Introduction to Martinez, California

Martinez, California, in Contra Costa county, is 6 miles NW of Concord, California (center to center) and 16 miles NE of Oakland, California. It's situated on the south side of the Carquinez Strait, largely surrounded by water and open space preserves and is part of the San Francisco Bay Area. The downtown area features a large number of notable old buildings. A Shell refinery plant is nearby. Martinez is a prominent port and petroleum processing location.

Martinez History

In 1824 Don Ygnacio Martinez received a land grant from the Mexican Government, which included the Alhambra Valley. The early settlers in the region utilized Martinez to purchase, sell and ship goods. The city catered to a large number of people passing through on their way to the gold country.

By 1860 Martinez was a prominent shipping port and was utilized by ships from all over world. The railroad reached the area in 1877. It was established as a city in 1876. The renowned John Muir was a resident from 1880 until he died in 1914. Shell Oil Company constructed an oil refinery close to Martinez in 1915 which created a building boom.

Martinez Attractions

  • John Muir National Historic Site includes John Muir's home and a vast woodland and grassland acreage.
  • Martinez Adobe ranch house is designated as a California Historical Landmark.
  • The downtown is known for its numerous antique shops.
  • Martinez Museum is situated in a Victorian cottage and showcases a variety of the city's artifacts.
  • John Muir Amphitheater offers theatrical and musical performances.

Martinez Activities

The Martinez Regional Shoreline is situated along the Carquinez Strait. The Briones Regional Park features rolling grassy hills and is home to a wide variety of wildlife. The Waterbird Regional Preserve is a notable destination for bird enthusiasts. The Carquinez Strait is a scenic location which provides opportunities for fishing and hiking. Crockett Hills Regional Park is located in the county.

The waterfront includes an active marina and is a popular area for fishing and hiking. The Benicia State Recreation Area is situated along the Carquinez Strait and offers bird watching and fishing locations. The scenic paths are utilized for walking, roller skating, jogging and bicycle riding. The Muir Woods, a beautiful redwood forest, is a short distance away. The prominent wineries in Napa Valley are nearby. Residents and visitors can easily enjoy the activities and entertainment in San Francisco.

The Mount Diablo State Park is one of the best ecological locations in the San Francisco Bay Area and includes an extensive trail system, a variety of wildlife and beautiful wildflowers. It also offers horseback riding and bicycle riding opportunities. The Six Flags Discovery Kingdom offers a good time for families.

Martinez Transportation

Amtrak has a station in Martinez.

Martinez Higher Education

Diablo Valley College is nearby.


Total Population 37,300
Male Share of the Population 48.2%
Female Share of the Population 51.8%
Senior Citizens 14.3%
Employed Population 16+ 19,057
Age of the Population 44


% of people married 48.4%
Average household size 3

Education and Earnings

Population % with Bachelor Degree or Higher 37.1%
Median Earnings25+ $50,832
Median Earnings Without High School Qualification $24,464
Median Earnings With High School Degree $37,410


Median Family Income $101,447
% Above Poverty Level 93.9%
% Below Poverty Level 6.1%

Commute & Sprawl

Average Commute Time 30 minutes
% Working from Home 5.4%
% Walking and Biking to Work 2.6%
% Using Public Transportation 6.3%


People Living Alone 27.7%
Median Gross Rent $1,467
Median House Value $435,500


Other(often includes Hispanic and African American) 33.9%
US/American 0.7%
English 10%
Irish 15.8%

Source: American Community Survey, U.S. Census Bureau, 2015, www.census.gov/programs-surveys/acs/.

Martinez Almanac

Category Value
Nearest Medium City 6 miles NW of Concord, California (center to center)
Nearest Large City 16 miles NE of Oakland, California
County Contra Costa
Standard Zip Codes 94553
Phone Area Codes 925
Time Zone Pacific (-8 hours from GMT)
Daylight Savings The city observes Daylight Saving Time.
Latitude 38.019
Longitude -122.133

Martinez Climate

Nearest Weather Stations


  • Temp ranges are avg daily min and max for the month
  • Precipitation is rainfall (and rainfall equiv of snowfall)

Distance 0.9 miles
Jan Temp 39 to 54 F
Apr Temp 46 to 71 F
Jul Temp 55 to 87 F
Oct Temp 50 to 76 F
Annual Precip 19.5 inches
Distance 14.4 miles
Jan Temp 39 to 56 F
Apr Temp 43 to 65 F
Jul Temp 60 to 85 F
Oct Temp 52 to 74 F
Annual Precip 23.9 inches
Distance 16.8 miles
Jan Temp 45 to 57 F
Apr Temp 51 to 66 F
Jul Temp 57 to 73 F
Oct Temp 55 to 72 F
Annual Precip 22.9 inches

Neighborhood and Nearby Area Names

According to the US Postal Service, Martinez, its neighborhoods, and/or surrounding areas are also referred to as:

Briones (94553)

Note that not all alternate names are acceptable for use in US Post Office addresses.

Nearby Cities and Towns

Location Population Median Family Income
Benicia 27,657 $111,446
Concord 126,268 $79,566
Hercules 24,838 $113,658
Pleasant Hill 34,155 $109,381
Vallejo 118,995 $65,160
Walnut Creek 66,799 $116,350

Source: American Community Survey, U.S. Census Bureau, 2015, www.census.gov/programs-surveys/acs/.

Martinez Hospitals

(Government - Local)
(925) 370-5000
Emergency Service: Yes

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Martinez High Schools

(Sorted by Number of Students)

150 E ST.
Serves 1,340 students.
Student/teacher ratio: 22.6

A Non-traditional School
Serves 257 students.
Student/teacher ratio: 14.3

A Non-traditional School
Serves 142 students.
Student/teacher ratio: 17.8

A Non-traditional School
Serves 75 students.
Student/teacher ratio: 25.9

614 F ST.
A Non-traditional School
Title I eligible, not participating.
Serves 74 students.
Student/teacher ratio: 14.2

Martinez Colleges

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