The Ballot Brief
Adams County, Colorado

Adams County Assessor

Swingle and Zavala are on the November 3, 2026 ballot. Names follow official Adams County election filings.

About this race

Democratic incumbent Thomas Swingle was unopposed in his June 30, 2026 primary (51,806 votes, 100%); no Republican candidate filed, per the certified canvass. Unaffiliated candidate Glenna Marie Zavala also appears on the county's November 3, 2026 sample ballot, having qualified by petition, per the Adams County Clerk and Recorder.

What this office does

Property assessor. The assessor determines the taxable value of every parcel of real estate and, in many states, of business property, using state-set methods and market data. Those values, multiplied by rates set by other elected bodies, produce property tax bills. The assessor also administers exemptions such as homestead or senior exemptions.

This race. Every voter in Adams County votes on this seat. The sitting officeholder, Thomas Swingle, is on the ballot.

We use AI to research and write election information. Errors are possible. Verify important details with official sources.

Colorado › Adams County › Adams County Assessor

Thomas Swingle

DemocraticIncumbent

Top priorities

From the campaign site

  • Modernizing assessment systems with GIS and data-driven tools
  • Transparency and accountability in property assessments
  • Experience-based leadership drawing on two decades in the office
Biography

Swingle is the sitting Adams County Assessor, per the county's official assessor page. He has more than 20 years of experience in property assessment, including as a GIS specialist and real estate appraiser, and holds a Colorado Ad Valorem Appraiser license, per his campaign site. He was unopposed for re-election in the Democratic primary, per the certified canvass.

Campaign site (opens in a new tab)

Glenna Marie Zavala

Unaffiliated

Top priorities

From the campaign site

  • Saving Adams County taxpayers from inflated property taxes
  • Property assessments that make sense
  • Putting Adams County taxpayers first
Biography

Glenna Marie Zavala is a fourth-generation Colorado native who has worked in the Adams County Assessor's Office for the past decade, setting up more than 1,200 new subdivisions on the county tax roll, per her campaign site. She worked eight years in the county's Employment First Program, earlier held a state insurance license, and managed home loans at Decision One Mortgage, per the campaign site. She qualified for the November 3, 2026 ballot by petition as an Unaffiliated candidate, per the Adams County Clerk and Recorder.

Campaign site (opens in a new tab)
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Voting info and more

Voting info and more
Questions about this race

Who is running for Adams County Assessor in 2026?

2 candidates are tracked for Adams County Assessor on the November 3, 2026 ballot: Thomas Swingle and Glenna Marie Zavala. Candidate information follows official Adams County election filings; verify with the official election office linked below.

When is the Adams County Assessor election in Colorado?

Election Day is Tuesday, November 3, 2026. Registration deadlines, early voting dates and mail ballot rules for Colorado are on the Colorado election hub at theballotbrief.com.

How do I see my exact Adams County ballot?

Enter your ZIP code in the lookup at theballotbrief.com for the statewide and congressional races, or a full street address to add the county, city and district contests for that location.

Verify this race

Candidate roster from official Adams County and state election office filings, last verified October 19, 2026. Bios and priorities carry their attribution inline.

Cross-check with the official Colorado election office, or see the full Adams County sample ballot and your exact ballot by address.

The rest of your Adams County ballot

20 tracked races in Adams County, Colorado. Landed here from another county's search? Look up your own ballot below.

Also on your ballot
Adams County CoronerColorado Senate District 21Colorado Senate District 24See all 20 Adams County races
Candidate profiles
Thomas Swingle, full profileGlenna Marie Zavala, full profileOfficial Colorado election office