All - Architectural style - Colonial Revival architecture
| Central Fire Station |
| Century Club of Scranton |
| Chaffee County Poor Farm |
| Chain Bridge Road School |
| Chalker, George A., House |
| Chamberlain, George Earle, House |
| Chamberlayne Gardens |
| Chambers, John, House |
| Chancellor House |
| Chapel Hill |
| Chapelle Administration Building |
| Chapman House |
| Chapman, Oscar H., House |
| Chappell Hill Circulating Library |
| Charity Hospital |
| Charleston Baptist Temple |
| Charlton Leland |
| Chase City High School |
| Chase-Hubbard-Williams House |
| Chatham Hotel |
| Chaves County Courthouse |
| Cheatham County Courthouse |
| Cherrydale Volunteer Fire House |
| Cherry House |
| Chester Plantation |
| Chestnut Hill |
| Chetolah |
| Chickama |
| Children's Home |
| Children's Home Finding and Aid Society of North Idaho |
| Children's Hospital |
| Chilocco Indian Agricultural School |
| Chilton Post Office |
| Chinaberry |
| Chivers, Bill, House |
| Chouteau Apartments/Parkway Dwellings |
| Christian Park School No. 82 |
| Church, Benjamin, House |
| Church Farm |
| Church of Nuestra Senora de la Candelaria y Guadalupe |
| Church of the Holy Trinity and Rectory |
| Cisco Historic District |
| Cisney, George E., House |
| City Hall |
| City of Roanoke Fire Station No. 5 |
| City Stable and Garage |
| City Water Department |
| Clack, H. Earl, House |
| Claflin, Adams, House |
| Clancy, Cornelius Lawrence, House |
| Clapp, Lucius, Memorial |
| Claridge Manor Apartments |
| Clark-Chalker House |
| Clarke-Hobbs-Davidson House |
| Clarke-Mossman House |
| Clark, Frank Chamberlain, House |
| Clark House |
| Clark House |
| Clark, John, House |
| Clark, Sen. Joseph O., House |
| Claverack Free Library |
| Clay County Hospital |
| Clayton House |
| Clayton, Lily B., Elementary School |
| Clayton, William L., Summer House |
| Clements Hall |
| Clements, James, Airport Administration Building |
| Cleveland, A. S., House |
| Cleveland Court School |
| Cleveland Home For Aged Colored People |
| Cleveland House |
| Clevenger, Lowery, House |
| Cliff, Z. E., House |
| Clifton School |
| Clifton Terrace |
| Cloquet City Hall |
| Cloud-Reese House |
| Cloverdale |
| Cluett Peabody & Company |
| Cluff Apartments |
| Cobb, Pattie, Hall |
| Cobbs, Frank J., House |
| Cobe Estate |
| Cobham Park |
| Coca-Cola Bottling Company Building |
| Coca-Cola Bottling Plant-Athens |
| Cocaigne, Nicholas, House |
| Cochran Municipal Building and School |
| Cocke-Martin-Jackson House |
| Coconino County Hospital Complex |
| Coddington School |
| Coe, H. M., House |
| Coker, James L., III, House |
| Coker, Robert R., House |
| Colbath Cottage |
| Colbert School |
| Cold Spring Grange Hall |
| Coleman-Scott House |
| Colfax Passenger Depot |
| Collins Building |
Data from United States Park Service and Wikidata