Dauphin County, Pennsylvania ZIP Codes

26 ZIP Codes

Zip Code
City
Population
17112Harrisburg38,502
17111Harrisburg36,744
17109Harrisburg27,466
17110Harrisburg27,364
17057Middletown23,560
17036Hummelstown23,520
17104Harrisburg18,541
17033Hershey16,481
17103Harrisburg13,115
17113Harrisburg11,724
17102Harrisburg8,118
17032Halifax7,551
17061Millersburg6,842
17018Dauphin3,902
17048Lykens3,870
17023Elizabethville3,489
17980Tower City3,342
17034Highspire3,071
17101Harrisburg2,722
17098Williamstown2,618
17097Wiconisco721
17978Spring Glen688
17030Gratz541
17005Berrysburg289
17080Pillow264
17120Harrisburg0

Overview of ZIP Codes in Dauphin County

ZCTAs are geographic areas created by the US Census Bureau to approximate the delivery areas of ZIP Codes for statistical analysis. While ZCTAs use the same five-digit codes as ZIP Codes, they represent defined geographic areas that may not exactly match the mail delivery routes of ZIP Codes.
26
ZIP Codes

The data shown reflect ZCTAs from the US Census. As of 2025, there are 26 ZCTAs in Dauphin County, Pennsylvania (US Census).