Assessor (Elected Office)

Address: 301 Wilcox Street, Castle Rock, CO 80104
Phone: 303.660.7450 | Fax: 303.479.9751

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Board of County Commissioners (Elected Office)

Address: 100 Third Street, Castle Rock, CO 80104
Phone: 303.660.7401 | Fax: 303.484.4344

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Clerk and Recorder (Elected Office)

Divisions: Clerk to the Board | Elections | Motor Vehicle | Recording

Address: 301 Wilcox Street, Castle Rock, CO 80104
Phone: 303.660.7469 | Fax: 303. 814.2750

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Community Development

Divisions:  Community and Resource Services | Economic Development | Parks, Trails and Building Grounds | Planning | Zoning

Address: 100 Third Street, Castle Rock, CO 80104
Phone: 303.660.7460 | Fax: 303.379.4198

Parks, Trails and Building Grounds Division
Address: 9651 S. Quebec St., Littleton, CO 80130
Phone: 720.733.6990 | Fax: 303.470.0916

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 Coroner (Elected Office)

Address: 4000 Justice Way, Castle Rock, CO 80109
Phone: 303.814.7150 (answered round-the-clock by an investigator) | Fax: 877.274.7495

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County Administration 

Divisions: Board of Equalization |  Office of Veterans Affairs

Address: 100 Third Street, Castle Rock, CO 80104
Phone: 303.660.7401 | Fax: 303.484.4434

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County Attorney

Address: 100 Third Street, Castle Rock, CO 80104
Phone: 303.660.7414 | Fax: 303.688.6596

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 Facilities, Fleet & Emergency Support Services

Divisions: Colorado State University (CSU) Extension Office | Fairgrounds and Events Center

Address: 3026 North Industrial Way, Castle Rock, CO 80109
Phone: 303.663.7707 | Fax: 303.663.7718

CSU Extension Office
Address: 410 Fairgrounds Road, Castle Rock, CO 80104
Phone: 720.733.6930 | Fax: 303.688.4862

Fairgrounds and Events Center
Address: 500 Fairgrounds Drive, Castle Rock, CO 80104
Phone: 720.733.6900 | Fax: 720.733.6901

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Finance

Divisions: Accounting | Budget | Purchasing

Address: 100 Third Street, Castle Rock, CO 80104
Phone: 303.660.7430 | Fax: 303.479.9228

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Human Resources

Address: 100 Third Street, Castle Rock, CO 80104
Phone: 303.660.7427 | Fax: 877.288.0401

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Human Services

Address: 4400 Castleton Court, Castle Rock, CO 80109
Phone: 303.688.4825 | Fax: 303.688.0292

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Information Technology

Divisions: Administration | Application Development & Support | GIS | Operations| Program Management

Address: 100 Third Street, Castle Rock, CO 80104
Phone: 303.660.7464

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Open Space

Address: 100 Third Street, Castle Rock, CO 80104
Phone: 303.660.7495 | Fax: 303.663.2064

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Public Trustee (Appointed Office)

Address: 402 Wilcox Street, Castle Rock, CO 80104
Phone: 303.660.7417 | Fax: 303.814.3034

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Public Works Engineering

Divisions: Building | Engineering | Stormwater | Traffic

Address: 100 Third Street, Castle Rock, CO 80104

Building Division Phone: 303.660.7497 | Fax: 303.479.7271
Engineering Division Phone: 303.660.7490 | Fax: 303.379.4198
Traffic Services Division Phone: 303.663.6237 | Fax: 303.484.6355
Stormwater Division Phone:  303.660.7490  | Fax: 303.379.4198

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Public Works Operations

Address: 3030 North Industrial Way, Castle Rock, CO 80109
Phone: 303.660.7480 | Fax: 303.814.3319

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Sheriff (Elected Office)

Address: 4000 Justice Way, Castle Rock, CO 80109
Phone: 303.660.7505 or toll free at 1.800.654.2733

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Surveyor (Elected Office)  

Address: 300 E. Mineral Avenue, Suite #1
Phone: 303.327.7495
Fax:  303-713-1897

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Treasurer (Elected Office) 

Address: 100 Third Street, Castle Rock, CO 80104
Phone: 303.660.7455 | Fax: 303.942.3706