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Apply for Marriage License

Apply for Marriage License

Marriage License

Apply in person

Apply for a marriage license in person by 4:15 p.m. at a county clerk’s office (application process takes approximately 20 minutes, no appointment needed):

  • Boulder: 1750 33rd Street
  • Longmont: 529 Coffman Street
  • Lafayette: 1376 Miners Drive

Get started by submitting your marriage license application information online. View our guide for help with filing the application online.


Both applicants must provide the following to obtain a marriage license:

  • ID (Please bring one of the following):
    • Current U.S. driver’s license
      • Colorado licenses with the black strip that reads, “Not valid for federal identification…” are not accepted
    • Passport
    • Original or certified copy of birth certificate
  • Social Security number (if a foreign applicant doesn’t have a Social Security number they must complete a Sworn Statement Affidavit in our office)
  • $30 fee for the license (cash, check and credit card accepted; minimal fee for using a credit card of $0.75 + 2.26% of the total)

If an applicant cannot appear in person, the other applicant must apply in person and provide the following:

Divorced Applicants

If either applicant is divorced, provide the following in addition to the items listed above:

  • Date of divorce (month/day/year)
  • Place of divorce (city and state)
  • Type of court for the divorce

Widowed Applicants

If either applicant is widowed, provide the following in addition to the items detailed above:

  • Date of death (month/day/year)
  • Place of death (city and state)

Age Requirements

Applicants for a marriage license must be 18 years of age or older. Applicants who are 16 and 17 years of age require consent from one of the following categories:

  • Both parents (or parent with legal custody)
  • Guardian
  • Judicial approval

View the parental or guardian consent form.

Applicants 15 years of age and under require a court order and consent of both parents (or parent/guardian with legal custody).


Marriages are prohibited between the following:

  • Ancestor and descendant
  • Brother and sister
  • Uncle and niece
  • Aunt and nephew

Marriage License Details

  • Marriage licenses must be used within 35 days from the date of issue, anywhere in Colorado
  • Marriage licenses may be obtained in any county, regardless of where the ceremony will take place in Colorado
  • Witnesses are not required
  • Blood tests are not required


A marriage may be performed by the following:

  • The couple themselves
  • Judge or court magistrate
  • Religious or tribal official authorized to perform a ceremony
  • Other public official authorized to perform a ceremony

If the couple chooses to perform the ceremony, they will complete the lower portion of the marriage license.

Find judges and magistrates who perform ceremonies in Boulder County.

Proxy Marriages

A proxy marriage may be performed if:

  • One party to the proxy marriage is a Colorado resident, and
  • One party is a member of the armed forces of the United States who is stationed in another country or in another state in support of combat or another military operation, or is a government contractor, or an employee of a government contractor, working in support of the armed forces of the United States or in support of United States military operations in another country or in another state.

If the parties to the marriage plan on having a proxy marriage, one of the applicants must apply in person and provide the following:

Recording a Marriage License

Licenses may be submitted by mail or in person at the Recording Division office for recording. If you bring the license in person it will be recorded at that time and returned to you. If you mail the license, it will be returned within two weeks from the time we received it. To record the license:

  • Complete the ‘marriage certificate’ portion of the license
  • Signatures of witnesses are not required
  • Bring in person to 1750 33rd St., Suite 201, Boulder, CO or 529 Coffman St. #100, Longmont, CO
  • Mail the license to 1750 33rd St., Suite 201, Boulder, CO 80301

Marriage License Details

  • A marriage license must be used within 35 days including the date of issue
  • A marriage license may only be used in the state of Colorado

Contact Us

If a marriage license is not returned to the parties one month after the ceremony, contact the office. The Recording Division may not have received the license from the officiating party.

Contact Us

Recording Division

303-413-7775 (Fax)
Hours: 8 a.m. – 4:30 p.m. M-F


Boulder: 1750 33rd Street
Map & Directions

Longmont: 529 Coffman Street
Map & Directions

Lafayette: 1376 Miners Drive
Map & Directions

Mailing Address

1750 33rd Street, Suite 201
Boulder, CO 80301