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Wyoming population by year, 1990 to 2025

Wyoming is the smallest state in every benchmark year, growing 30 percent from 453,401 in 1990 to a record 588,753 in 2025.

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What the data shows

  • Wyoming: 453K in 1990, 589K in 2025.

About this chart

Wyoming ranks 50th among the states in 1990, 2000, 2010 and 2025, so its story is about growth and swings rather than rank. The population went from 453,401 in 1990 to 588,753 in 2025, a gain of about 135,000 people or 29.9 percent. The 2025 figure is the highest in the series.

The path was bumpy. Wyoming was flat in the late 1990s, grew quickly in the late 2000s to 564,531 in 2010, then slid from about 586,000 in 2015 to 577,669 in 2020 before recovering. It is up 19.1 percent since 2000 and 4.3 percent since 2010. The data are Census Bureau resident estimates for July 1 of each year.

The data

Source: U.S. Census Bureau population estimates, July 1 (vintages 1999, 2000–2010 intercensal, 2020 and 2025), resident population of Wyoming, thousands. Retrieved November 4, 2026.

Population of Wyoming, Residents, 1990 to 2025, 1990–2025
DateWyoming
1990453K
1991458K
1992464K
1993469K
1994475K
1995478K
1996480K
1997480K
1998480K
1999480K
2000494K
2001495K
2002500K
2003504K
2004509K
2005514K
2006523K
2007535K
2008546K
2009560K
2010565K
2011568K
2012577K
2013583K
2014583K
2015586K
2016585K
2017580K
2018579K
2019580K
2020578K
2021580K
2022582K
2023585K
2024587K
2025589K

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Frequently asked questions

What is the population of Wyoming?

Wyoming had about 589,000 residents (588,753) in July 2025, according to Census Bureau estimates. That ranks 50th, making it the least populous state.

Is Wyoming growing?

Slowly. Wyoming is up 4.3 percent since 2010 and 1.9 percent since 2020. It dipped between 2015 and 2020 but reached a record 588,753 in 2025.

How much has Wyoming grown since 1990?

Wyoming added about 135,000 people, from 453,401 in 1990 to 588,753 in 2025. That is a gain of about 30 percent.

Where does this data come from?

U.S. Census Bureau population estimates, July 1 (vintages 1999, 2000–2010 intercensal, 2020 and 2025), resident population of Wyoming, thousands. Retrieved November 4, 2026. You can download the full table as a CSV from this page.

Can I turn this chart into a video?

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