Population
135,771
2025
+8.9% since 2020
Source: U.S. Census Bureau, Population Estimates Program (Vintage 2025), 2025. Resident population, July 1 estimate.
Bonneville County, ID: population growth, jobs and income
Bonneville County gained 1,978 residents between 2024 and 2025 (+1.5%).
Bonneville County had an estimated 135,771 residents in 2025, up 8.9% (11,041 more people) since 2020. That is slower than Idaho as a whole (+9.8%), and the 17th fastest growth of 43 counties in Idaho.
Data as of 2025 · updated
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In the Bonneville County report
One-time $99 PDF: everything on this page for Bonneville County, ranked against Idaho and the U.S., plus these figures that are not on the free page:
- Median gross rent$1,133/mo2020–24
- Vacant homes, incl. seasonal and second homes7.0%2020–24
- New homes permitted, last 12 months1,3362025-10/2026-09
- Rent growth, 5 yearsIn the report
- Permits in 5+ unit buildingsIn the report
- IRS income moving in (net AGI)In the report
- Neighbouring-county comparison tableIn the report
What's inside: 5 pages
- 1 Summary, headline numbers and ranks (free preview)
- 2 Ranks and the neighbouring-county table
- 3 Migration, with IRS mover and income flows
- 4 Rent, vacant homes, permits and employers
- 5 Every source and the methods
Headline numbers
Net domestic migration
+1,207
2025
8.9 per 1,000 residents
+6,851 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.
Unemployment rate
3.1%
2025
+0.7 pts since 2019
Source: U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics, 2025. Annual average unemployment rate.
New homes permitted
1,219
2025
+10.8% since 2021
9.0 per 1,000 residents
Source: U.S. Census Bureau, Building Permits Survey, 2025. Housing units authorized by building permits in the year.
Median household income
$79,068
2020–24
+28.7% since 2016–20
Source: U.S. Census Bureau, American Community Survey 5-year estimates, 2020–24. American Community Survey 5-year estimate.
Private-sector employment
63,119
2023
+23.5% since 2018
Source: U.S. Census Bureau, County Business Patterns, 2023. Paid employees of private employers in mid-March (County Business Patterns).
What the numbers say
Net domestic migration added 1,207 people in 2025: more people moved in from other U.S. counties than moved out.
Private employers had 63,119 paid employees in mid-March 2023, +23.5% since 2018 (County Business Patterns).
Unemployment averaged 3.1% in 2025, 0.7 points higher than in 2019 (before the pandemic).
Builders were authorized to start 1,219 new homes in 2025, or 9.0 per 1,000 residents.
Median household income was $79,068 in the 2020–24 American Community Survey, +28.7% since 2016–20.
Across the 3,107 U.S. counties with a comparable estimate, its population growth ranks 263rd.
Part of the Idaho Falls, ID metro area.
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Bonneville County population by year
| Year | Population | Change |
|---|---|---|
| 2025 | 135,771 | +1,978 |
| 2024 | 133,793 | +2,280 |
| 2023 | 131,513 | +1,859 |
| 2022 | 129,654 | +1,582 |
| 2021 | 128,072 | +3,342 |
| 2020 | 124,730 | – |
Census Bureau population estimates, July 1 of each year.
What drove the change in Bonneville County
Bonneville County grew by 11,041 people since 2020; the largest part came from domestic migration (+6,851).
| Component | 2025 | 2020–25 | Share |
|---|---|---|---|
| Natural changebirths minus deaths | +764 | +3,649 | |
| International migrationfrom and to other countries | +10 | +633 | |
| Domestic migrationfrom and to other U.S. counties | +1,207 | +6,851 | |
| Census adjustmentbalancing residual | −3 | −92 | |
| Total change | +1,978 | +11,041 |
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.
How it ranks
| Measure | In Idaho | Among U.S. counties |
|---|---|---|
| Population growth | 17th of 43 | 263rd of 3,107 |
| Net domestic migration per 1,000 residents | 14th of 43 | 636th of 3,108 |
| Private-sector job growth | 9th of 43 | 144th of 3,092 |
| Median household income | 6th of 43 | 616th of 3,107 |
| Lowest unemployment rate | 5th of 43 | 466th of 3,108 |
| New homes permitted per 1,000 residents | 11th of 43 | 190th of 3,005 |
1st = highest (lowest for unemployment). Counties are ranked only against others with a figure for the same period.
Get the county report — $99
The County Growth and Demographics Report for Bonneville 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.
Add 2 neighbouring counties for $50: the Madison County and Bingham County reports too, $149 for all 3.
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Neighbouring counties
Over 2020–25, Bonneville County's population change (+8.9%) was ahead of 5 of its 7 neighbouring counties and behind 2 (Teton County and Jefferson County).
4 of its 7 neighbouring counties had a higher median household income than Bonneville County's $79,068 (2020–24).
| County | Population2025 | Population change2020–25 | Net domestic migration per 1,000 residents2025 | Homes permitted per 1,000 residents2025 | Median household income2020–24 |
|---|---|---|---|---|---|
| Bonneville County, ID This county | 135,771 | +8.9% | 8.9 | 9.0 | $79,068 |
| Teton County, ID | 13,254 | +12.9% | 3.7 | 29.0 | $99,805 |
| Madison County, ID | 55,172 | +4.2% | −14.0 | 15.3 | $60,160 |
| Caribou County, ID | 7,252 | +3.4% | 1.2 | 2.5 | $68,782 |
| Bingham County, ID | 51,153 | +6.4% | −0.9 | 4.0 | $77,878 |
| Jefferson County, ID | 35,297 | +13.6% | 6.3 | 8.8 | $86,679 |
| Teton County, WY | 23,333 | −0.2% | −10.8 | 6.7 | $124,172 |
| Lincoln County, WY | 21,180 | +7.8% | 6.9 | 11.4 | $89,330 |
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.
Questions
Is Bonneville County growing?
Yes. Its population grew 8.9% between 2020 and 2025, about 11,041 more people (Census Bureau population estimates). Idaho as a whole changed +9.8% over the same years. That ranks 17th of 43 counties in Idaho for population growth.
How many people moved to Bonneville County?
On net, about 1,207 people in 2025: that many more moved in from other U.S. counties than moved out (Census Bureau net domestic migration estimate).
What is the unemployment rate in Bonneville County?
It averaged 3.1% in 2025 (BLS Local Area Unemployment Statistics, annual average).
What is the population of Bonneville County?
About 135,771 people, according to the U.S. Census Bureau's population estimate for July 1, 2025.
How many jobs are in Bonneville County?
Private employers there had 63,119 paid employees in mid-March 2023, +23.5% since 2018 (Census Bureau County Business Patterns; government jobs and the self-employed are not counted).
What Beacon CRE covers in Idaho
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.
Bonneville County data alerts
Email me when Bonneville County gets new Census numbers: population, building permits, jobs and income. About 4 emails a year, one click to stop.
Sources and method
- U.S. Census Bureau, Population Estimates Program (Vintage 2025)
- U.S. Bureau of Labor Statistics, Local Area Unemployment Statistics
- U.S. Census Bureau, Building Permits Survey
- U.S. Census Bureau, American Community Survey 5-year estimates
- U.S. Census Bureau, County Business Patterns
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.