ZIP 91902 vs ZIP 92139

This side-by-side compares ZIP 91902 (Bonita, CA) and ZIP 92139 (San Diego, CA) using the same Census ACS 5-Year table fields for both — no averages swapped in, no national proxies. ZIP 91902 has a population of 17,653 at 781 people per square mile, while ZIP 92139 has 35,125 at 3,749 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 91902 reports a median household income of $122,524 against $95,653 in ZIP 92139, with per-capita income of $58,165 vs $34,039. The share of adults holding a bachelor's degree or higher is 41.7% in 91902 and 25.8% in 92139. Poverty rate reads 5.9% vs 8.8%, and unemployment 4.1% 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 $984,900 in 91902 versus $630,800 in 92139, with median rent of $2,221 and $2,226 per month respectively. Homeownership rate is 76.1% vs 57.6%. 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.