Zip Code 17551 — Millersville, PA
17551 is a ZIP Code associated with Millersville, PA, located within Lancaster. 17551 ranks #13 out of 53 ZIP codes in Lancaster County by population (and #365 out of 1,832 in PA). The area supports an estimated population of 11,753 residents across Data Pending housing units, with a population density of 427.6 people per square mile.
WorldPlaceData database updated: October 2026
📍 View location on OpenStreetMap (39.979110, -76.376080)
| Data Metric | Local Statistic |
|---|
| Postal / Zip Code | 17551 |
| Primary City | Millersville |
| State / Province | PA |
| County | Lancaster |
| Total Population | 11,753 |
| Median Household Income | Data Pending |
| Total Housing Units | Data Pending |
| Population Density | 427.6 people/sq mi |
| Timezone | America/New_York |
How 17551 Compares
| Metric | ZIP 17551 | Lancaster County | PA State Average |
|---|
| Population | 11,753 | 558,164 (Total) | 13,018,637 (Total) |
| Average ZIP Income | Data Pending | N/A | N/A |
| Population Density | 427.6 /sq mi | -- | -- |
| County Pop Rank | #13 of 53 | -- | -- |
Nearby ZIP Codes
Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →