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Where 17603 is
Approximate ZIP boundary (Census ZCTA 2020). ZIP codes are mail routes, not areas, so the shape shown is the Census tabulation area that approximates it.
- 🔢 Type 17603 into a pocket calculator and turn it upside down: EOgLI — not quite a word, sorry.
- ➕ As a number, 17,603 = 29 × 607. Its digits add up to 17, a total 2,133 other ZIP codes share.
- 💾In binary, the way a computer stores it:
100010011000011 - 🏠 Its numerical neighbours: 17602 (Lancaster, PA, 5 mi away) and 17604 (Lancaster, PA, 2 mi away).
- 🔄 Backwards, 17603 becomes 30671 — and that is a real ZIP code: Maxeys, GA, 576 miles away.
- 👥 63 other ZIP codes are made of exactly the same digits (01367, 01376, 06137, 06371, 07631, 13076, …). The farthest-flung twin is 76310 in Wichita Falls, TX, 1,295 miles away.
- 🧭 Farther north than 57% of all ZIP codes, and farther east than 84%.
- 🎯1,176 miles east of the geographic center of the Lower 48, near Lebanon, Kansas.
- 🌏 Dig straight through the Earth from 17603 and you would come out at 40.03°S, 103.67°E — 879 miles from Perth, Australia, the nearest big city to that spot.
- ☀Longest day of the year: 15h 01m of daylight. Shortest: 9h 19m.
- 📏 At 30.0 square miles of land, 17603 is bigger than 46% of ZIP codes — room for about 23 Central Parks.
- Working out the sun…
- Checking the USGS…
Source: USGS.
People and housing
| Population | 67,571This ZIP67,571 |
|---|---|
| Households | 27,248This ZIP27,248 |
| Housing units | 28,466This ZIP28,466 |
| Median age | 35.7This ZIP35.7Pennsylvania40.9US 38.9 |
| Median household income | $77,084This ZIP$77,084Pennsylvania$77,971US $80,734 |
| Median home value | $262,400This ZIP$262,400Pennsylvania$254,500US $332,700 |
| Median gross rent | $1,355This ZIP$1,355Pennsylvania$1,209US $1,413 |
| Bachelor's degree or higher | 37.7%This ZIP37.7% |
| Mean commute | 23.8 minThis ZIP23.8 min |
| Population density | 2,253.3 / sq miThis ZIP2,253.3 / sq mi |
Business and tax activity
| Business establishments | 1,501This ZIP1,501 |
|---|---|
| Employees | 26,331This ZIP26,331 |
| Annual payroll | $1,346,446,000This ZIP$1,346,446,000 |
| Tax returns filed | 33,280This ZIP33,280 |
| Total adjusted gross income | $2,347,978,000This ZIP$2,347,978,000 |
Land area
| Land area | 29.99 sq miThis ZIP29.99 sq mi |
|---|---|
| Water area | 0.37 sq miThis ZIP0.37 sq mi |
Other place names in 17603
Census places whose land this ZIP code overlaps. The Postal Service may accept other city names in an address, too.
ZIP codes near 17603
| ZIP | City | Distance |
|---|---|---|
17504 | Bausman, PA | 0.5 mi |
17611 | Lancaster, PA | 1.4 mi |
17622 | Lancaster, PA | 1.7 mi |
17503 | Bart, PA | 1.9 mi |
17564 | Penryn, PA | 1.9 mi |
17605 | Lancaster, PA | 1.9 mi |
17607 | Lancaster, PA | 1.9 mi |
17608 | Lancaster, PA | 1.9 mi |
17699 | Lancaster, PA | 1.9 mi |
17604 | Lancaster, PA | 2.4 mi |
Find every ZIP code within 10 miles of 17603 →
Questions about this ZIP code
Where is ZIP code 17603?
17603 is in Lancaster, Pennsylvania, in Lancaster County, part of the Lancaster, PA metropolitan area. Its published point location is 40.0308, -76.3304.
What county is 17603 in?
17603 lies in Lancaster County.
What area code is 17603?
Lancaster uses area codes 717 and 223, from NANPA's telephone records.
What time zone is 17603 in?
17603 uses America/New_York.
How many people live in 17603?
About 67,571 people live in ZIP code 17603, in 27,248 households, at 2,253.3 people per square mile. These are American Community Survey 5-year estimates for the ZIP Code Tabulation Area, not a headcount.
What is the median household income in 17603?
$77,084 a year, against $77,971 across Pennsylvania.
What ZIP codes are near 17603?
The closest are 17504 (0.5 mi), 17611 (1.4 mi), 17622 (1.7 mi), 17503 (1.9 mi) and 17564 (1.9 mi).
Is 17603 a PO Box ZIP code?
17603 is a standard ZIP code. A normal ZIP code with street delivery.
Download or cite
Cite this page
zipcodes.pro. “17603 ZIP Code — Lancaster, Pennsylvania (Lancaster County).” Data release 2026-10-12. Retrieved 2026-10-20. https://zipcodes.pro/zip/17603
Machine-readable version of these facts:
curl https://zipcodes.pro/zip/17603.jsonUnderlying data is public domain or openly licensed — sources, vintages and licences.