martinezMartinez is a city in Contra Costa County, California. Martinez is located north of Concord and south of the Carquinez Strait in the San Francisco Bay Area. Other East Bay nearby cities include Benicia, across the Carquinez Strait, Pleasant Hill, Lafayette, and Walnut Creek. The cities size is 13.1 miles square with 1 square mile is in the water. The city of Martinez was named after Ygnacio Martinez, a rancher. John Muir, the naturalist, lived in Martinez from 1880 until he died in 1914.

The population of Martinez was about 39,000 in the 2020 census. The downtown has many beautiful old buildings and quant antique shops. Martinez has a mild Mediterranean climate with warm dry summers with sea breezes and morning fog. Summers are warm and dry, with some morning fog during sea breezes. Martinez is much warmer than in other parts of the Bay Area that are closer to the Pacific.

The racial makeup of Martinez is 77% White, 15% Hispanic or Latino, 8% Asian with the balance being other races. 96% live in households with the balance living in non-institutionalized or institutionalized group quarters. 20% are under 18 years old, 8% are between 18 and 24 years old, 26% are 25 to 44 years old, 34% are 45 to 64 years old and 12% are over 65 years of age. The median age is about 42 years old.

As of 2017, about 50% of voters were registered at Democrats, about 23% were registered Republican and the balance declined to say.

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