ZIP 63011 vs ZIP 63021

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