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Below is the list of the first 2 digits currently in use and their geographic locations:Unincorporated Areas*06 – Brandywine Hundred (unincorporated)07 – Christiana Hundred (unincorporated)08 – Mill Creek Hundred (unincorporated)09 – White Clay Creek Hundred (unincorporated)10 – New Castle Hundred (unincorporated)11 – Pencader Hundred (unincorporated)12 – Red Lion Hundred (unincorporated)13 – St. Georges Hundred (unincorporated)14 – Appoquinimink Hundred (unincorporated)15 – Blackbird Hundred (unincorporated)* New Castle County is the local governing body for government services in these areas.
Towns and Cities that are Incorporated**16 – Arden (incorporated)17 – Bellefonte (incorporated)18 – Newark (incorporated)19 – Elsmere (incorporated)20 – Newport (incorporated)21 – City of New Castle (incorporated)22 – Delaware City (incorporated)23 – Middletown (incorporated)24 – Odessa (incorporated)25 – Townsend (incorporated)26 – Wilmington (incorporated)27 – Ardentown (incorporated)28 – Smyrna (incorporated) – Smyrna lies in both New Castle and Kent Counties29 – Ardencroft (incorporated)30 – Clayton (incorporated) – Clayton lies in both New Castle and Kent Counties** Not all jurisdictions have the same range of city services. You should check with the town/city to determine whether the service you seek is handled by them or by New Castle County.
All plans for streets, whether public or private, must be reviewed and approved by the Land Use Department. Reviews of street plans ensure that adequate facilities are installed when a project is developed so that there are adequate services; that the facilities will function efficiently with minimum maintenance; and that the overall development is functional andinternally safe to the greatest degree possible. Roads must be designed to avoid increasing adverse impacts on the environment and on adjoining properties. In general, New Castle County encourages public streets in new subdivisions. However, in limited situations, the Department of Land Use may approve the use of private streets if :1. The public has use of private streets;2. The development is in the Suburban Estate or Suburban Reservedistrict and is a single-family or open space subdivision*; or3. The development is a rural subdivision **B. Where appropriate, private street improvements must meet the minimumstandards for comparable public streets.C. A maintenance organization must be created and responsible for themaintenance of the private streets.
*Open Space Subdivision. This is a development pattern or design technique where lots are grouped together rather than spread out evenly as in conventional subdivision development. Clustering development allows the remaining land to be used for recreation, open space and the preservation of natural resources.
** Rural Subdivision. This subdivision provides limited development opportunity in the Suburban Reserve if the landowner wants to continue agricultural operations, house family members, or raise income to supplement agricultural operations. It may also be used inareas where growth potential is limited by facilities capacity. This subdivision permits development at minimal cost while providing access protection along existing streets. The rural subdivision permits a landowner to subdivide a large tract into four (4) lots; these lots are designated the "residential lots". The remaining parcel is designated the "residual lot." The "residual lot" must be included as part of the final plan for recordation purposes. The "residual lot" must be used in part for access and as a reserve for future development that promotes sound land use patterns.
The homeowner is responsible for installing and maintaining curbside mailboxes to USPS specifications. If you plan to replace an existing mailbox, check with the Postmaster if you wish to change the location or construct a custom box.
For cluster mailboxes, the builder is responsible for installing a concrete pad according to USPS specifications and the local postmaster provides the cluster boxes, their installation and maintenance.
Most information is available through the U.S. Postal Service's website at https://www.usps.com/.