ZIP 91011 vs ZIP 91020
Source:
La Canada Flintridge, CA — Montrose, CA
This side-by-side compares ZIP 91011 (La Canada Flintridge, CA) and ZIP 91020 (Montrose, CA) using the same Census ACS 5-Year table fields for both — no averages swapped in, no national proxies. ZIP 91011 has a population of 20,280 at 661 people per square mile, while ZIP 91020 has 8,415 at 4,320 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 91011 reports a median household income of $241,875 against $72,125 in ZIP 91020, with per-capita income of $105,500 vs $48,967. The share of adults holding a bachelor's degree or higher is 75.1% in 91011 and 52.8% in 91020. Poverty rate reads 3.5% vs 9.1%, and unemployment 5.0% vs 5.5% — 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 91011 versus $911,200 in 91020, with median rent of $2,873 and $2,358 per month respectively. Homeownership rate is 86.9% vs 23.5%. 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.
Compare different ZIP codes:
| Metric | 91011 La Canada Flintridge, CA | 91020 Montrose, CA |
|---|---|---|
| Population | 20,280 | 8,415 |
| Median Household Income | $241,875 | $72,125 |
| Per Capita Income | $105,500 | $48,967 |
| Median Age | 44.6 | 40.2 |
| Bachelor's Degree or Higher | 75.1% | 52.8% |
| Poverty Rate | 3.5% | 9.1% |
| Unemployment Rate | 5.0% | 5.5% |
| Median Home Value | $2,000,001 | $911,200 |
| Median Rent (monthly) | $2,873 | $2,358 |
| Homeownership Rate | 86.9% | 23.5% |
| Population Density (per sq mi) | 661 | 4,320 |
Values highlighted in green indicate the better metric where applicable. Source: U.S. Census Bureau ACS 2023.
What are common questions about this comparison?
How do ZIP codes 91011 and 91020 compare?▼
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All data sourced from the U.S. Census Bureau, American Community Survey (ACS) 5-Year Estimates (2023).
PlainZIP is not affiliated with the U.S. Census Bureau or any government agency.