ZIP 17603 vs ZIP 17551

This side-by-side compares ZIP 17603 (Lancaster, PA) and ZIP 17551 (Millersville, PA) using the same Census ACS 5-Year table fields for both — no averages swapped in, no national proxies. ZIP 17603 has a population of 61,973 at 803 people per square mile, while ZIP 17551 has 10,857 at 416 per square mile. That difference in population size and density alone reshapes how every other metric should be interpreted — a higher-income ZIP with 1,200 residents behaves very differently from one with 45,000.

On income and education, ZIP 17603 reports a median household income of $77,084 against $68,661 in ZIP 17551, with per-capita income of $42,414 vs $28,863. The share of adults holding a bachelor's degree or higher is 37.7% in 17603 and 43.5% in 17551. Poverty rate reads 13.0% vs 21.7%, and unemployment 5.3% vs 4.6% — these four fields alone drive most of the difference in the scorecard grades you will see for each ZIP.

Housing separates these two ZIPs further: median home value sits at $262,400 in 17603 versus $287,900 in 17551, with median rent of $1,355 and $1,485 per month respectively. Homeownership rate is 61.9% vs 57.8%. When reading the comparison table below, focus on paired metrics rather than single winners — a ZIP with lower home values and lower income is not strictly "worse" if rent-to-income ratios and commute times land in the same zone. Every value is pulled from the exact same ACS table so the two columns are genuinely comparable.