Cement, California is a mining and manufacturing ghost town in Solano County now enveloped within the boundaries of the United States city of Fairfield.

Enormous conveyors, rock crushers, tube cement mills, and rotary kilns were created to process the raw quarried limestone.

The population of the town grew steadily to 500 people, and businesses and services were established to support the needs of the growing community.

This included the three-story Golden Gate Hotel, hospital, restaurant, bar, livery stable, post office, telephone exchange, park, baseball diamond, general store, fire station, churches, and a grade school.

The town owners constructed a single-track standard-gauge steam railway to get products and supplies to and from Cement and Tolenas which were 1.6 miles (2.6 kilometers) away from each other.

Cement is privately owned land and the owner's permission is required to visit the property that is approximately 600 acres (240 hectares).