ZIP 63021 vs ZIP 63011

This side-by-side compares ZIP 63021 (Ballwin, MO) and ZIP 63011 (Ballwin, MO) using the same Census ACS 5-Year table fields for both — no averages swapped in, no national proxies. ZIP 63021 has a population of 56,261 at 986 people per square mile, while ZIP 63011 has 36,347 at 972 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 63021 reports a median household income of $120,177 against $124,454 in ZIP 63011, with per-capita income of $56,249 vs $59,024. The share of adults holding a bachelor's degree or higher is 63.0% in 63021 and 66.1% in 63011. Poverty rate reads 5.4% vs 5.0%, and unemployment 4.1% vs 2.9% — 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 $349,500 in 63021 versus $400,900 in 63011, with median rent of $1,423 and $1,566 per month respectively. Homeownership rate is 80.7% vs 82.1%. 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.