How do I find a ZIP code by city or state?

You can find ZIP codes by city or state using our search tool. Just enter the city or state name, and you'll see all related ZIP codes instantly.

What is a ZIP+4 code?

A ZIP+4 code adds four digits to the basic five-digit ZIP code. It helps the USPS deliver mail more precisely to specific addresses or buildings.

Are ZIP codes the same as postal codes?

ZIP codes are the U.S. version of postal codes, used by the USPS to identify delivery areas. Other countries use postal codes with different formats.

Complete ZIP Codes For Dauphin, Pennsylvania

Browse Dauphin ZIP Codes

ZIP Codes in Dauphin County help organize mail delivery and define local service areas. Each ZIP Code corresponds to a specific community or post office, ensuring residents, businesses, and visitors can find accurate address information quickly. By browsing the complete list of Dauphin ZIP Codes, you can easily identify the correct code for mailing, business, or geographic purposes.

Harrisburg

Post Office	Harrisburg
Division	Dauphin
Pincode	17112

Harrisburg

Post Office	Harrisburg
Division	Dauphin
Pincode	17111

Harrisburg

Post Office	Harrisburg
Division	Dauphin
Pincode	17110

Harrisburg

Post Office	Harrisburg
Division	Dauphin
Pincode	17109

Middletown

Post Office	Middletown
Division	Dauphin
Pincode	17057

Hummelstown

Post Office	Hummelstown
Division	Dauphin
Pincode	17036

Total Post Offices (42) Page 1 of 7
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Cities in Dauphin

17 cities in Dauphin County | List of ZIP Codes in Pennsylvania

ZIP codes in Dauphin County, Pennsylvania not only facilitate mail delivery but also provide important demographic and geographic insights. Each ZIP code corresponds to specific areas within the county, helping businesses, residents, and researchers understand population distribution, city locations, and service coverage across Dauphin County.

Businesses and service providers rely on accurate ZIP code information in Dauphin County to plan deliveries, target customers, and ensure timely services. By referencing the full list of ZIP codes, companies can optimize logistics and outreach, while residents can easily identify the correct postal codes for their addresses within Pennsylvania.

Knowing the correct ZIP codes in Dauphin County ensures fast and accurate mail delivery from the United States Postal Service (USPS). It also helps travelers, online shoppers, and local residents navigate efficiently across towns and communities in Dauphin County, making ZIP codes an essential part of daily life and business operations.