| Name |
County |
| Bear Post Office |
New Castle |
| Bethany Beach Post Office |
Sussex |
| Bethel Post Office |
Sussex |
| Bridgeville Post Office |
Sussex |
| Camden Wyoming Post Office |
Kent |
| Cheswold Post Office |
Kent |
| Claymont Post Office |
New Castle |
| Clayton Post Office |
Kent |
| Dagsboro Post Office |
Sussex |
| Delaware City Post Office |
New Castle |
| Delmar Post Office |
Sussex |
| Dover Air Force Base Post Office |
Kent |
| Dover Post Office |
Kent |
| Edgemoor Post Office |
New Castle |
| Ellendale Post Office |
Sussex |
| Federal Post Office |
New Castle |
| Felton Post Office |
Kent |
| Frankford Post Office |
Sussex |
| Frederica Post Office |
Kent |
| Georgetown Post Office |
Sussex |
| Greenville Post Office |
New Castle |
| Greenwood Post Office |
Sussex |
| Harbeson Post Office |
Sussex |
| Harrington Post Office |
Kent |
| Hartly Post Office |
Kent |
| Hockessin Post Office |
New Castle |
| Houston Post Office |
Kent |
| Kenton Post Office |
Kent |
| Kirkwood Post Office |
New Castle |
| Lancaster Avenue Station Post Office |
New Castle |
| Laurel Post Office |
Sussex |
| Lewes Post Office |
Sussex |
| Lincoln Post Office |
Sussex |
| Little Creek Post Office |
Kent |
| Magnolia Post Office |
Kent |
| Manor Post Office |
New Castle |
| Marshallton Post Office |
New Castle |
| Middletown Post Office |
New Castle |
| Milford Post Office |
Sussex |
| Millsboro Post Office |
Sussex |
| Milton Post Office |
Sussex |
| Montchanin Post Office |
New Castle |
| Nassau Post Office |
Sussex |
| New Castle Post Office |
New Castle |
| Newark Post Office |
New Castle |
| Newport Post Office |
New Castle |
| Ocean View Post Office |
Sussex |
| Odessa Post Office |
New Castle |
| Port Penn Post Office |
New Castle |
| Rehoboth Beach Post Office |
Sussex |
| Rockland Post Office |
New Castle |
| Rodney Sq Post Office |
New Castle |
| Saint Georges Post Office |
New Castle |
| Seaford Post Office |
Sussex |
| Selbyville Post Office |
Worcester |
| Smyrna Post Office |
Kent |
| Talleyville Post Office |
New Castle |
| Townsend Post Office |
New Castle |
| Viola Post Office |
Kent |
| Wilmington Box Post Office |
New Castle |
| Woodside Post Office |
Kent |
| Yorklyn Post Office |
New Castle |
| Zingo's Post Office |
New Castle |
