County ProfilePA
Dauphin County
Population: 286,401 · 41 ZIP codes
Demographics
Source: U.S. Census Bureau (ACS/Decennial). Estimates vary by year.
People
Total population
286,401
People
Median age
39.4
Housing
Total households
121,358
Income
Median household income
$76,242
Housing
Total housing units
127,828
Employment
Employment rate
61.4%
Education
Bachelor’s degree or higher
34.4%
Healthcare
Insured population
93.6%
County details
Local time 04:50:58(ET)| Name | Dauphin |
|---|---|
| Total ZIP codes | 41total |
| ZIP codes (by type) | 22 Standard6 PO Box13 Unique |
| Area code | 223, 272, 570, 717 |
| Timezone | Eastern Time (ET) |
| Coordinates | 40.4125646, -76.7926343 |
| Land area | 524.9 sq miles(1,359.4 km²) |
Map of Dauphin county, Pennsylvania with ZIP codes
Cities and Communities in Dauphin County
Compare the largest cities in Dauphin County by population, median income, and growth. Use the table below to analyze key demographic shifts across the region.
| City | Population | Median incomeHousehold | ZIP codes |
|---|---|---|---|
| Harrisburg | 50,099 | $48,099 | 26ZIPs |
| Hershey | 13,858 | $78,587 | 1ZIPs |
| Middletown | 9,533 | $55,765 | 1ZIPs |
| Hummelstown | 4,544 | $63,175 | 1ZIPs |
| Grantville | 3,448 | — | 1ZIPs |
| Highspire | 2,741 | $52,618 | 1ZIPs |
| Millersburg | 2,545 | $54,421 | 1ZIPs |
| Lykens | 1,873 | $73,318 | 1ZIPs |
| Elizabethville | 1,357 | $68,864 | 1ZIPs |
| Williamstown | 1,303 | $61,757 | 1ZIPs |
| Wiconisco | 845 | — | 1ZIPs |
| Halifax | 796 | $53,472 | 1ZIPs |
| Dauphin | 795 | $45,625 | 1ZIPs |
| Gratz | 743 | — | 1ZIPs |
| Berrysburg | 326 | $61,964 | 1ZIPs |
| Pillow | 292 | $73,438 | 1ZIPs |
— Data unavailable or suppressed by the U.S. Census Bureau for areas with small sample sizes to protect individual privacy.
ZIP Codes in Dauphin County
Review the most populated postal areas across Dauphin County. Use the ranking below to compare resident density and demographic scales between the county's major zones.
| ZIP | City | Median incomeHousehold | Population (ZIP) |
|---|---|---|---|
| 17112 | Harrisburg | $103,876 | 37,137 |
| 17111 | Harrisburg | $86,385 | 36,557 |
| 17110 | Harrisburg | $80,699 | 27,239 |
| 17109 | Harrisburg | $71,833 | 25,232 |
| 17036 | Hummelstown | $115,533 | 24,146 |
| 17057 | Middletown | $73,407 | 23,112 |
| 17104 | Harrisburg | $46,510 | 20,058 |
| 17033 | Hershey | $72,945 | 16,414 |
| 17103 | Harrisburg | $39,825 | 12,225 |
| 17113 | Harrisburg | $68,244 | 11,649 |
| 17102 | Harrisburg | $54,573 | 7,989 |
| 17032 | Halifax | $81,250 | 7,816 |
| 17061 | Millersburg | $55,611 | 6,966 |
| 17018 | Dauphin | $72,188 | 4,324 |
| 17048 | Lykens | $73,993 | 4,006 |
| 17028 | Grantville | $59,554 | 3,448 |
| 17023 | Elizabethville | $79,435 | 3,298 |
| 17101 | Harrisburg | $50,878 | 2,901 |
| 17034 | Highspire | $52,700 | 2,765 |
| 17098 | Williamstown | $63,041 | 2,397 |
Data Sources & Citations
The geographic and demographic information presented on this site is compiled from publicly available, authoritative sources, including:
- United States Census BureauDemographic, population, housing, and socioeconomic data sourced from Census Bureau datasets, including the Decennial Census and the American Community Survey (ACS).Census Data
- United States Postal Service (USPS)ZIP code classifications, delivery types, and postal designations used for reference purposes. USPS ZIP codes are intended for mail delivery and may not always align exactly with Census geographic boundaries.USPS