Missouri - Area of significance: Architecture
| Cleveland Apartments |
| Clifford-Wyrick House |
| Clinton House |
| Clinton Square Historic District |
| Coates House Hotel |
| Coca-Cola Bottling Company Building |
| Coca-Cola Building |
| Colchester Apartments |
| Cole, Arthur W., and Chloe B., House |
| Cole County Courthouse and Jail-Sheriff's House |
| Cole County Historical Society Building |
| Coleman Hall |
| Coleman, Lewis Shaw, House |
| Colonial Apartments |
| Colonial Hotel |
| Colonnade Apartment Building at 4302 Oak Street |
| Columbia National Guard Armory |
| Comfort, James H. and Marietta, House |
| Commerce Bank |
| Commerce Tower |
| Commercial Community Historic District |
| Commercial Street Historic District |
| Commons Neighborhood Historic District |
| Community Church |
| Compton, Dr. James, House |
| Compton Hill Water Tower |
| Conley, Sanford F., House |
| Continental Hotel |
| Convent of the Sisters of St. Joseph Carondelet |
| Cook Avenue Methodist Episcopal Church, South |
| Cook School |
| Coral Court Motel |
| Corby-Forsee Building |
| Cori House |
| Corrigan, Bernard, House |
| Corrigan, Thos., Building |
| Courdin, David W., House |
| Courthouse-Seminary Neighborhood Historic District |
| Courthouse Square Historic District |
| Courthouse Square Historic District |
| Courthouse Square Historic District |
| Court Street Historic Residential District |
| Cragwold |
| Cress, Herbert A. and Bettie E., House |
| Crestwood Historic District |
| Crittenden Historic District |
| Crome, William F. and Julia, House |
| Crossroads Historic Freight District |
| Crowder State Park Vehicle Bridge |
| Crown Center Historic District |
| Crunden-Martin Manufacturing Company |
| Cuivre River State Park Administrative Area Historic District |
| Culbertson-Head Farmstead |
| Cumberland Presbyterian Church |
| Cupples, Samuel, House |
| Cupples Warehouse District |
| Curtiss, Louis, Studio Building |
| Cynthia-Kinzer Historic District |
| Czufin, Rudolph and Dorothy C., House |
| Dalton-Uphoff House |
| Dam and Spillway in the Hatchery Area at Montauk State Park |
| Dauphine Hotel |
| Dauwalter, John S., House |
| Davidson Building |
| Daviess County Courthouse |
| Daviess County Rotary Jail and Sheriff's Residence |
| Day House |
| Dean, O.H., Building |
| Degen, Henry, House |
| DeHodiamont, Emmanuel, House |
| DeKalb County Courthouse |
| Delaney School |
| Delany Building |
| Delmar Loop-Parkview Gardens Historic District |
| Dent County Courthouse |
| DePaul Hospital |
| Des Peres Presbyterian Church |
| Des Peres School |
| Devil's Elbow Historic District |
| Dewey Avenue-West Rosine Historic District |
| Dexter Gymnasium |
| Dick-Kobel Homestead |
| Dickmann Building |
| Dierks Building |
| Digel Block |
| Diggs, Duke and Mary, House |
| Dimmitt, George, Memorial Hospital |
| Dinwiddie, James M., House |
| District I |
| District I |
| District II |
| District III |
| Dockery Hotel |
| Doerr-Brown House |
| Dolman Row |
| Donaldson Court Apartments |
| Doneghy, John T. and Mary M., House |
| Dopf, John Dickinson, Mansion |
| Dorman, Judge Jerubial Gideon, House |
| Dorson Apartment Building |
Data from United States Park Service and Wikidata
