ZIP 94941 vs ZIP 94904

This side-by-side compares ZIP 94941 (Mill Valley, CA) and ZIP 94904 (Greenbrae, CA) using the same Census ACS 5-Year table fields for both — no averages swapped in, no national proxies. ZIP 94941 has a population of 30,496 at 529 people per square mile, while ZIP 94904 has 11,995 at 639 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 94941 reports a median household income of $209,870 against $169,118 in ZIP 94904, with per-capita income of $116,323 vs $131,960. The share of adults holding a bachelor's degree or higher is 75.9% in 94941 and 73.5% in 94904. Poverty rate reads 5.8% vs 5.2%, and unemployment 6.5% vs 4.7% — 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 $2,000,001 in 94941 versus $2,000,001 in 94904, with median rent of $3,077 and $2,712 per month respectively. Homeownership rate is 68.2% vs 62.8%. 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.