ZIP 08558 vs ZIP 08553

This side-by-side compares ZIP 08558 (Skillman, NJ) and ZIP 08553 (Rocky Hill, NJ) using the same Census ACS 5-Year table fields for both — no averages swapped in, no national proxies. ZIP 08558 has a population of 6,629 at 154 people per square mile, while ZIP 08553 has 682 at 431 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 08558 reports a median household income of $236,016 against $148,056 in ZIP 08553, with per-capita income of $112,991 vs $80,279. The share of adults holding a bachelor's degree or higher is 79.3% in 08558 and 71.1% in 08553. Poverty rate reads 1.3% vs 3.9%, and unemployment 2.5% vs 5.3% — 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 $910,200 in 08558 versus $597,200 in 08553, with median rent of $2,000 and $1,799 per month respectively. Homeownership rate is 86.2% vs 76.4%. 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.