Delaware Route 12 (DE 12) is a state highway in Kent County, Delaware, United States. It runs from Maryland Route 314 (MD 314) at the Maryland border in Whiteleysburg east to an interchange with DE 1 near Frederica. The route follows a mostly rural alignment, passing through the towns of Felton and Frederica. DE 12 intersects U.S. Route 13 (US 13) in Felton and DE 15 east of Felton. What would become DE 12 was built as a state highway during the 1920s. DE 12 was designated between Felton and Frederica by 1936 and extended west to the Maryland border by 1938. The eastern terminus was moved to its current location in 1965 when US 113 was routed to bypass Frederica to the east. The DE 1 intersection became an interchange in 2011.
Granogue is an unincorporated community in New Castle County, Delaware, United States. Granogue is located along Smiths Bridge Road west of the Brandywine Creek and south of the Pennsylvania border.
Brandywine is an unincorporated community in New Castle County, Delaware, United States. Brandywine is located at the intersection of Delaware Route 92 and Shipley Road to the north of Wilmington.
Talleys Corner is an unincorporated community in New Castle County, Delaware, United States. Talleys Corner is located at the intersection of Delaware Route 261 and Silverside Road northeast of Wilmington and east of Talleyville.
Guyencourt is an unincorporated community in New Castle County, Delaware, United States. Guyencourt is located at the intersection of Delaware Route 100 and Guyencourt Road north of Wilmington and south of the Pennsylvania border.
Whitesville is an unincorporated community in Sussex County, Delaware, United States. Whitesville is located just north of the stateline with Maryland. between Delmar and Selbyville. Local folklore ascribes the name to Ezekiel Williams, who built the first house in the village. It is the site of the Line United Methodist Church.
Brackenville is an unincorporated community in New Castle County, Delaware, United States. Brackenville is located at the intersection of Brackenville Road and Old Wilmington Road east of Hockessin.
Wooddale is an unincorporated community in New Castle County, Delaware, United States. Wooddale is located along the Red Clay Creek and Rolling Mill Road west of Wilmington.
Middleford is an unincorporated community in Sussex County, Delaware, United States. Middleford is located at the intersection of Old Furnace Road and Middleford Road northeast of Seaford.
Collins Beach is an unincorporated community in New Castle County, Delaware, United States. Collins Beach is located along the Delaware Bay at the east end of Collins Beach Road northeast of Smyrna.
Milford Crossroads is an unincorporated community in New Castle County, Delaware, United States. Milford Crossroads is located along Delaware Route 72 at the intersection of Possum Park Road/Thompson Station Road and Paper Mill Road northeast of Newark.
Wescoats Corner is an unincorporated community in Sussex County, Delaware, United States. Wescoats Corner is located at the intersection of U.S. Route 9 Business and Wescoats Corner Road southwest of Lewes.
Armstrong is an unincorporated community in New Castle County, Delaware, United States. Armstrong is located at the intersection of Delaware Route 71 and Armstrong Corner Road/Marl Pit Road north of Middletown.
Porter is an unincorporated community in New Castle County, Delaware, United States. Porter is located at the intersection of Porter Road and Old Porter Road, southwest of Bear, and is the location of a junction between the Norfolk Southern Railway and the Delmarva Central Railroad.
Hazlettville is an unincorporated community in Kent County, Delaware, United States. Hazlettville is located at the intersection of Westville Road and Hazlettville Road southwest of Dover and west of Wyoming.
Blanchard is an unincorporated community in Sussex County, Delaware, United States. Blanchard is located at the intersection of Blanchard Road and Farm Lane northwest of Greenwood.
Brownsville is an unincorporated community in Kent County, Delaware, United States. Brownsville is located at the intersection of Brownsville Road and Drapers Corners Road west of Harrington.
Milltown is an unincorporated community in New Castle County, Delaware, United States. Milltown is located at the intersection of Delaware Route 7 and Milltown Road west of Wilmington.
Staytonville is an unincorporated community in Sussex County, Delaware, United States. Staytonville is located at the intersection of Delaware Route 36, Staytonville Road, and Memory Road northeast of Greenwood.
Sycamore is an unincorporated community in Sussex County, Delaware, United States. Sycamore is located at the intersection of Sycamore Road and Beaver Dam Branch Road northeast of Laurel.
