Mailboxes are taken for granted by many and are used primarily to receive mail from post office personnel. However, mailboxes are a key indicator to emergency response personnel within Tewksbury Township and within Hunterdon County.

The Hunterdon County 911 system will alert emergency response personnel, rescue and fire companies and note the location with the street address. A mailbox without a house number on it can cause valuable time to be lost during a response. Many mailboxes have numbers on one side and other properties have the number decoratively located on signs, rocks and fences, all of which can be overlooked especially in the dark.