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San Mateo, California Map and Directory


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San Mateo County, California locator map According to the United States Census Bureau, San Mateo is a City that is located in San Mateo County, California at 37.56 degrees North and 122.33 degrees West.  The city's time zone is America/Los Angeles, and the city's primary telephone area code is 650.  The land area of San Mateo is about 12.13 square miles, whereas the water area of the city is about 3.75 square miles.  San Mateo County's land area is about 448 square miles, so the city occupies about 2.7 percent of the county's total land area.

The Census Bureau estimates that San Mateo had about 104,430 residents in 2019, which is approximately 8,609 people per square mile of land area. 

According to recent American Community Survey data, the median household income in San Mateo was about $124,842 per year. 

The California counties map at upper right shows San Mateo County, highlighted in red.  Use the menu below to display interactive maps of San Mateo, either in a frame on this page or in full-screen mode. 

Use the menu below to display categorized San Mateo directories. 

San Mateo Products and Services Directory

Selected San Mateo, California Listings

These randomly selected San Mateo listings provide some insight into the city's cultural environment and economic climate.

7 Eleven Store
  • Fruits & Vegetables
Back in Shape Chiropractic - Cathy Clark DC
  • Alternative Medicine
  • Chiropractors
  • Alternative Medicine Practitioners
Bay Financial Company
  • Financial Planning Consultants & Services
BOTT & Associates Inc
  • Accounting, Auditing & Bookkeeping Services
  • Bookkeeping Services
Carlstrom Productions Inc
  • Marketing & Public Relations
  • Party Planning
  • Direct Marketing
Fear of Flying Clinic
  • Clinics
My San Mateo Plumber Hero
  • Plumbing Service & Repair
Peninsula Chiropractic - Mark L Wong DC
  • Alternative Medicine
  • Chiropractors
  • Alternative Medicine Practitioners
San Mateo Foot & Ankle Care - Kenneth J Passeri DPM
  • Podiatry Physicians & Surgeons

Nearby California Cities and Towns *

* Parenthesized numbers indicate economic activity levels.

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