94404 vs 94403 — Compare ZIP Codes
Side-by-side comparison. Blue = ZIP 94404, Orange = ZIP 94403.
Quick verdict: ZIP 94404 is wealthier, lower poverty rate, lower unemployment, more educated, higher work-from-home share. ZIP 94403 is higher home values, more affordable rent, more diverse.
Quick Facts
ZIP 94404
Foster City city, CA
View full profile →- Population35,950
- Median Income$182,417
- Median Home Value$1683k
- Median Rent$3,501
- Median Age40.1 yrs
- Poverty Rate4.7%
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
35,95043,459
Median Income
$182,417$179,825
Median Home Value
$1683k$1726k
Median Rent
$3,501$3,083
Median Age
40.1 yrs38.5 yrs
Poverty Rate
4.7%6.4%
Demographics
ZIP 94404
Foster City city, CA
View full profile →- White %34.7%
- Black %1.7%
- Asian %52.1%
- Hispanic %6.8%
- Age 0–17 %21.5%
- Age 18–64 %60.5%
- Age 65+ %18.1%
- Bachelor's+ %74.5%
- Diversity Index60/100
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 %
34.7%43.0%
Black %
1.7%1.6%
Asian %
52.1%29.0%
Hispanic %
6.8%24.1%
Age 0–17 %
21.5%19.3%
Age 18–64 %
60.5%65.3%
Age 65+ %
18.1%15.4%
Bachelor's+ %
74.5%60.3%
Diversity Index
60/10067/100
Economy
ZIP 94404
Foster City city, CA
View full profile →- Median Income$182,417
- Unemployment %4.5%
- IRS Net Migration+1,769
- Work From Home %29.8%
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
$182,417$179,825
Unemployment %
4.5%5.3%
IRS Net Migration
+1,769+2,139
Work From Home %
29.8%22.4%
Housing
ZIP 94404
Foster City city, CA
View full profile →- Median Home Value$1683k
- Median Rent$3,501
- Owner Occupied %51.1%
- Broadband %97.7%
- Vacant %3.8%
- Median Year Built1977
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
$1683k$1726k
Median Rent
$3,501$3,083
Owner Occupied %
51.1%54.0%
Broadband %
97.7%96.1%
Vacant %
3.8%7.4%
Median Year Built
19771965
Climate & Location
ZIP 94404
Foster City city, CA
View full profile →- Snow Days/Year0 days
- Elevation (ft)31 ft
- Nearest Airport3.1 miles (5.0 km)
- Distance to Coast0.8 miles (1.4 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)
31 ft31 ft
Nearest Airport
3.1 miles (5.0 km)3.5 miles (5.6 km)
Distance to Coast
0.8 miles (1.4 km)1.6 miles (2.5 km)
Infrastructure
ZIP 94404
Foster City city, CA
View full profile →- Work From Home %29.8%
- Walkability (0–100)55
- Broadband %97.7%
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 %
29.8%22.4%
Walkability (0–100)
5561
Broadband %
97.7%96.1%
Frequently Asked Questions
How do ZIP 94404 and 94403 compare?
ZIP 94404 is wealthier, lower poverty rate, lower unemployment, more educated, higher work-from-home share. ZIP 94403 is higher home values, more affordable rent, more diverse.
What do the blue and orange colors mean?
Blue represents the first ZIP (94404), 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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