| Bear | Bear Public Library | 101 Governors Place, Bear, De | 19701 | (302) 838-3300 |
| Bethany Beach | South Coastal Library | 43 Kent Ave., Bethany Beach, De | 19930 | (302) 858-5518 |
| Bridgeville | Bridgeville Public Library | 600 South Cannon Street | 19933 | (302) 337-7401 |
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| Claymont | Claymont Public Library | 400 Lenape Way, Claymont, De | 19703 | (302) 798-4164 |
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| Delaware City | Delaware City Public Library | 250 Fifth Street | 19706 | (302) 834-4148 |
| Delmar | Delmar Public Library | 101 North Bi-State Blvd | 19940 | (302) 846-9894 |
| Dover | Dover Public Library | 35 Loockerman Plaza | 19901 | (302) 736-7032 |
| Dover | Kent County Library | 497 South Red Haven Lane | 19901 | (302) 744-1919 |
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| Elsmere | Elsmere Public Library | 30 Spruce Ave, Elsmere, De | 19805 | (302) 892-2210 |
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| Frankford | Frankford Public Library | 8 Main Street | 19945 | (302) 732-9351 |
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| Georgetown | Georgetown Public Library | 123 West Pine Street | 19947 | (302) 856-7958 |
| Greenwood | Greenwood Public Library | 100 Mill Street | 19950 | (302) 855-1242 |
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| Harrington | Harrington Public Library | 110 Center Street | 19952 | (302) 398-4647 |
| Hockessin | Hockessin Public Library | 1023 Valley Rd., Hockessin, De | 19707 | (302) 239-5160 |
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| Laurel | Laurel Public Library | 101 East Fourth Street | 19956 | (302) 874-3184 |
| Lewes | Lewes Public Library | 111 Adams Avenue | 19958 | (302) 645-2733 |
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| Middletown | Appoquinimink Public Library | 204 East Main Street | 19709 | (302) 378-5588 |
| Milford | Milford Public Library | 11 S.E. Front Street | 19963 | (302) 422-8996 |
| Millsboro | Millsboro Public Library | 217 West State Street | 19966 | (302) 934-8743 |
| Milton | Milton Public Library | 121 Union St | 19968 | (302) 855-1975 |
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| New Castle | New Castle Public Library | 424 Delaware Street | 19720 | (302) 328-1995 |
| New Castle | Route 9 Library & Innovation Center | 3022 New Castle Ave | 19720 | (302) 395-3401 |
| Newark | Newark Free Library | 750 Library Ave., Newark, De | 19711 | (302) 731-7550 |
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| Odessa | Corbit-Calloway Memorial Library | 115 High Street | 19730 | (302) 378-8838 |
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| Rehoboth Beach | Rehoboth Beach Public Library | 226 Rehoboth Avenue | 19971 | (302) 227-8044 |
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| Seaford | Seaford Library And Cultural Center | 600 N Market St Ext | 19973 | (302) 629-2524 |
| Selbyville | Selbyville Public Library | 11 Main Mccabe Street | 19975 | (302) 436-8195 |
| Smyrna | Duck Creek Regional Library | 22 South Main Street | 19977 | (302) 653-4579 |
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| Wilmington | Brandywine Hundred Branch | 1300 Foulk Road, Wilmington, De | 19803 | (302) 477-3150 |
| Wilmington | Kirkwood Highway Public Library | 6000 Kirkwood Highway, Wilmington, De | 19808 | (302) 995-7663 |
| Wilmington | North Wilmington Library | 3400 North Market St., Wilmington, De | 19802 | (302) 761-4290 |
| Wilmington | Wilmington Institute Library | 10 East 10th Street | 19801 | (302) 571-7400 |
| Wilmington | Woodlawn Library | 2020 West Ninth Street, Wilmington, De | 19805 | (302) 571-7425 |
