ZIP 20812 vs ZIP 20818

This side-by-side compares ZIP 20812 (Glen Echo, MD) and ZIP 20818 (Cabin John, MD) using the same Census ACS 5-Year table fields for both — no averages swapped in, no national proxies. ZIP 20812 has a population of 255 at 516 people per square mile, while ZIP 20818 has 1,962 at 743 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 20812 reports a median household income of $213,750 against $245,982 in ZIP 20818, with per-capita income of $93,568 vs $159,058. The share of adults holding a bachelor's degree or higher is 82.0% in 20812 and 86.4% in 20818. Poverty rate reads 1.1% vs 1.1%, and unemployment 1.4% vs 0.0% — 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 $1,163,500 in 20812 versus $1,335,100 in 20818, with median rent of — and — per month respectively. Homeownership rate is 99.0% vs 95.3%. 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.