ZIP 20620 vs ZIP 20634

This side-by-side compares ZIP 20620 (Callaway, MD) and ZIP 20634 (Great Mills, MD) using the same Census ACS 5-Year table fields for both — no averages swapped in, no national proxies. ZIP 20620 has a population of 1,443 at 144 people per square mile, while ZIP 20634 has 5,927 at 333 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 20620 reports a median household income of $165,972 against $139,375 in ZIP 20634, with per-capita income of $57,323 vs $61,800. The share of adults holding a bachelor's degree or higher is 24.9% in 20620 and 40.3% in 20634. Poverty rate reads 4.9% vs 4.7%, and unemployment 0.0% vs 1.3% — 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 $391,300 in 20620 versus $342,300 in 20634, with median rent of — and $1,814 per month respectively. Homeownership rate is 96.4% vs 65.4%. 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.