Population

Is population growing or shrinking?

Updated annually
It grew by 9,500 between 2023 and 2024. Changes in population can reflect birth and death rates, immigration patterns, regional shifts, and even the overall health of the economy. The 2.6% annual increase was primarily driven by people moving from other states.
In the decade between 2014 and 2024, Weld County, CO’s population grew by 33.3%.

+9.53K

population change (2023 to 2024)

+2.6%

percent change in population (2023 to 2024)
Since 2000, Weld County, CO’s population increased 23 out of 24 years. The largest increase occurred between 2021 and 2022, when Weld County, CO gained 10,700 residents. Its largest decline occurred between 2009 and 2010 when there were 181 fewer residents.

Weld County, CO gained 9,500 residents between 2023 and 2024.

Annual population change

A county’s population is influenced by three factors:
  • Natural population change: If births outnumber deaths in a given year, natural population growth is positive. If deaths exceed births, it is negative. Between 2023 and 2024 natural population change was positive in Weld County, CO, with births exceeding deaths by 2,500.
  • Immigration: international migration directly into or out of a county: If more people move in than move out, population change from immigration is positive. If more people move out than move in, it’s negative. Between 2023 to 2024, Weld County, CO’s population change from immigration was positive with about 1,200 more people coming from another country directly to Weld County, CO than leaving.
  • Domestic migration, moving between counties: Between 2023 to 2024, Weld County, CO’s population change from domestic migration was positive with about 5,800 more people coming from any other county in the US.

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Between 2023 and 2024, domestic migration was the primary driver of population growth in Weld County, CO.

Components of population change

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Methodology

USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.

The analysis was generated with the help of AI and reviewed by USAFacts for accuracy.

Page sources

USAFacts endeavors to share the most up-to-date information available. We sourced the data on this page directly from government agencies; however, the intervals at which agencies publish updated data vary.