Is Boundary County, ID's population growing or shrinking?
Refreshed annually
It grew by 141 between 2024 and 2025. Changes in population can reflect birth and death rates, immigration patterns, regional shifts, and even the overall health of the economy. The 1% annual increase was primarily driven by people moving from other states.
In the decade between 2015 and 2025, Boundary County, ID’s population grew by 23.8%.
+141
population change (2024 to 2025)
+1%
percent change in population (2024 to 2025)
Since 2000, Boundary County, ID’s population increased 20 out of 25 years. The largest increase occurred between 2021 and 2022, when Boundary County, ID gained 703 residents. Its largest decline occurred between 2019 and 2020 when there were 199 fewer residents.
Boundary County, ID gained 141 residents between 2024 and 2025.
Annual population change, 2001–2025
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What contributes to population change in Boundary County, ID?
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 2024 and 2025 natural population change was negative in Boundary County, ID, with deaths exceeding births by two.
- 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 2024 to 2025, Boundary County, ID’s population change from immigration was negative with about three more people leaving for another country directly from Boundary County, ID than coming.
- Domestic migration, moving between counties: Between 2024 to 2025, Boundary County, ID’s population change from domestic migration was positive with about 149 more people coming from any other county in the US.
Between 2024 and 2025, domestic migration was the primary driver of population growth in Boundary County, ID.
Components of population change from previous year, 2011–2025
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Methodology
USAFacts standardizes data, in areas such as time and demographics, to make it easier to understand and compare.
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.
