Population
275,123
2025
+18.1% since 2020
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. Resident population, July 1 estimate.
Canyon County had an estimated 275,123 residents in 2025, up 18.1% (42,122 more people) since 2020. That is faster than Idaho as a whole (+9.8%), and the 2nd fastest growth of 43 counties in Idaho.
Data as of 2025 · updated
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In the Canyon County report
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275,123
2025
+18.1% since 2020
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. Resident population, July 1 estimate.
+5,684
2025
20.7 per 1,000 residents
+31,228 in total, 2021–2025
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. People moving in from other U.S. counties minus people moving out.
3.7%
2025
+0.8 pts since 2019
Source: U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics, 2025. Annual average unemployment rate.
3,929
2025
−7.7% since 2021
14.3 per 1,000 residents
Source: U.S. Census Bureau, Building Permits Survey, 2025. Housing units authorized by building permits in the year.
$76,488
2020–24
+34.4% since 2016–20
Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2020–24. American Community Survey 5-year estimate.
72,117
2023
+30.2% since 2018
Source: U.S. Census Bureau, County Business Patterns, 2023. Paid employees of private employers in mid-March (County Business Patterns).
Net domestic migration added 5,684 people in 2025: more people moved in from other U.S. counties than moved out.
Private employers had 72,117 paid employees in mid-March 2023, +30.2% since 2018 (County Business Patterns).
Unemployment averaged 3.7% in 2025, 0.8 points higher than in 2019 (before the pandemic).
Builders were authorized to start 3,929 new homes in 2025, or 14.3 per 1,000 residents.
Median household income was $76,488 in the 2020–24 American Community Survey, +34.4% since 2016–20.
Across the 3,107 U.S. counties with a comparable estimate, its population growth ranks 50th.
Part of the Boise City, ID metro area.
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| Year | Population | Change |
|---|---|---|
| 2025 | 275,123 | +7,679 |
| 2024 | 267,444 | +8,605 |
| 2023 | 258,839 | +7,442 |
| 2022 | 251,397 | +7,686 |
| 2021 | 243,711 | +10,710 |
| 2020 | 233,001 | – |
Census Bureau population estimates, July 1 of each year.
Canyon County grew by 42,122 people since 2020; the largest part came from domestic migration (+31,228).
| Component | 2025 | 2020–25 | Share |
|---|---|---|---|
| Natural changebirths minus deaths | +1,611 | +6,672 | |
| International migrationfrom and to other countries | +423 | +4,379 | |
| Domestic migrationfrom and to other U.S. counties | +5,684 | +31,228 | |
| Census adjustmentbalancing residual | −39 | −157 | |
| Total change | +7,679 | +42,122 |
Census Bureau population estimates, components of change, each year July 1 to June 30. The components add up to the change in the estimate; the Census adjustment is the small balancing figure the Bureau publishes.
| Measure | In Idaho | Among U.S. counties |
|---|---|---|
| Population growth | 2nd of 43 | 50th of 3,107 |
| Net domestic migration per 1,000 residents | 2nd of 43 | 117th of 3,108 |
| Private-sector job growth | 5th of 43 | 75th of 3,092 |
| Median household income | 9th of 43 | 746th of 3,107 |
| Lowest unemployment rate | 18th of 43 | 1,145th of 3,108 |
| New homes permitted per 1,000 residents | 5th of 43 | 49th of 3,005 |
1st = highest (lowest for unemployment). Counties are ranked only against others with a figure for the same period.
The County Growth and Demographics Report for Canyon County, ID as a PDF, from federal data: population and migration, housing and rents, permits, private employers and jobs, unemployment, ranks in the state and the country, and neighbouring counties, with a source next to every number. Pay once, no subscription.
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Canyon County grew faster than all 5 of its neighbouring counties (+18.1%, 2020–25).
Only Ada County had a higher median household income (2020–24) among its 5 neighbouring counties; Canyon County's was $76,488.
| County | Population2025 | Population change2020–25 | Net domestic migration per 1,000 residents2025 | Homes permitted per 1,000 residents2025 | Median household income2020–24 |
|---|---|---|---|---|---|
| Canyon County, ID This county | 275,123 | +18.1% | 20.7 | 14.3 | $76,488 |
| Payette County, ID | 27,824 | +8.8% | 4.1 | 6.5 | $67,673 |
| Ada County, ID | 546,141 | +9.6% | 15.6 | 9.6 | $91,502 |
| Gem County, ID | 21,773 | +13.0% | 11.4 | 6.6 | $64,605 |
| Owyhee County, ID | 12,661 | +5.6% | −11.8 | 2.8 | $64,406 |
| Malheur County, OR | 32,261 | +1.9% | −7.1 | 2.7 | $54,519 |
Census Bureau population estimates and building permits, American Community Survey 5-year income. Rates per 1,000 residents. – means no figure, or a base too small for a change or rate (it would swing on a few people). A figure from another period shows its year and is left out of the comparison.
Yes. Its population grew 18.1% between 2020 and 2025, about 42,122 more people (Census Bureau population estimates). Idaho as a whole changed +9.8% over the same years. That ranks 2nd of 43 counties in Idaho for population growth.
On net, about 5,684 people in 2025: that many more moved in from other U.S. counties than moved out (Census Bureau net domestic migration estimate).
It averaged 3.7% in 2025 (BLS Local Area Unemployment Statistics, annual average).
About 275,123 people, according to the U.S. Census Bureau's population estimate for July 1, 2025.
Private employers there had 72,117 paid employees in mid-March 2023, +30.2% since 2018 (Census Bureau County Business Patterns; government jobs and the self-employed are not counted).
Map, parcel and listing layers cover North and South Carolina only for now. This page and the other Idaho county pages carry the public federal growth figures.
Email me when Canyon County gets new Census numbers: population, building permits, jobs and income. About 4 emails a year, one click to stop.
Each number shows its own period. Changes compare the latest period with five years earlier (or the earliest period available). Beacon CRE last refreshed these figures on 2026-11-05. Figures come from public federal statistics and are informational only, not investment advice. Check the source before relying on a number. Methodology: how we compute every number. More on every layer: data sources and licences.
Jobs outside North and South Carolina use County Business Patterns (paid private-sector employees in mid-March); wages and government jobs are not included.