferson | Saunders |
| Clay | Johnson | Seward |
| Colfax | Kearney | Sherman |
| Cuming | Keith | Stanton |
| Custer | Keya Paha | Thayer |
| Dakota | Knox | Thomas |
| Dawson | Lancaster | Thurston |
| Dixon | Lincoln | Valley |
| Dodge | Logan | Washington |
| Douglas | Loup | Wayne |
| Dundy | McPherson | Webster |
| Fillmore | Madison | Wheeler |
| Franklin | Merrick | York Counties |
| Frontier | Nance | |
| Furnas | Nemaha |
Persons may also obtain service at the Resident Office in Tulsa, Oklahoma.
Established in 1935, the National Labor Relations Board is an independent federal agency that protects employees, employers, and unions from unfair labor practices and protects the right of private sector employees to join together, with or without a union, to improve wages, benefits and working conditions. The NLRB conducts hundreds of workplace elections and investigates thousands of unfair labor practice charges each year. Region 14 serves areas in Illinois, Iowa, Kansas, Missouri, Nebraska, Oklahoma from its Regional Office in St. Louis, its Subregional Office in Overland Park, and its Resident Office in Tulsa.