Shall Judge MaryAnn "Mariana" Vielma of the Adams County Court be retained in office?
What does this office do?
- Deciding trials in the county
- Ruling on evidence and setting sentences in criminal cases
- Deciding family, probate, and civil disputes
Affects: Public Safety and Crime Control, Criminal Justice and Civil Liberties, Housing Affordability,
MaryAnn "Mariana" Vielma
Nonpartisan · Incumbent · Official site
Former prosecutor, county attorney, and magistrate with a University of St. Thomas law degree. Her work has included child support and mental health cases.
Track record
Track record — General
General · 9 records
Co-led the Colorado Bar Association and Colorado Judicial Institute’s Diversity on the Bench Coalition. Co-authored the first article in a public series about Colorado judges and their paths to the bench.
February 26, 2026
Source: cl.cobar.org
Left the bench to stand beside a defendant who had difficulty hearing through his hearing device, helping him understand the proceedings. The Colorado Judicial Institute’s director described the action in an interview.
March 13, 2024
Source: coloradojudicialinstitute.org
Received the Colorado Judicial Institute’s Judicial Excellence Award for her work as an Adams County Court judge.
October 26, 2023
Source: coloradojudicialinstitute.org
Received the Colorado Hispanic Bar Association’s Christopher A. Miranda Outstanding Hispanic Lawyer Award. The association recognized her efforts to increase diversity in the legal profession.
August 15, 2023
Source: lawweekcolorado.com
Served on the Colorado Commission on Judicial Discipline, the state body that reviews complaints about judges.
December 31, 2022
Source: content.leg.colorado.gov
Was honored at the Colorado Women’s Bar Association’s annual judicial reception.
May 18, 2022
Source: cl.cobar.org
Served on the Colorado and Denver bar associations’ joint committee on equal opportunity and inclusion in the legal profession.
December 18, 2020
Source: cl.cobar.org
Was appointed to the Adams County Court to replace retired Judge Dianna Roybal.
July 17, 2020
Source: lawweekcolorado.com
Served on the Colorado Bar Association’s Executive Council and Board of Governors, representing Adams and Broomfield counties.
June 23, 2016
Source: cobar.org
Track record — Legal Competence
Legal Competence · 2 favorable
Handled criminal cases as a prosecutor and child welfare, child support and mental health cases for the Adams County Attorney’s Office. Previously worked in a law school immigration clinic, completed a public defender internship and served as a district court law clerk.
February 25, 2021Favorable on Legal Competence
Source: cl.cobar.org
Represented the prosecution in a juvenile court case about whether the accused could stand trial (2013 CO 11). The Colorado Supreme Court upheld denial of an automatic second state-paid evaluation under rules for adults.
February 11, 2013Favorable on Legal Competence
Source: coloradojudicial.gov
Source: adamscountyco.gov