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2026 Compare Cities Overview:
Foster City, CA vs Altadena, CA

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Highlights
Are people in Altadena older or younger than people in Foster City?
- The Median Age in Altadena is 4.3 years older than in Foster City.

Are housing costs cheaper in Altadena or Foster City?
- Altadena housing costs are 34.0% less expensive than Foster City housing costs.

Which city has a longer commute, Altadena or Foster City?
- The average commute for residents of Altadena is 0.9 minutes shorter than it is for residents of Foster City.

Things to do in Foster City?
Foster City CA rests just south of San Francisco Bay full of outdoor fun like fishing & biking trails at Leo J Ryan Memorial Park combined with convenient access to notable Silicon Valley companies like Oracle.

Things to do in Altadena?
Altadena, California is a city located in Los Angeles County that provides its citizens outdoor activities around Eaton Canyon Natural Area and job opportunities through the National Register of Historic Places.

 Foster City, CAAltadena, CAUnited States
 Population  Unlock43,384329,725,481
 Median Income$173,721  Unlock$69,021
 Median Age  Unlock43.938.4
 Avg. Home Price$1,653,900  Unlock$338,100
 Unemployment Rate  Unlock10.9%6.0%
 Avg. Commute Time31.1  Unlock26.38
Cost of Living
Reviews for Foster City    4 Reviews
Jackie · San Mateo, CA
Great Family Town!
Over 18 years ago

Built on lagoons, great climate, good schools, lots of soccer and other sports for kids, plenty of parking and  More

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prashanth · San Mateo, CA
Foster City
Over 19 years ago

A great city to raise a family, safe, great weather around the year, good schools and plenty of recreation. But only if you can afford the hight cost of  More

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Therese · San Mateo, CA
Expensive But Worth It If You Can Afford It
Over 20 years ago

Landlords are able to command and receive high rent due to the following attributes: safety, weather and cleanliness of Foster City. The lagoon, waterways and gardens  More

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Reviews for Altadena    1 Reviews
Les · Altadena, CA
Altadena: High and Dry in L.A.
Over 16 years ago

I live just above the 1500 foot elevation at the edge of the San Gabriel Mountains in the L.A. suburb of Altadena--just above Pasadena. We're above the low morning fog  More

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Learn More About Foster City, California
Overview
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Learn More About Altadena, California
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