Contra Costa County

Contact Information

County of Contra Costa Administration Building
651 Pine Street, Room 107 
Martinez, CA 94553

Local Stats

Population – 1,135,127 (2016 estimate)
Incorporation Date – February 18, 1850
Water Mass – 81 sq mi
Land Mass – 723 sq mi

Quickly jump to glance at each incorporated city of Contra Costa County.
Click the city name to view more information about that city.

Antioch

Contact Information

City Hall
200 H Street
Antioch, CA 94509-1285

Local Stats

Population – 110,898 (2016 estimate)
Incorporation Date – February 6, 1872
Water Mass – 0.71 sq mi
Land Mass – 29.41 sq mi

Brentwood

Contact Information

150 City Park Way, Brentwood, CA 94513
Phone: (925) 516 – 5400
Email: info@brentwoodca.gov

Local Stats

Population – 60,532 (2016 estimate)
Incorporation Date – January 21, 1948
Water Mass – 0.01 sq mi
Land Mass – 14.85 sq mi

Clayton

Contact Information

City Hall
6000 Heritage Trail, Clayton, CA 94517
Phone: (925) 673 – 7300

Local Stats

Population – 11,992 (2016 estimate)
Incorporation Date – March 18, 1964
Water Mass – 0 sq mi
Land Mass – 3.84 sq mi

Concord

Contact Information

Concord Civic Center
1950 Parkside Dr. Concord. CA 94519
Phone: (925) 671 – CITY (2489)
Email: CityInfo@cityofconcord.org

Local Stats

Population – 128,726 (2016 estimate)
Incorporation Date – February 8, 1905
Water Mass – 0 sq mi
Land Mass – 30.54 mi

Danville

Contact Information

Town of Danville
510 La Gonda Way
Danville, CA 94526-1740 

Local Stats

Population – 44,631 (2016 estimate)
Incorporation Date – July 1, 1982
Water Mass – 0 sq mi
Land Mass – 18.08 sq mi

El Cerrito

Contact Information

City Hall
10890 San Pablo Avenue,
El Cerrito, CA 94530
Phone: 510-215-4300

Local Stats

Population – 25,400 (2016 estimate)
Incorporation Date – August 23, 1917
Water Mass – 10015 sq mi
Land Mass – 3.66 sq mi

Hercules

Contact Information

City Hall
111 Civic Drive, Hercules, CA 94547 Phone: (510) 799 – 8200

Local Stats

Population – 25,360 (2016 estimate)
Incorporation Date – December 15, 1900
Water Mass – 13.57 sq mi
Land Mass – 6.41 sq mi

Lafayette

Contact Information

3675 Mount Diablo Blvd., #210
Lafayette, CA 94549
Phone: (925) 284 – 1968
Email: cityhall@lovelafayette.org

Local Stats

Population – 26,103 (2016 estimate)
Incorporation Date – July 29, 1968
Water Mass – 0.17 sq mi
Land Mass – 15.05 sq mi

Martinez

Contact Information

Local Stats

Population – 38,259 (2016 estimate)
Incorporation Date – April 1, 1876
Water Mass – 1.0 sq mi
Land Mass – 12.63 sq mi

Moraga

Contact Information

329 Rheem Blvd.
Moraga, CA 94556.

Local Stats

Population – 17,416 (2016 estimate)
Incorporation Date – November 13, 1974
Water Mass – 0.01 sq mi
Land Mass – 9.46 sq mi

Oakley

Contact Information

3231 Main Street, Oakley, CA 94561
Phone: (925) 625 – 7000
Email: info@ci.oakley.ca.us

Local Stats

Population – 40,622 (2016 estimate)
Incorporation Date – July 1, 1999
Water Mass – 0.29 sq mi
Land Mass – 15.88 sq mi

Orinda

Contact Information

City Of Orinda
22 Orinda Way  
Orinda, CA 94563 
Phone: (925) 253 – 4200

Local Stats

Population – 19,470 (2016 estimate)
Incorporation Date – July 1, 1985
Water Mass – 0.01 sq mi
Land Mass – 12.85 sq mi

Pinole

Contact Information

2131 Pear Street, Pinole, CA 94564 
Phone: (510) 724-9000 
Email: cityhall@ci.pinole.ca.us

Local Stats

Population – 19,293 (2016 estimate)
Incorporation Date – June 25, 1903
Water Mass – 6.61 sq mi
Land Mass – 5.15 sq mi

Pittsburg

Contact Information

City of Pittsburg City Hall
65 Civic Avenue
Pittsburg, CA  94565
Phone: (925) 252 – 6900

Local Stats

Population – 70,679 (2016 estimate)
Incorporation Date – June 25, 1903
Water Mass – 1.96 sq mi
Land Mass – 17.19 sq mi

Pleasant Hill

Contact Information

City of Pleasant Hill
100 Gregory Lane
Pleasant Hill, CA 94523
Phone: 925-671-5270
Email: webmaster@pleasanthillca.org

Local Stats

Population – 34,853 (2016 estimate)
Incorporation Date – November 14, 1961
Water Mass – 0 sq mi
Land Mass – 7.08 sq mi

Richmond

Contact Information

Richmond City Hall
450 Civic Center Plaza

Richmond, CA 94804
Phone: (510) 620 – 6581

Local Stats

Population – 109,813 (2016 estimate)
Incorporation Date – August 7, 1905
Water Mass – 22.46 sq mi
Land Mass – 30.05 sq mi

San Pablo

Contact Information

City Of San Pablo
13831 San Pablo Avenue
San Pablo, CA 94806
510-215-3000

Local Stats

Population – 30,536 (2016 estimate)
Incorporation Date – April 27, 1948
Water Mass – 0 sq mi
Land Mass – 2.63 sq mi

San Ramon

Contact Information

7000 Bollinger Canyon Rd
San Ramon, CA 94583
Phone: (925) 973 – 2530

Local Stats

Population – 75,639 (2016 estimate)
Incorporation Date – July 1, 1983
Water Mass – 0.02 sq mi
Land Mass – 18.63 sq mi

Walnut Creek

Contact Information

Walnut Creek City Hall
1666 North Main Street
Walnut Creek, CA, 94596
Phone: (925) 943 – 5800 

Local Stats

Population – 69,122 (2016 estimate)
Incorporation Date – October 21, 1914
Water Mass – 0.01 sq mi
Land Mass – 19.76 sq mi


Do you need help with getting permitted here?
We can help you navigate the local cannabis regulations.
Contact us today!

Email Cannabis Research Consultants