Douglas County Government, Colorado

Contact Information

100 Third St. | Castle Rock, CO 80104 | Phone: 303-660-7400
Office Hours: 8:00 a.m. to 5:00 p.m. Monday through Friday.
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Department Information

Douglas County Government
100 Third St.
Castle Rock, CO 80104
Phone: 303.660.7400
Fax:
303.688.1293
Office Hours:
8:00 a.m. to 5:00 p.m.

As a new or prospective resident to Douglas County we hope the phone numbers and websites listed below will help you as you settle into your new home. Additional services may be found on our other Living pages.

Animal Control:

  • Castle Rock Animal Control 303.660.1000
  • Colorado Humane Society 303.781.4418
  • Douglas County Animal Control 303.660.7529
  • Douglas County Sheriff  303.660.7500
  • Dumb Friends League 303.751.5772
  • Highlands Ranch Animal Control 303.660.7500
  • Lone Tree Animal Control 303.339.8150
  • Parker Animal Services 303.841.9800

Cable Television Service 

Carpools

Clean Air Program

  • Colorado Air Pollution Control Division 303.692.3214
  • Tri-County Health Department 303.761.1340

Community

Electric Service

  • Intermountain Rural Electric Association 303.688.3100
  • Xcel Energy 800.895.4999

Fire Departments - in case of an emergency dial 911

Hospitals

Media

Natural Gas Service

  • Aquila 800.303.0752
  • Xcel Energy 800.895.4999

Other

Passports

Phone Service

Post Offices

  • Castle Rock 303.814.0261 
  • Franktown 303.663.1245
  • Highlands Ranch 303.227.5500
  • Larkspur 303.681.2449
  • Lone Tree 303.799-1950
  • Louviers 303.791.1005
  • Parker 303.805.2109 
  • Sedalia 720.733.1896 

Schools

  • Douglas County Schools 303.387.0100

Snowplowing

  • Castle Rock 720.733.2462
  • Douglas County 303.660.7480
  • Highlands Ranch 303.660.7480
  • Larkspur 303.681.2324
  • Road Closures 303.639.1111

Vehicles

  • Driver's License 303.688.4625
  • License Plates 303.660.7440
  • Vehicle Registration 303.660.7440
  • Emissions Testing / Air Care Colorado 303.456.7090

Voter Registration

  • County Clerk 303.660.7444
  • Castle Rock 303.660.1015
  • Larkspur 303.681.2325
  • Parker 303.841.0353

Water and Sewer Services