Every ZIP code in the United States, with weather, radar, trivia and the numbers behind it. Five digits since 1963!

ZIP stands for Zone Improvement Plan. The codes went live on July 1, 1963.The lowest ZIP code is 00501 — the IRS in Holtsville, New York.The highest ZIP code is 99950, in Ketchikan, Alaska.Type 07734 into a calculator and turn it upside down: hELLO. It is Keansburg, New Jersey.12345 belongs to one company: General Electric in Schenectady, New York.The first digit is a region: 0 is New England and New Jersey, 9 is the West Coast, Alaska and Hawaii.Mr. ZIP, the cartoon mailman, was the mascot that sold the idea to America.ZIP+4 arrived in 1983 and can narrow a ZIP down to one side of one block.A ZIP code is a mail route, not a place: plenty of them cross county and even state lines.Play ZIP Hunt: guess the secret ZIP code of the day in six tries.
zipcodes.pro — STATE/PA/COUNTY/DAUPHIN

Dauphin County, PA ZIP codes

There are 42 ZIP codes in Dauphin County, PA, in 17 towns, from 17005 to 17980. The largest are 17112 (Harrisburg), 17111 (Harrisburg) and 17110 (Harrisburg).

The county seat is Harrisburg.

ZIP codes
42
Towns
17
County seat
Harrisburg
County FIPS
42043
Population
289,593
Median household income
$76,242
Land area
525 sq mi
Area codes
223, 717

Dauphin County ZIP codes by town

Each ZIP code is listed under the county most of its land lies in and the town the Postal Service names it for; a ZIP code's own page shows exactly how it is split.

Map of Dauphin County ZIP codes

170051701817023170301703217033170341703617048170571706117080170971709817101171021710317104171051710617107171081710917110171111711217113171201712117122171231712417125171261712717128171291713017140171771797817980

The ZIP codes of Dauphin County, shaded. Outlines are Census ZIP Code Tabulation Areas (2020), which approximate the mail routes; PO-box and single-address codes have no area and are not drawn. Click any area to open its ZIP code.

Dauphin County in numbers

About 289,593 people live in Dauphin County, in 121,358 households, the 14th most populous of Pennsylvania's 67 counties. The median household income is $76,242 a year, about the same as the Pennsylvania median of $77,971 (US: $80,734). The median owner-occupied home is valued at $236,400 (7% below the Pennsylvania median), and median gross rent is $1,217 a month. The median age is 39.4; 34.4% of adults 25 and over hold a bachelor's degree or higher (35.2% across Pennsylvania); the average commute takes 22 minutes.

Population289,593Dauphin289,593
Households121,358Dauphin121,358
Median age39.4Dauphin39.4Pennsylvania40.9US 38.9
Median household income$76,242Dauphin$76,242Pennsylvania$77,971US $80,734
Median home value$236,400Dauphin$236,400Pennsylvania$254,500US $332,700
Median gross rent$1,217Dauphin$1,217Pennsylvania$1,209US $1,413
Bachelor's degree or higher34.4%Dauphin34.4%Pennsylvania35.2%US 35.7%
Mean commute21.5 minDauphin21.5 minPennsylvania26.3 minUS 26.4 min
Population density552 / sq miDauphin552 / sq mi

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates. Survey estimates carry margins of error, wider for small places. Sources and methods.

Largest towns in Dauphin County

Largest towns in Dauphin County
TownZIP codesPopulation
Harrisburg 26 50,287
Hershey 1 14,242
Middletown 1 9,632
Hummelstown 1 4,527
Highspire 1 2,732
Millersburg 1 2,531
Lykens 1 1,878
Tower City 1 1,545
Elizabethville 1 1,350
Williamstown 1 1,345
Dauphin 1 1,075
Gratz 1 745
Wiconisco 1 721
Spring Glen 1 688
Halifax 1 515

Population of the census place of that name where there is one, otherwise of the ZIP codes the Postal Service addresses by it. A town's ZIP codes can reach past the county line.

Neighbouring counties

Counties that share a ZIP code with Dauphin County.

Not sure you are in Dauphin County? What county am I in? answers from your location, near a county line included.

Every ZIP code in Dauphin County, with figures

ZIP codes in Dauphin County
ZIP City Type Population Median income Median home
17005 Berrysburg , PA Standard 289 $61,429 $151,000
17018 Dauphin , PA Standard 3,902 $72,188 $238,700
17023 Elizabethville , PA Standard 3,489 $79,435 $210,500
17030 Gratz , PA Standard 541 — $225,000
17032 Halifax , PA Standard 7,551 $81,250 $226,400
17033 Hershey , PA Standard 16,481 $72,945 $384,100
17034 Highspire , PA Standard 3,071 $52,700 $146,300
17036 Hummelstown , PA Standard 23,520 $115,533 $349,700
17048 Lykens , PA Standard 3,870 $73,993 $144,200
17057 Middletown , PA Standard 23,560 $73,407 $201,600
17061 Millersburg , PA Standard 6,842 $55,611 $166,100
17080 Pillow , PA Standard 264 $73,438 $136,500
17097 Wiconisco , PA Standard 721 $69,063 $99,500
17098 Williamstown , PA Standard 2,618 $63,041 $122,000
17101 Harrisburg , PA Standard 2,722 $50,878 —
17102 Harrisburg , PA Standard 8,118 $54,573 $193,700
17103 Harrisburg , PA Standard 13,115 $39,825 $137,900
17104 Harrisburg , PA Standard 18,541 $46,510 $104,800
17105 Harrisburg , PA No street area — — —
17106 Harrisburg , PA No street area — — —
17107 Harrisburg , PA No street area — — —
17108 Harrisburg , PA No street area — — —
17109 Harrisburg , PA Standard 27,466 $71,833 $215,900
17110 Harrisburg , PA Standard 27,364 $80,699 $222,900
17111 Harrisburg , PA Standard 36,744 $86,385 $235,500
17112 Harrisburg , PA Standard 38,502 $103,876 $313,000
17113 Harrisburg , PA Standard 11,724 $68,244 $161,800
17120 Harrisburg , PA Standard 0 — —
17121 Harrisburg , PA No street area — — —
17122 Harrisburg , PA No street area — — —
17123 Harrisburg , PA No street area — — —
17124 Harrisburg , PA No street area — — —
17125 Harrisburg , PA No street area — — —
17126 Harrisburg , PA No street area — — —
17127 Harrisburg , PA No street area — — —
17128 Harrisburg , PA No street area — — —
17129 Harrisburg , PA No street area — — —
17130 Harrisburg , PA No street area — — —
17140 Harrisburg , PA No street area — — —
17177 Harrisburg , PA No street area — — —
17978 Spring Glen , PA Standard 688 $65,577 $275,000
17980 Tower City , PA Standard 3,342 $71,210 $149,600

Cite this page

zipcodes.pro. “Dauphin County ZIP codes.” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/state/pa/county/dauphin

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