ZIP 94521 vs ZIP 94528
A side-by-side comparison of ZIP Code 94521 and ZIP Code 94528: population, income, housing, and more.
ZIP 94521 and ZIP 94528 are ZIP Code areas in California. This page compares them across population, income, housing, education, commuting, and how each has changed since 2019.
ZIP 94521 has the higher population (41,118 vs 1,000 in ZIP 94528). ZIP 94528 has the higher median home value ($2,000,001 vs $823,100 in ZIP 94521). Since 2019, ZIP 94528's population has grown faster (+160.4% vs -5.0%).
Population, income & housing
| ZIP 94521 | ZIP 94528 | |
|---|---|---|
| Population | 41,118 | 1,000 |
| Median age | 43.0 yrs | 37.8 yrs |
| Median household income | $127,312 | — |
| Median home value | $823,100 | $2,000,001 |
| Median gross rent | $2,388 | — |
| Housing units | 16,083 | 408 |
| Homeownership rate | 73.3% | 100.0% |
| Bachelor's degree or higher | 44.0% | 85.0% |
| Unemployment rate | 5.6% | 8.2% |
Trends (ACS 5-year, 2019–2023)
| ZIP 94521 | ZIP 94528 | |
|---|---|---|
| Population | 43,281 → 41,118 (-5.0%) | 384 → 1,000 (+160.4%) |
| Median household income | $106,938 → $127,312 (+19.1%) | $143,013 → $250,001 (+74.8%) |
| Median home value | $603,600 → $823,100 (+36.4%) | $2,000,001 → $2,000,001 (+0.0%) |
| Median gross rent | $1,877 → $2,388 (+27.2%) | — |
ZIP 94521
43,28141,118
$106,938$127,312
$603,600$823,100
$1,877$2,388
ZIP 94528
3841,000
$143,013$250,001
$2,000,001$2,000,001
Age & race/ethnicity
Age distribution (share)
| ZIP 94521 | ZIP 94528 | |
|---|---|---|
| Under 5 | 5.4% | 7.7% |
| 5 to 17 | 13.5% | 19.0% |
| 18 to 24 | 7.3% | 7.3% |
| 25 to 34 | 12.1% | 0.0% |
| 35 to 44 | 14.3% | 29.8% |
| 45 to 54 | 12.9% | 5.4% |
| 55 to 64 | 14.8% | 17.5% |
| 65 to 74 | 12.1% | 0.0% |
| 75 and over | 7.5% | 13.3% |
Race & ethnicity (share)
| ZIP 94521 | ZIP 94528 | |
|---|---|---|
| White (non-Hispanic) | 53.5% | 78.3% |
| Black or African American | 4.8% | 0.0% |
| American Indian & Alaska Native | 0.2% | 0.0% |
| Asian | 15.6% | 1.7% |
| Native Hawaiian & Pacific Islander | 0.3% | 0.0% |
| Some other race | 0.7% | 7.8% |
| Two or more races | 7.9% | 1.6% |
| Hispanic or Latino | 17.0% | 10.6% |
Educational attainment (age 25+)
Share of adults 25+
| ZIP 94521 | ZIP 94528 | |
|---|---|---|
| No high school diploma | 5.5% | 0.0% |
| High school graduate | 17.6% | 2.4% |
| Some college or associate's | 32.9% | 12.6% |
| Bachelor's degree | 30.2% | 25.8% |
| Graduate or professional degree | 13.8% | 59.2% |
Commute to work
How workers get to work (share)
| ZIP 94521 | ZIP 94528 | |
|---|---|---|
| Drove alone | 62.9% | 67.2% |
| Carpooled | 8.5% | 9.2% |
| Public transit | 5.4% | 9.2% |
| Walked | 1.5% | 10.2% |
| Bicycle | 1.5% | 0.0% |
| Worked from home | 18.2% | 4.2% |
| Other means | 2.0% | 0.0% |
Housing
Units in structure (share)
| ZIP 94521 | ZIP 94528 | |
|---|---|---|
| 1-unit, detached | 66.9% | 100.0% |
| 1-unit, attached | 9.1% | 0.0% |
| 2 to 4 units | 5.9% | 0.0% |
| 5 to 19 units | 8.6% | 0.0% |
| 20 or more units | 9.4% | 0.0% |
| Mobile home & other | 0.2% | 0.0% |
Poverty & households
| ZIP 94521 | ZIP 94528 | |
|---|---|---|
| Poverty rate | 5.6% | 10.6% |
| Average household size | 2.61 | 2.70 |
| Mean commute (minutes) | 33 | 39 |
| Median year structure built | 1974 | 1981 |