There is metered parking on 10th Street and Market Street. The City of Wilmington offers tips for parking downtown. Parking at the meters on weekends and holidays are free.
There is parking available through many parking garages and lots throughout downtown.
Colonial Parking also has lots in the area:
HyPark Garage: 903 N Shipley Street, Wilmington, DE 19801
820 N. French Street, Wilmington, DE 19801
The library does not validate parking.