Florida - Criteria: C (architecture/engineering)
| Helm, Johnson, House |
| Helms House |
| Helm Stores and Apartments |
| Henderson, T. G., House |
| Hendry, Capt. Francis A., House |
| Hendry County Courthouse, Old |
| Henley Field Ball Park |
| Henry, James, House |
| Hernando Elementary School, Old |
| Hialeah Park Race Track |
| Hialeah Seaboard Air Line Railway Station |
| Higgins Duplex |
| Highlands County Courthouse |
| Highlands Hammock State Park and Florida Botanical Gardens and Arboretum |
| High Springs Historic District |
| Hill Crest |
| Hill, Dr. George E., House |
| Hillsboro Inlet Light Station |
| Hillsboro State Bank Building |
| Hillsborough County High School, Old |
| Hippard House |
| Historic Old Town Commercial District |
| Holden House |
| Holland, Benjamin Franklin, House |
| Holly Cottage |
| Holly Hill Municipal Building |
| Hollywood Woman's Club |
| Holy Trinity Episcopal Church |
| Homeland School |
| Homestead Historic Downtown District |
| Homestead Town Hall |
| Hopper Academy |
| Horr, Capt. John Foley, House |
| Hotel Blanche |
| Hotel Mims |
| Hotel Ponce De Leon |
| Hotel Thomas |
| Hotel Venice |
| House at 100 West Davis Boulevard |
| House at 116 West Davis Boulevard |
| House at 1240 Cocoanut Road |
| House at 124 Baltic Circle |
| House at 125 Baltic Circle |
| House at 131 West Davis Boulevard |
| House at 132 Baltic Circle |
| House at 161 Bosporous Avenue |
| House at 190 Bosporous Avenue |
| House at 200 Corsica Avenue |
| House at 202 Blanca Avenue |
| House at 220 Blanca Avenue |
| House at 301 Caspian Street |
| House at 3325 Via de la Reiva |
| House at 3500 Via de la Reina |
| House at 3609 Via de la Reina |
| House at 3685 Via de la Reina |
| House at 36 Aegean Avenue |
| House at 36 Columbia Drive |
| House at 3703 Via de la Reina |
| House at 3764 Ponce de Leon Avenue |
| House at 418 Blanca Avenue |
| House at 507 Jackson Drive |
| House at 53 Aegean Avenue |
| House at 59 Aegean Avenue |
| House at 710 Armada Road South |
| House at 7144 Madrid Avenue |
| House at 7207 Ventura Avenue |
| House at 7217 Ventura Avenue |
| House at 7227 San Pedro |
| House at 7245 San Jose Boulevard |
| House at 7246 San Carlos |
| House at 7246 St. Augustine Road |
| House at 7249 San Pedro |
| House at 7288 San Jose Boulevard |
| House at 7306 St. Augustine Road |
| House at 7317 San Jose Boulevard |
| House at 7330 Ventura Avenue |
| House at 7356 San Jose Boulevard |
| House at 84 Adalia Avenue |
| House at 97 Adriatic Avenue |
| Howey House |
| Hubbard House |
| Hub, The |
| Hull-Hawkins House |
| Huntington Building |
| Hurt, Harry, Building |
| Hutchinson House |
| Hutchinson-Suddath Building |
| Huttig, John N., Estate |
| Hyde Park Historic Districts |
| Immokolee |
| Indian Key |
| Indian River County Courthouse |
| INGHAM (USCGC) |
| Ingraham Building |
| Interlachen Avenue Historic District |
| Interlachen Hall |
| Interlaken Historic Residential District |
| Island Grove Masonic Lodge No. 125 |
| Island Hotel |
| Jackson, Capt. William Parker, House |
Data from United States Park Service and Wikidata
