State Road 13 | ||||
|---|---|---|---|---|
 SR 13 in red, unsigned Jacksonville segment in grey, related county roads in blue | ||||
| Route information | ||||
| Maintained by FDOT | ||||
| Length | 32.288 mi[1] (51.962 km) | |||
| Existed | 1945 renumbering (definition)–present | |||
| Major junctions | ||||
| South end |   SR 16 / CR 13 near Green Cove Springs | |||
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| North end | Downtown Jacksonville | |||
| Location | ||||
| Country | United States | |||
| State | Florida | |||
| Counties | St. Johns, Duval | |||
| Highway system | ||||
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State Road 13 (SR 13) is a 28.25-mile-long (45.46 km) state highway in the U.S. state of Florida, running north from SR 16 near Green Cove Springs, through Switzerland to Jacksonville on the east shore of the St. Johns River.