Zip Code 94306
Palo Alto, California — Santa Clara County
📍 ZIP code 94306 is in Palo Alto, Santa Clara County, California.
ZIP code 94306 is located in Palo Alto, Santa Clara County, California. It is a zip code in the Pacific (PST/PDT) Time Zone with an estimated population of 27,527. The area code for ZIP code 94306 is 408.
Quick Answer
Zip code 94306 is in Palo Alto, California (Santa Clara County). It has a population of 27,527, median household income of $186,479, and median home value of $2M+.
Population
27,527
Income
$186,479
Home Value
$2M+
Climate
79°F / 39°F
About Zip Code 94306
Zip code 94306 is located in Palo Alto, California, within Santa Clara County. Home to approximately 27,527 residents, this area sits at an elevation of 43 ft and falls within the Pacific (PST/PDT) timezone. The local area code is 408.
The median household income is $186,479 per year, which is above the national median of $70,784. Homes in this zip code have a median value of $2M+, and the cost of living index is 250 (150% above the national average of 100).
Summers average a high of 79°F while winters drop to 39°F. The area receives about 15 in of rain annually. The zip code covers 4.2 square miles of land area.
Key Statistics
27,527
$186,479
$2M+
Pacific (PST/PDT)
408
43 ft
4.2 sq mi
41
11,853
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Compare With Nearby Zip Codes
| Metric | 94306 | 94305 | 94301 | 94303 | 94043 | 94040 |
|---|---|---|---|---|---|---|
| City | Palo Alto, CA | East Palo Alto, CA | East Palo Alto, CA | East Palo Alto, CA | Mountain View, CA | Mountain View, CA |
| Population | 27,527 | 17,912 | 17,126 | 47,123 | 32,042 | 35,581 |
| Median Income | $186,479 | $72,470 | $235,529 | $148,031 | $180,781 | $184,494 |
| Home Value | $2M+ | $2M+ | $2M+ | $1,825,000 | $1,647,500 | $2M+ |
| Cost of Living | 250 | 250 | 250 | 250 | 250 | 250 |
| Median Age | 41 | 22.6 | 45.4 | 38.1 | 36.1 | 34.9 |
Cost of Living
100 = National Average. Palo Alto's cost of living is 150% above the national average.
vs. State Avg
Above
Affordability
Expensive
Income-to-Home
10.7x
Demographics
Zip code 94306 has a population of 27,527 people with a median age of 41. There are 11,853 housing units in this area.
Racial & Ethnic Composition
Source: U.S. Census Bureau American Community Survey estimates.
Population History
Palo Alto (94306) population trend from 2010 to 2024
↓ -20.9%Source: U.S. Census Bureau estimates and American Community Survey data.
Climate & Weather
79°F
39°F
15 in
0 in
Palo Alto experiences mild summers with average highs around 79°F. Winters are mild with lows averaging 39°F. The area receives virtually no snowfall.
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Housing & Economy
Median Home Value
$2M+
Median Household Income
$186,479
With 11,853 housing units across 4.2 square miles, 94306 has a housing density of 2,822 units per square mile. The home price-to-income ratio is 10.7x.
Location & Geography
Latitude
37.4157°
Longitude
-122.1308°
Land Area
4.2 sq mi
Water Area
0 sq mi
Nearby Zip Codes
Zip codes closest to 94306 (Palo Alto, CA) with distances:
ZIP Codes with Similar Income Nationwide
The five U.S. ZIP codes whose median household income is closest to 94306's $186,479. A way to compare Palo Alto to economically similar communities elsewhere in the country.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
ZIP Codes with Similar Demographics
The five U.S. ZIP codes whose racial and ethnic composition most closely matches 94306 (Palo Alto, CA). Similarity is measured by cosine distance on the five-category ACS demographic vector.
Computed from U.S. Census Bureau ACS 5-Year Estimates by the Zip Code Near Me Data Team.
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People Also Ask
What zip code is Palo Alto, California?
Palo Alto, California uses zip code 94306.
What county is zip code 94306 in?
Zip code 94306 is located in Santa Clara County, California.
What is the population of zip code 94306?
The population of zip code 94306 is 27,527 with a median age of 41.
Is 94306 in Palo Alto, California?
Yes, zip code 94306 is in Palo Alto, Santa Clara County, California. The area code is 408.
Frequently Asked Questions
What city is zip code 94306 in?
Zip code 94306 is in Palo Alto, California. It is part of Santa Clara County and uses the Pacific (PST/PDT) timezone.
What is zip code 94306?
Zip code 94306 is a U.S. postal code in Palo Alto, California (Santa Clara County). It has a population of 27,527 and covers 4.2 square miles.
What is the population of zip code 94306?
The population of zip code 94306 (Palo Alto, CA) is 27,527 with a median age of 41. There are approximately 11,853 housing units in this area.
What is the median income in zip code 94306?
The median household income in zip code 94306 (Palo Alto, CA) is $186,479 per year. The cost of living index is 250 (100 = national average).
What is the average home price in zip code 94306?
The median home value in zip code 94306 (Palo Alto, CA) is $2M+. The cost of living index is 250 compared to the national average of 100.
What county is zip code 94306 in?
Zip code 94306 is located in Santa Clara County, California. The primary city is Palo Alto.
What is the area code for zip code 94306?
Zip code 94306 in Palo Alto, CA uses area code 408. It is located in the Pacific (PST/PDT) timezone.
Is zip code 94306 a good place to live?
Zip code 94306 (Palo Alto, CA) has a cost of living index of 250 (100 = national average), a median household income of $186,479, and median home values of $2M+. The median age is 41. Visit the full page for demographics, climate, and nearby zip code comparisons.
What is the cost of living in zip code 94306?
The cost of living index for zip code 94306 (Palo Alto, CA) is 250, where 100 represents the national average. This area is above the national average. Median home value: $2M+.
What schools serve zip code 94306?
Zip code 94306 in Palo Alto, California is served by the local school district of Santa Clara County. For specific school information, check your state's department of education or GreatSchools.org.
All demographic data on this page is sourced from the U.S. Census Bureau American Community Survey (ACS) 5-Year Estimates. ZIP code boundary and delivery data is sourced from the United States Postal Service (USPS). Data is updated periodically and may not reflect the most current figures. Census Bureau ZIP Code Tabulation Areas (ZCTAs) may differ slightly from USPS ZIP code boundaries.
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Data Sources
- Population, income, housing, age, and demographics
- U.S. Census Bureau, American Community Survey 5-Year Estimates, 2019-2023 vintage.
- ZIP to city and county mapping
- USPS and HUD-USPS ZIP-County Crosswalk.
- Time zones and area codes
- IANA tz database and NANPA.
- Elevation
- U.S. Geological Survey National Elevation Dataset (NED), via the USGS Elevation Point Query Service. Mapped to each ZCTA centroid coordinates. Last refreshed 2026-05-19.
- Last refreshed
- 2026-05-18.