| ZIP Code | 94028 |
|---|---|
| City | Portola Valley |
| State | California (CA) |
| County | San Mateo County |
| Area Code | 650 |
| Elevation | 662 ft |
| Latitude | 37.374883 |
|---|---|
| Longitude | -122.212675 |
| Timezone | Los Angeles (DST) |
| FIPS | 06081 |
| ZIP Type | Standard |
| Status | Active |
Race & Ethnicity
Age Breakdown
Key Indicators
| Median Age | 56.4 yrs ↑ 11% since 2019 |
|---|---|
| Avg Household Size | 2.51 |
| Below Poverty | 3.8% ▼ 62% below avg |
| College Grads | 86.1% ▲ 122% above avg |
| Unemployment | 3.1% ▼ 38% below avg |
| HS Graduate | 268 (6%) |
| Some College | 85 (1.9%) |
| Associates | 274 (6.1%) |
| Bachelors | 218 (4.8%) |
| Graduate Degree | 3,654 (81.2%) |
Education
Housing Tenure
Home Value Distribution
Financials
| Median HH Income | $250,001 ▲ 228% above avg ↑ 7% since 2019 |
|---|---|
| Median Home Value | $2,000,000+ ▲ 617% above avg |
| Home/Income Ratio | 8.0x (nat avg ~3.5x) |
| Median Rent | $3,501/mo ↑ 20% since 2019 |
| Total Units | 2,783 |
| Vacant Units | 158 |
| Avg HH Size | 2.51 |
Income Distribution
How People Get to Work
Commute Time
Year Built
Summary
| Total Units | 2,783 |
|---|---|
| Vacant | 158 |
| Owner Occupied | 84.6% |
| Renter Occupied | 15.4% |
| Avg HH Size | 2.51 |
ZIP code 94028 is located in Portola Valley, California, within San Mateo County. With a population of 6,645, this is a lightly populated ZIP code with an older community — the median age is 56.4 years. Economically, 94028 is a affluent ZIP code: the median household income of $250,001 is more than double the national average.
Real estate in ZIP code 94028 represents among the most expensive housing markets in the country. The median home value of $2,000,000+ is more than double the national average. Renters can expect to pay around $3,501 per month in median rent. Homeownership is strong here — 84.6% of occupied units are owner-occupied, suggesting an established, stable residential community.
The population of 94028 is primarily White (75.76%). Residents are highly educated — 86.1% hold a bachelor's degree or higher, which is more than double the national average. Poverty affects a relatively small share of residents at 3.8%. Household income has grown by 7% since 2019.
The unemployment rate in 94028 stands at 3.1%, which is below the national average. A notably high share of workers — 40% — work from home, reflecting the professional makeup of the area. As in most parts of the country, driving alone is the dominant commute mode at 48%.
Overall, ZIP code 94028 in Portola Valley, CA is characterized as affluent, highly educated, an older community, and predominantly owner-occupied. With 6,645 residents, a median household income of $250,001, and a median home value of $2,000,000+, it offers a clear picture of life in this part of California.