To the main page Back Forward | Route | From | To | Dates | Now |
| 501 | SR 48 W of St. Augustine | Picolata | 1939-1945 | 208 |
| 502 | Elkton | Tocoi | 1939- | |
| 503 | SR 4 N of St. Augustine | Santa Rosa | 1939- | |
| 504 | SR 165 at A&F RR | Alabama state line near Slocum, AL | 1939-1945 | 171 |
| 505 | SR 368 at Red Road | SR 149 | 1939- | |
| 506 | NW 95th St at SR 4 | SR 26 | 1939- | |
| 507 | Howard | SR 27 at Galloway Rd | 1939- | |
| 508 | Florida City | Biscayne Bay | 1939- | |
| 509 | SR 271 at Sunset Dr. | SR 205 | 1939- | |
| 510 | SR 372 | Florida City | 1939- | |
| 511 | SR 219 at Mathers Bridge | SR 140 | 1939- | |
| 512 | SR 20 | Panama City | 1939-1945 | 389 |
| 513 | SR 26 | Ft. Lauderdale | 1939- | |
| 514 | Youngstown | Iola | 1939- | |
| 515 | Carr school house | Jct Broadbranch Rd. | 1939- | |
| 516 | SR 159 S of Nettle Ridge Church | Chipola River | 1939- | |
| 517 | SR 26 | Hollywood Blvd. | 1939-1945 | 823 |
| Flamingo Rd. | ||||
| 518 | SR 140 E of Hollywood | SR 26 | 1939-1945 | 820 |
| 519 | SR 1 | Greenwood | 1939- | |
| 520 | Neal's Landing Bridge | Greenwood | 1939- | |