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Martinez, California Map and Directory


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Current Weather Conditions in Martinez, California
Source: Accuweather
Contra Costa County, California locator map According to the United States Census Bureau, Martinez is a City that is located in Contra Costa County, California at 38.02 degrees North and 122.13 degrees West.  The city's time zone is America/Los Angeles, and the city's primary telephone area code is 925.  The land area of Martinez is about 12.63 square miles, whereas the water area of the city is about 1.00 square miles.  Contra Costa County's land area is about 716 square miles, so the city occupies about 1.8 percent of the county's total land area.

The Census Bureau estimates that Martinez had about 38,297 residents in 2019, which is approximately 3,032 people per square mile of land area. 

According to recent American Community Survey data, the median household income in Martinez was about $107,328 per year. 

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

Use the menu below to display categorized Martinez directories. 

Martinez Products and Services Directory

Selected Martinez, California Listings

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

America Glazing & Aluminum
  • Metals
  • Door & Window Dealers
  • Windows & Parts Dealers
Apple Appraisal
  • Real Estate Appraisers
Bring Rover Over
  • Pet Care Services
  • Pet Sitting & Day Care
  • Pet Training
  • Dog Training
Contra Costa County Health PLN
  • Clinics & Medical Centers
Cowan & Thompson Construction
  • Building Contractors
  • Masonry Contractors
Denise's Family Law & Divorce
  • Family Law Attorneys
  • Legal Services
  • Arbitration & Mediation Services
  • Divorce & Mediation Services
Guys Smog
  • Auto Emissions Testing & Repair
Martinez Museum
  • Cultural Attractions, Events & Facilities
  • Tourist Information & Attractions
  • Museums
Muir Lodge Motel
  • Lodging
  • Hotels
  • Motels
  • Vacation Home Rental
  • Cabin, Cottage & Chalet Rental
P J Mc Namara Landscaping
  • Landscape Contractors
  • Landscape Services
Product Components Corporation
  • Home Improvement Stores
  • Hardware Dealers
  • Fasteners
S & S Distributors
  • Auto Parts Retail
Shell Western States Federal Credit Union
  • Credit Unions

Nearby California Cities and Towns *

* Parenthesized numbers indicate economic activity levels.

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