ZIP 29455 vs ZIP 29487

This side-by-side compares ZIP 29455 (Johns Island, SC) and ZIP 29487 (Wadmalaw Island, SC) using the same Census ACS 5-Year table fields for both — no averages swapped in, no national proxies. ZIP 29455 has a population of 20,478 at 74 people per square mile, while ZIP 29487 has 2,725 at 25 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 29455 reports a median household income of $121,372 against $105,592 in ZIP 29487, with per-capita income of $80,015 vs $64,320. The share of adults holding a bachelor's degree or higher is 59.5% in 29455 and 45.8% in 29487. Poverty rate reads 9.0% vs 4.2%, and unemployment 1.5% vs 1.8% — 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 $590,800 in 29455 versus $487,900 in 29487, with median rent of $1,567 and $1,441 per month respectively. Homeownership rate is 88.2% vs 93.6%. 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.