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Thornton, Colorado

Located in Adams County, Colorado, Thornton was established in 1953. One of Denver's first planned suburbs. Water pipeline highlighted western water wars.
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Founded 1953 | Population 148,938 | Peak 148,938 (2024) | County Adams County

Top 10 Most Important Events for Thornton, Colorado

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1942 Military Presence: Military installations became a major part of Thornton's identity and economy.
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1953 Planned Community Founded: Developer Sam Hoffman creates suburb north of Denver.
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2005 Water Pipeline Controversy: 70-mile pipeline sparks water rights debate.
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2020 N Line Rail Opens: Commuter rail to Denver Union Station.
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2023 CO's 6th Largest City: Approaching 150,000.
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Latest News in Thornton

Apr 18, 2026
Trump’s Psychedelic Pivot: Executive Order Accelerates Review of Mind-Altering Drugs for Mental Health Crisis
President Donald Trump signed an executive order on Saturday directing federal agencies to fast-track the review and potential app…
Apr 7, 2026
Health Experts Issue Warning Over Infected Rabbits In Colorado 
Residents of Fort Collins, Colorado, are doing double takes after spotting rabbits that look like they hopped out of a horror flic…
Feb 19, 2016
Trump Cruz Using Nazi Tactics Win Delegates
Washington, DC – Back in February 2016, the Republican presidential primaries turned ugly as rivals Donald Trump and Ted Cruz tr…
Jan 13, 2016
Florida Reforms its Death Penalty Sentencing
TALLAHASSEE, Fla. (January 13, 2016) — Florida’s governor, Rick Scott, signed a bill into law that shook up the state&#821…
Dec 11, 2015
Woman was Sentenced 119 Years Prison
DENVER, Dec. 11, 2015 — A Colorado woman was handed a staggering 119-year prison sentence on Friday for a string of financial cr…
Oct 16, 2015
Planned Parenthood Says Colorado Shooter Opposed Abortion
Colorado Springs, Colo. – In the wake of a deadly shooting at a local Planned Parenthood clinic, the organization quickly pointe…

Complete Historical Timeline

1942 Government
Military Presence
1953 Business
Planned Community Founded
2005 Politics
Water Pipeline Controversy
2020 Transport
N Line Rail Opens
2023 Business
CO's 6th Largest City

Did You Know?

1
One of Denver's first planned suburbs.
2
Water pipeline highlighted western water wars.
3
CO's 6th largest city.
4
Thornton is located in Adams County, Colorado.
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Thornton was founded in 1953.

Famous People from Thornton, Colorado

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Mike Manning
Actor, Model · Born Apr 12, 1987 · Age 38

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