Washington County, Colorado

Colorado Senate District 1

2 candidates are tracked for Colorado Senate District 1 on the November 3, 2026 ballot: Jamie Jeffery and Byron Pelton. Candidate information follows official Washington County election filings; verify with the official election office linked below.

About this race

Jamie Jeffery (Democratic), Byron Pelton (Republican) are on the November 3 ballot for Colorado Senate District 1; Byron Pelton is the sitting member, per the General Assembly roster (leg.colorado.gov). Major-party nominees were chosen at the June 30 primary; minor-party nominees by assembly or petition and unaffiliated candidates by petition. The field is the Secretary of State's 2026 General Election candidate list. This seat is elected by district; only the district covering your address appears on your ballot.

What this office does

State legislator. State legislators write and vote on state laws and the state budget, which fund schools, roads, prisons, universities and health programs, and set the rules for local governments and elections. Each member represents one district and serves on committees that shape bills before a floor vote. Terms are two years in most state houses and four in most state senates.

This race. Elected by district: only voters who live in the district see this race on their ballot. The sitting officeholder, Byron Pelton, is on the ballot.

Colorado › Washington County › Colorado Senate District 1

Jamie Jeffery

Democratic

Top priorities

Drawing on her teaching background to inform education policy that benefits students and families
Environmental stewardship and protecting Colorado's outdoor and recreational spaces

Per the campaign site.

Biography

Jamie Jeffery is an educator with 31 years of experience and a native Coloradan who lives in Lochbuie, according to her campaign site. She is the Democratic candidate for Colorado Senate District 1, which spans urban Greeley and the Eastern Plains, against Republican incumbent Byron Pelton.

Campaign site (opens in a new tab)

Byron Pelton

Republican Incumbent

Top priorities

Defending agriculture from urban-focused state policy
Supporting oil and gas energy production in northeast Colorado
Addressing gaps in behavioral health funding and services

Per the campaign site.

Biography

Byron Pelton is the Republican state senator for Senate District 1 in northeast Colorado and the Senate Minority Caucus Chair, per the Colorado General Assembly. A Colorado native and U.S. Navy veteran, he served six years as a Logan County commissioner before his legislative service, per his campaign site, and sponsored 28 bills in the 2026 session on agriculture, transportation, energy and local government.

Campaign site (opens in a new tab)

Next on your ballotColorado House District 63

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Voting info and more

Questions about this race

Who is running for Colorado Senate District 1 in 2026?

When is the Colorado Senate District 1 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 Washington 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 Washington County and state election office filings. Bios and priorities carry their attribution inline.

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

The rest of your Washington County ballot

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

See all 2 Washington County races

Candidate profiles

Jamie Jeffery, full profile Byron Pelton, full profile Official Colorado election office