Weld County Overtakes Larimer in Population and Growth

I grew up in Parker, Colorado dating back to the early 80s when Main Street was literally a brick road. There was one grocery store in town back then - Hill's Market - which ultimately expanded to include a few others.

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I left Parker in the late 90s and haven't lived there since, but I've visited and it's now a massive place compared to what it was when I grew up there.

I remember when Highland's Ranch began to develop, and all of the little towns across Douglas County sort of grew outward until they were basically all connected in one massive suburban area just 20 miles south of Denver.

Douglas County has been the fastest growing in Colorado for a number of years, but that title has now been taken by another county right here in Northern Colorado.

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Weld County has earned the spot as the #1 fastest growing large county in the State of Colorado, as of July 1 last year, according to a new estimate released by the US Census Bureau.

Not only has Weld become the fastest growing county in the state, it also has surpassed its neighbor for the first time ever, beating out Larimer County in total population. 377,292 people live in Larimer County, now 378,426 live in Weld.

The State of Colorado as a whole has surpassed 6 million people for the first time ever, up from 5.988 million in 2024 to 6.012 million in 2025.

With all of the development happening on the east side of I-25 in particular, it's easy to see why Weld County has grown so fast, and will continue to do so.