Oklahoma - Area of significance: Politics/Government
| Adair County Courthouse |
| Alfalfa County Courthouse |
| Ardmore Historic Commercial District |
| Armstrong Academy Site |
| Baccus House |
| Barnes-Steverson House |
| Beaver County Courthouse |
| Beckham County Courthouse |
| Berry, James E., House |
| Blaine County Courthouse |
| Boggy Depot Site |
| Boley Historic District |
| Bryan County Courthouse |
| Calvary Baptist Church |
| Canadian County Jail |
| Carnegie Library |
| Carter County Courthouse |
| Checotah City Hall |
| Cherokee National Capitol |
| Cherokee National Cemetery |
| Cherokee National Jail |
| Cherokee Supreme Court Building |
| Chickasaw National Capitols |
| Chief's House |
| Chilocco Indian Agricultural School |
| Choctaw Agency |
| Cimarron County Courthouse |
| City Hall |
| Cleveland County Courthouse |
| Co-Operative Publishing Company Building |
| Cotton County Courthouse |
| Craig County Courthouse |
| Creek County Courthouse |
| Daniel Webster High School Historic District |
| Davis, Grobin, Mound Group |
| Delaware School, District No. 64 |
| Dewey County Courthouse |
| Doaksville Site |
| Dobson Family House |
| Downtown Altus Historic District |
| Ellis County Courthouse |
| Federal Building and United States Court House |
| Federal Building and US Courthouse |
| Federal Building and US Courthouse |
| Ferguson, Thompson Benton, House |
| First Soil Conservation District Dedication Site |
| Fite, F. B., House and Servant's Quarters |
| Fort Cobb Site |
| Fort Davis |
| Fort Reno |
| Fort Towson |
| Gardner, Jefferson, House |
| Garfield County Courthouse |
| Garvin County Courthouse |
| Gould Community Building |
| Governors Mansion |
| Grady County Courthouse |
| Grand Town Site |
| Grant County Courthouse |
| Greer County Courthouse |
| Guthrie Historic District |
| Harmon County Courthouse |
| Harn House |
| Harper County Courthouse |
| Haskell County Courthouse |
| Heritage Hills Historic and Architectural District |
| Hobart City Hall |
| Holdenville City Hall |
| Hollis City Hall and Jail |
| Holy City of the Wichitas Historic District |
| Isparhecher House and Grave |
| Jackson County Courthouse |
| Jefferson County Courthouse |
| Jones, Charles G., Farmstead |
| Kaw Indian Agency |
| Kay County Courthouse |
| Keel Creek Bridge |
| Keokuk, Moses, House |
| Kingfisher Memorial Hall |
| Kiowa County Courthouse |
| Lake Ponca Duck Pond Historic District |
| LeFlore County Courthouse |
| Love County Courthouse |
| Major County Courthouse |
| Marshall County Courthouse |
| McAlester House |
| McClain County Courthouse |
| McCurtain, Edmund, House |
| McCurtain, Green, House |
| McIntosh County Courthouse |
| Meeker Town Hall |
| Mine Rescue Station |
| Murray County Courthouse |
| Murrell Home |
| Muskogee County Courthouse |
| Muskogee Municipal Building |
| Noble County Courthouse |
| Nowata County Courthouse |
| Okfuskee County Courthouse |
| Oklahoma State Capitol |
Data from United States Park Service and Wikidata
