94028 vs 94403 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 94028, Orange = ZIP 94403.
Quick verdict: ZIP 94028 is wealthier, higher home values, lower poverty rate, lower unemployment, more educated, higher work-from-home share. ZIP 94403 is more affordable rent, more diverse.
Quick Facts
ZIP 94028
Portola Valley town, CA
View full profile →- Population6,645
- Median Income$250,001
- Median Home Value$2000k
- Median Rent$3,501
- Median Age56.4 yrs
- Poverty Rate3.8%
ZIP 94403
San Mateo city, CA
View full profile →- Population43,459
- Median Income$179,825
- Median Home Value$1726k
- Median Rent$3,083
- Median Age38.5 yrs
- Poverty Rate6.4%
Visual comparison (same scale)
Population
6,64543,459
Median Income
$250,001$179,825
Median Home Value
$2000k$1726k
Median Rent
$3,501$3,083
Median Age
56.4 yrs38.5 yrs
Poverty Rate
3.8%6.4%
Demographics
ZIP 94028
Portola Valley town, CA
View full profile →- White %78.5%
- Black %0.1%
- Asian %7.7%
- Hispanic %12.5%
- Age 0–17 %16.5%
- Age 18–64 %45.3%
- Age 65+ %38.2%
- Bachelor's+ %78.0%
- Diversity Index36/100
ZIP 94403
San Mateo city, CA
View full profile →- White %43.0%
- Black %1.6%
- Asian %29.0%
- Hispanic %24.1%
- Age 0–17 %19.3%
- Age 18–64 %65.3%
- Age 65+ %15.4%
- Bachelor's+ %60.3%
- Diversity Index67/100
Visual comparison (same scale)
White %
78.5%43.0%
Black %
0.1%1.6%
Asian %
7.7%29.0%
Hispanic %
12.5%24.1%
Age 0–17 %
16.5%19.3%
Age 18–64 %
45.3%65.3%
Age 65+ %
38.2%15.4%
Bachelor's+ %
78.0%60.3%
Diversity Index
36/10067/100
Economy
ZIP 94028
Portola Valley town, CA
View full profile →- Median Income$250,001
- Unemployment %3.0%
- IRS Net Migration+327
- Work From Home %39.6%
ZIP 94403
San Mateo city, CA
View full profile →- Median Income$179,825
- Unemployment %5.3%
- IRS Net Migration+2,139
- Work From Home %22.4%
Visual comparison (same scale)
Median Income
$250,001$179,825
Unemployment %
3.0%5.3%
IRS Net Migration
+327+2,139
Work From Home %
39.6%22.4%
Housing
ZIP 94028
Portola Valley town, CA
View full profile →- Median Home Value$2000k
- Median Rent$3,501
- Owner Occupied %84.6%
- Broadband %97.2%
- Vacant %5.7%
- Median Year Built1968
ZIP 94403
San Mateo city, CA
View full profile →- Median Home Value$1726k
- Median Rent$3,083
- Owner Occupied %54.0%
- Broadband %96.1%
- Vacant %7.4%
- Median Year Built1965
Visual comparison (same scale)
Median Home Value
$2000k$1726k
Median Rent
$3,501$3,083
Owner Occupied %
84.6%54.0%
Broadband %
97.2%96.1%
Vacant %
5.7%7.4%
Median Year Built
19681965
Climate & Location
ZIP 94028
Portola Valley town, CA
View full profile →- Snow Days/Year0 days
- Elevation (ft)380 ft
- Nearest Airport7.8 miles (12.6 km)
- Distance to Coast7.6 miles (12.2 km)
ZIP 94403
San Mateo city, CA
View full profile →- Snow Days/Year0 days
- Elevation (ft)31 ft
- Nearest Airport3.5 miles (5.6 km)
- Distance to Coast1.6 miles (2.5 km)
Visual comparison (same scale)
Snow Days/Year
0 days0 days
Elevation (ft)
380 ft31 ft
Nearest Airport
7.8 miles (12.6 km)3.5 miles (5.6 km)
Distance to Coast
7.6 miles (12.2 km)1.6 miles (2.5 km)
Infrastructure
ZIP 94028
Portola Valley town, CA
View full profile →- Work From Home %39.6%
- Walkability (0–100)35
- Broadband %97.2%
ZIP 94403
San Mateo city, CA
View full profile →- Work From Home %22.4%
- Walkability (0–100)61
- Broadband %96.1%
Visual comparison (same scale)
Work From Home %
39.6%22.4%
Walkability (0–100)
3561
Broadband %
97.2%96.1%
Frequently Asked Questions
How do ZIP 94028 and 94403 compare?
ZIP 94028 is wealthier, higher home values, lower poverty rate, lower unemployment, more educated, higher work-from-home share. ZIP 94403 is more affordable rent, more diverse.
What do the blue and orange colors mean?
Blue represents the first ZIP (94028), orange the second (94403). The same colors are used in the map markers and comparison bars.
Where does this data come from?
Data is from the U.S. Census Bureau and other federal sources. See our Methodology page for details.
How can I compare other ZIP codes?
From any ZIP page, use the "Compare with Another ZIP" tool, or go to /compare/XXXXX-vs-YYYYY (replace with two 5-digit ZIP codes).
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