Contra Costa Centre sits at an elevation of 92 feet (28 m).

According to the United States Census Bureau, the CDP has a total area of 0.642 square miles (1.662 km2), all of it land.

The racial makeup of Contra Costa Centre was 3,488 (65.0%) White, 216 (4.0%) African American, 18 (0.3%) Native American, 1,155 (21.5%) Asian, 17 (0.3%) Pacific Islander, 171 (3.2%) from other races, and 299 (5.6%) from two or more races.

There were 3,211 housing units at an average density of 5,004.7 per square mile (1,932.3/km2),of which 2,995 were occupied, 750 (25.0%) by the owners and 2,245 (75.0%) by renters.

Other parts are in the K-12 Mount Diablo Unified School District.