This is the official campaign website of Justin Martinez, Thornton City Councilmember and candidate for Mayor of Thornton, Colorado. Paid for by Committee to Elect Justin Martinez.

Mayor • Thornton 2027

Justin
Martinezfor Mayor of Thornton

"Building Thornton’s Future"

An engineer, economist, and father of two young girls — Justin Martinez is running to fight for working families, clean air & water, and an economy that works for everyone, not just the wealthy few.

Donate Now Join the Movement

Justin Martinez speaking at a campaign event

Elected to

Thornton City Council

2023-Present

A Record of Service

Smart Growth, Strong Voices, and a Sustainable Future

On City Council, Justin has already acted on water, transportation, elections, growth, neighborhood voice, and public trust. The mayor’s office is where that same work continues.

A concrete dam holding back a mountain reservoir

Protecting Our Water

Justin led a 2024 review of Thornton’s environmental policies, pushed for water-quality protections in mobile home communities, and voted in 2025 to support capping abandoned oil wells.

A sunlit commuter rail platform and tracks

More Ways to Get Around

A former regional economist, Justin serves on the DRCOG Board and chairs the North Area Transportation Alliance, working on transportation choices, mobility, and congestion for the north metro area.

Power lines crossing open land beside a small town

Protecting Thornton from the Impacts of Data Centers

In 2026, Justin proposed a temporary moratorium on new and expanding data centers so Thornton could study their impact on infrastructure and resources. City Council adopted it.

A hand placing a ballot into a ballot box

Elections, Not Appointments

In 2024, Justin supported changing the city charter so qualifying City Council vacancies are filled by special election instead of appointment.

Neighbors seated in a circle at an outdoor community meeting

Heard in the Neighborhood

Justin brought Ward meetings back so residents can meet their councilmember directly, raise concerns, and have a voice in decisions affecting their neighborhoods.

The columned entrance of a city hall, with an American flag above the doors

Building Public Trust

From reviving Ward meetings to establishing privacy guardrails, Justin has worked to make city government transparent and accountable to the people who live here.

See the full platform and record

Meet Justin

Rooted in Colorado.
Committed to Thornton.

Justin Martinez speaking at a community cultural event

Economist, Engineer, Councilmember

A life built in Thornton

Justin came to Colorado in 2002 to attend CU Boulder, earned economics degrees from CU and Colorado State, and began his career as an economist at the Denver Regional Council of Governments. Today he works as a software engineer, lives in Thornton with his wife Susie and their two daughters, and has served on Thornton City Council since 2023.

Read Justin’s full story

Power This Campaign

Every dollar you give goes directly to knocking on doors, running ads, and turning out voters. This campaign is built on small donations — not corporate PAC money.

Donate Securely via ActBlue

Paid for by Committee to Elect Justin Martinez. Contributions are not tax-deductible. State law requires us to use our best efforts to collect and report the name, mailing address, occupation, and employer for each individual whose contributions exceed $100 in a calendar year.

Stay Connected

JustinMartinezfor Mayor of Thornton