Mail Ballot Elections

The Town of Castle Rock conducts its regular and special elections by mail ballot through coordinated elections with Douglas County.
Ballots are mailed to all active, registered electors who appear in the County's voter registration records.  Ballots are mailed approximately 20 days prior to the election.  Mail Ballot packets include the ballot, instructions for completing the ballot, a secrecy envelope to conceal the vote, and a return envelope.  The voter must pay postage if returning the ballot by mail.

Ballots cannot be forwarded, so any elector who has moved and did not update their address will not receive a ballot.  Undeliverable ballots are returned to the Douglas County Elections Office.  If you have registered to vote or updated your address at the Department of Motor Vehicles office, you should confirm your changes have been activated.  To verify your voter eligibility status, confirm changes that have been made, or to update your current address go to  
Completion of the self affirmation area on the return envelope is required.  The affirmation is to be signed by the voter to whom the ballot was issued.  The witness signature is only required if you are unable to sign your voter signature on the self affirmation statement.  
Ballots must be physically received by 7 p.m. on Election Day to be counted.  The postmark date does not count as the received date.  Ballots may be returned by mail or dropped off at authorized drop-off locations.  

Local 24-hour ballot drop-off locations

These locations are available 24-hours a day for ballot drop off.  Ballots must be placed in the ballot box by the close of the polls at 7 p.m. on Election Day.
Town of Castle Rock (Outside in Parking Lot)
100 N. Wilcox Street
Castle Rock, CO  80104

Douglas County Elections Office (Outside in Parking Lot)
125 Stephanie Place
Castle Rock, CO  80109

To view additional ballot drop-off locations within Douglas County go to Douglas County Elections Office.

Replacement ballots

A registered elector may obtain a replacement ballot if their ballot was
  • Lost, damaged or destroyed
  • Incorrectly voted
  • Never received in the mail
  • You are an inactive voter and never received a ballot

To request a replacement ballot please contact the Douglas County Elections Office.  You will need to provide identification and sign a sworn statement why a replacement ballot is being requested.  The original ballot that was issued will be voided.  If both the original and the replacement ballot are cast, neither ballot will be counted.

Absentee ballots

A registered elector may request to receive a ballot at an address other than what is registered no later than seven days prior to the election date.  Once an absentee ballot is mailed, any other ballot previously mailed shall be considered void and only the absentee ballot will be counted.  To request an absentee ballot please contact the Douglas County Elections Office.