ZIP code
17603
Lancaster, PA
17603 covers Lancaster in Lancaster County, with 66,788 people in the ACS 2023 estimate.
Figures are for the Census ZIP Code Tabulation Area (ZCTA), which is not the same as a USPS ZIP code. A PO Box or unique ZIP may have no ZCTA and no demographics. Methodology
U.S. Census Bureau, ACS 2019–2023 5-year (vintage 2023). Geography: ZCTA 17603. Methodology
ZIP code map of 17603

About ZIP code 17603
Acceptable cities: Rohrerstown
More enterprise fields
Commercial ZIP directory · not ACS
Commercial ZIP directory population_count for ZCTA 17603. Not ACS. Methodology
People in 17603
Race
- White40,075
- Black or African American7,085
- American Indian or Alaska Native300
- Asian2,921
- Native Hawaiian and Pacific Islander20
- Other race8,768
- Two or more races7,570
Hispanic or Latino (any race): 18,010
Age
- Under 108,321
- 10 to 198,037
- 20 to 2910,509
- 30 to 399,589
- 40 to 497,596
- 50 to 598,010
- 60 to 697,530
- 70 to 794,646
- 80 and older2,501
Income and housing in 17603
Education
- High school graduate90.3%
- Bachelor's degree36.7%
- Graduate degree13.0%
Places covering 17603
Cities and places — Population overlap
Share of this ZIP/ZCTA’s population located within each place, based on ZIP Code Database place-overlap data. This is a population measure, not land-area overlap or the Census-place population.
- Lancaster44.9%
- Millersville1.4%
ZIP Code Database place-overlap table, field percent_of_zip_population_in_place, keyed by place_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
Counties — Population overlap
Share of this ZIP/ZCTA’s population located within each county, based on ZIP Code Database county-overlap data. This is a population measure, not land-area overlap or the Census county population.
- Lancaster County100.0%
ZIP Code Database county-overlap table, field percent_of_zip_population_in_county, keyed by county_geoid. Not ACS 2019–2023. Overlap vintage is the shipped overlap table and is separate from ACS. Methodology
53.7% of this ZIP is outside city limits (a real overlap row, not missing data).
Population history for 17603
Hover the chart or read the table below (Year | ACS | IRS).
| Year | ACS population | IRS population |
|---|---|---|
| 2005 | 53,504 | |
| 2006 | 52,488 | |
| 2007 | 56,446 | |
| 2008 | 54,047 | |
| 2009 | 54,761 | |
| 2010 | 55,120 | |
| 2011 | 62,979 | 56,255 |
| 2012 | 62,628 | 55,940 |
| 2013 | 61,719 | 56,700 |
| 2014 | 62,030 | 57,870 |
| 2015 | 62,653 | 58,010 |
| 2016 | 61,575 | 57,320 |
| 2017 | 62,596 | 57,610 |
| 2018 | 64,494 | 58,000 |
| 2019 | 64,242 | 58,100 |
| 2020 | 65,022 | 58,220 |
| 2021 | 67,601 | 56,890 |
| 2022 | 67,891 | 56,980 |
| 2023 | 66,788 |
ACS: U.S. Census Bureau American Community Survey 5-year estimates. IRS: Statistics of Income ZIP Code data.
ZIP codes near 17603
12 nearest ZIP centroids (any distance)
- 17504Bausman0.5 miPop 99 · Income $87,206
- 17611Lancaster2.5 miPop — · Income —
- 17601Lancaster3.0 miPop 56,348 · Income $96,433
- 17551Millersville4.3 miPop 11,884 · Income $69,729
- 17602Lancaster4.6 miPop 51,461 · Income $71,752
- 17520East Petersburg4.7 miPop 5,001 · Income $86,489
- 17554Mountville5.0 miPop 7,561 · Income $95,516
- 17538Landisville5.7 miPop 7,121 · Income $96,463
- 17606Lancaster5.8 miPop 341 · Income —
- 17584Willow Street6.0 miPop 11,776 · Income $106,363
- 17576Smoketown7.0 miPop 109 · Income —
- 17582Washington Boro7.2 miPop 1,711 · Income $104,659
ZIP centroids within 2 miles
| ZIP | City | State | Distance (miles) | ACS population | Median income |
|---|---|---|---|---|---|
| 17504 | Bausman | PA | 0.5 mi | 99 | $87,206 |
ZIPs within 2 miles of this place
Default is 2 miles. Distances are between ZIP centroids. Widen the radius if nothing is in range.
ZIP code 17603 FAQ
- What city is ZIP code 17603 in?
- 17603 is in Lancaster, PA.
- What county is 17603 in?
- 17603 is in Lancaster County.
- What is the median household income in 17603?
- The median household income in 17603 is $77,156.
- Which ZIP codes are near 17603?
- Use the radius tool on this page to list ZIP codes within a chosen distance of 17603.