ZIP 33149 vs ZIP 33109

This side-by-side compares ZIP 33149 (Key Biscayne, FL) and ZIP 33109 (Miami Beach, FL) using the same Census ACS 5-Year table fields for both — no averages swapped in, no national proxies. ZIP 33149 has a population of 12,389 at 1,016 people per square mile, while ZIP 33109 has 594 at 732 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 33149 reports a median household income of $181,505 against $250,001 in ZIP 33109, with per-capita income of $106,219 vs $302,761. The share of adults holding a bachelor's degree or higher is 77.2% in 33149 and 67.5% in 33109. Poverty rate reads 5.5% vs 3.6%, and unemployment 2.8% 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 $1,575,300 in 33149 versus $2,000,001 in 33109, with median rent of $3,501 and — per month respectively. Homeownership rate is 66.6% vs 95.1%. 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.