UNITED STATES POSTAL DIRECTORY

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Details of 17040 Zip Code



Detail Info for 17040 Zip Code U.S Zip Info
Zip Code : 17040
Type : STANDARD
City : Landisburg
State : PA
County : Perry County
Acceptable Cities:
UnAcceptable Cities: Alinda, Landisbg, Lebo
Time Zone : America/New_York
Area Codes : 223, 717
Latitute : 40,34
Longitude : -77,3
US ZIP Codes are 5-digit postal codes introduced in 1963 by the USPS to improve mail sorting efficiency. The first digit represents a region (0-9), the next two signify a sectional center facility, and the last two pinpoint a local post office. A 4-digit extension ("+4") is often used for specific delivery routes.
Key Details About US ZIP Codes
Structure: 5 digits (e.g., 90210) or ZIP+4 (e.g., 90210-1234).
Purpose: The Zone Improvement Plan (ZIP) system allows the USPS to automatically route mail more efficiently.
Geographic Breakdown:
1st Digit: Represents a group of states (e.g., 0=Northeast, 9=West).
2nd/3rd Digits: Represent a regional area or large city.
4th/5th Digits: Identify specific post offices or delivery areas.
Ranges by State: For example, California is 900-961, while New York is 005 and 100-149.
Usage: They are essential for accurate mail delivery, navigation, and location-based services.

Map of 17040