Arkansas - Criteria: C (architecture/engineering)
| Cedar Creek Bridge |
| Cedar Grove School #81 |
| Centennial Baptist Church |
| Central Avenue Bridge |
| Central Methodist Episcopal Church South |
| Central Presbyterian Church |
| Central Texas Gravel Locomotive #210 |
| Century Flyer |
| Chambers, Oscar, House |
| Chandler House |
| Charleston Commercial Historic District |
| Charlotte Street Historic District |
| Charlton Bathhouse |
| Charlton Spillway-Dam |
| Chemistry Building-University of Arkansas, Fayetteville |
| Cherry House |
| Cherry-Luter Estate |
| Chester Masonic Lodge and Community Building |
| Chicago, Rock Island, and Pacific Railroad Depot |
| Chicot County Courthouse |
| Childers Farmstead |
| Chi Omega Chapter House |
| Chi Omega Greek Theatre-University of Arkansas, Fayetteville |
| Chism, Dr. Stephen N., House |
| Chisum House |
| Choctaw Route Station |
| Chrisco, Melvin, House |
| Christ the King Church |
| Churchill-Hilger House |
| Church of Christ |
| Citizens Building |
| City Hall |
| Clack House |
| Clarendon Methodist-Episcopal Church South |
| Clark County Courthouse |
| Clark County Library |
| Clarke-Harrell-Burson House |
| Clark House |
| Clark-King House |
| Clarksville Commercial Historic District |
| Clary, J. W. and Ann Lowe, House |
| Clay, Dr., House |
| Clear Springs Tabernacle |
| Cleburne County Courthouse |
| Cleveland Arms Apartment Building |
| Cleveland County Courthouse |
| Clifton, John, House |
| Clinton, Bill, Boyhood Home |
| Clinton Commercial Historic District |
| Clinton House |
| Clover Bend Historic District |
| Coats School |
| Cobb, Pattie, Hall |
| Coca-Cola Building |
| Cogburn Dipping Vat |
| Coger House |
| Cold Spring |
| Collier Springs Shelter |
| Collison House |
| Collums-Baker House |
| Columbia County Courthouse |
| Columbia County Jail |
| Combs, Nathan, House |
| Commandant's House |
| Commercial Hotel |
| Community Theatre |
| Compton-Wood House |
| Concord School House |
| Confederate State Capitol |
| Connelly-Harrington House |
| Conway Commercial Historic District |
| Conway County Courthouse |
| Conway County Library |
| Cook-Morrow House |
| Cooley, Sam, Barn |
| Coolidge House |
| Coon Creek Bridge |
| Coop Creek Bridge |
| Copeland, Henry, House |
| Copeland, Wesley, House |
| Cornish House |
| Cottage Courts Historic District |
| Cotter Bridge |
| Cotter Tunnel |
| Cotter Water Tower |
| Cotton Belt Railroad Depot-Fordyce |
| Cotton Belt Railroad Office Building |
| Cotton, Dr. J. O., House |
| Cotton Plant Commercial Historic District |
| Cotton Plant Water Tower |
| Cotton, Thomas James, House |
| Cottonwood School #45 |
| Couch, Harvey C., School |
| Couch-Marshall House |
| Couchwood |
| Couchwood Historic District |
| Council Grove Methodist Church |
| County Road 6 Bridge |
| Cove Creek Bridge |
| Cove Creek Tributary Bridge |
Data from United States Park Service and Wikidata
