ZIP 20191 vs ZIP 20190

This side-by-side compares ZIP 20191 (Reston, VA) and ZIP 20190 (Reston, VA) using the same Census ACS 5-Year table fields for both — no averages swapped in, no national proxies. ZIP 20191 has a population of 29,128 at 1,367 people per square mile, while ZIP 20190 has 17,529 at 1,502 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 20191 reports a median household income of $151,185 against $134,746 in ZIP 20190, with per-capita income of $69,229 vs $86,420. The share of adults holding a bachelor's degree or higher is 67.5% in 20191 and 73.5% in 20190. Poverty rate reads 5.4% vs 7.2%, and unemployment 6.2% vs 3.9% — 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 $641,800 in 20191 versus $581,400 in 20190, with median rent of $2,016 and $2,307 per month respectively. Homeownership rate is 68.0% vs 48.3%. 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.