Jefferson County, Idaho: commercial real estate data.
Jefferson County, Idaho has a population of 33,154 across 1,094 square miles, up 12.8 percent since the 2020 census base. County output reached $1.37 bn in 2024, 739 establishments operate here, and the SBA record carries 57 7(a) approvals worth $10.5 m.
121 sourced county values · tier FULL · 11 sections
Jefferson County
How many people live in Jefferson County
- Population33,154
- Households10,199
- Average household size3.25
- Median household income$86,679
- Median age32.8
- Median gross rent$1,138 per month
- Median owner-occupied home value$408,400
- Home value to household income4.7 times
- Annual rent as a share of median income15.8 percent
- Adults 25 and over with a bachelor degree or higher27.4 percent
- Adults 25 and over with a graduate degree8.4 percent
- Adults 25 and over19,538
- Population under 1810,724
- Share under 1832.3 percent
- Population 65 and over3,954
- Share 65 and over11.9 percent
- Working age population, 18 to 6418,476
- Civilian labor force15,752
- Unemployment rate2.7 percent
- Labor force participation, adults 18 and over70.2 percent
- Rank by population among Idaho counties12th of 44
- Rank by population among US county-equivalents1390th
Jefferson County is the 12th largest of 44 Idaho counties by population. A median home costs 4.7 times median household income, which is an affordable ownership market by national standards. Residents under 18 outnumber those 65 and over, at 32.3 percent against 11.9 percent, a household formation profile rather than a retirement one.
US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.
Jefferson County
Is Jefferson County growing
- Population change since the 2020 census base12.83 percent
- Census 2020 base population30,891
- Births, 2024473
- Deaths, 2024223
- Natural change, 2024250
- Net domestic migration, 2024281
- Net international migration, 202469
- Total net migration, 2024350
- Cumulative net domestic migration, 2021 to 20242,733
- Rank by growth among US county-equivalents92nd
The county has grown 12.83 percent since the 2020 census base. Migration contributed more to 2024 change than births over deaths, so demand here follows people arriving rather than families forming.
US Census Bureau, Population Estimates Program, Vintage 2024, Vintage 2024, estimates 2020 to 2024.
Jefferson County
Where people moving to Jefferson County come from
- Tax returns filed by households arriving1,099
- People arriving, from those returns2,613
- Adjusted gross income arriving$77.9 m
- Net adjusted gross income movement$0
- Average income of an arriving household$70,904
- Largest single originJefferson County Non-migrants (9,812 households)
- Largest single destination (9,812 households)
| Origin | Households | People | Adjusted gross income |
|---|---|---|---|
| Jefferson County Non-migrants | 9,812 | 26,405 | $788.4 m |
| Bonneville County | 392 | 943 | $27.4 m |
| Other flows - Different State | 359 | 868 | $29.0 m |
| Other flows - West | 293 | 706 | $24.6 m |
| Madison County | 147 | 335 | $7.0 m |
| Other flows - Same State | 71 | 157 | $6.5 m |
| Other flows - South | 46 | 115 | $3.0 m |
| Bingham County | 28 | 67 | $1.5 m |
The largest single source of arrivals is Jefferson County Non-migrants, which is the catchment a retail or multifamily study should look at first.
US Internal Revenue Service, Statistics of Income county migration flows, 2021 to 2022 filing years.
Jefferson County
What the Jefferson County economy runs on
- County GDP, 2024$1.37 bn
- County GDP, 2023$1.35 bn
- GDP change, 2023 to 20241.3 percent
- GDP change over five years45.1 percent
- Rank by GDP among Idaho counties18th
- Rank by GDP among US county-equivalents1584th
- GDP per resident$41,195
Output grew 1.3 percent in the latest year and 45.1 percent over five, which is the trend line a lender will read behind any single year figure.
US Bureau of Economic Analysis, Regional, table CAGDP2, CAGDP2, through 2024.
Jefferson County
Who employs people in Jefferson County
- Covered employment, annual average9,658
- Establishments reporting1,180
- Average annual pay$46,365
- Average weekly wage$892
- Sector 62, employment2,100
- Sector 62, average annual pay$50,538
- Sector 23, employment1,250
- Sector 23, average annual pay$53,088
- Sector 31-33, employment1,132
- Sector 31-33, average annual pay$58,495
- Sector 11, employment861
- Sector 11, average annual pay$45,689
- Sector 44-45, employment687
- Sector 72, employment400
| Sector | Employment | Establishments | Average annual pay |
|---|---|---|---|
| Sector 62 | 2,100 | 121 | $50,538 |
| Sector 23 | 1,250 | 256 | $53,088 |
| Sector 31-33 | 1,132 | 50 | $58,495 |
| Sector 11 | 861 | 95 | $45,689 |
| Sector 44-45 | 687 | 67 | $35,408 |
| Sector 72 | 400 | 55 | $13,836 |
| Sector 42 | 395 | 54 | $56,639 |
| Sector 54 | 198 | 94 | $66,462 |
The largest sector is the biggest private employer group at 2,100 jobs, 21.7 percent of covered employment. Average pay per job sits below median household income, so households here typically need more than one earner.
US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages.
Jefferson County
What businesses operate in Jefferson County
- Establishments, all industries739
- Employment at those establishments5,599
- Annual payroll$230.6 m
- Establishments per 1,000 residents22.3
These are counts of establishments physically operating in the county, not listings, so they are the supply side a feasibility study measures demand against.
US Census Bureau, County Business Patterns, 2023.
Jefferson County
What is being built in Jefferson County
- Housing units authorised by permit, 2024281
- Declared construction value permitted$76.0 m
- Single family units authorised281
- Multifamily units authorised0
- Multifamily share of units0.0 percent
- Average declared value per unit$270,587
- Units authorised per 1,000 households27.6
Multifamily is 0.0 percent of units authorised, so the pipeline is predominantly for sale product.
US Census Bureau, Building Permits Survey, 2024 annual.
Jefferson County
How much SBA lending happens in Jefferson County
- 7(a) approvals recorded57
- 7(a) gross approval dollars$10.5 m
- Average 7(a) approval$184,333
- Median 7(a) approval$85,000
- 10th percentile approval$20,400
- 90th percentile approval$489,300
- Largest single approval$2,544,000
- Jobs reported supported, 7(a)356
- Jobs per approval6.2
- Distinct 7(a) lenders active11
- Distinct industries receiving approvals38
- Median 7(a) term120 months
- Share of loans on real estate terms, 240 months or longer5.3 percent
- Loans on real estate terms3
- Loans on working capital terms, 120 months or shorter54
- Franchise loans2
- Franchise share of approvals3.5 percent
- Leading industry by approval countGeneral Freight Trucking, Long-Distance, Truckload (4)
- Most active lenderZions Bank, A Division of (26)
- 504 approvals recorded31
- 504 gross approval dollars$18.5 m
- Average 504 approval$596,935
- Median 504 approval$390,000
- Distinct CDCs active4
- 504 jobs per approval8.1
- 504 jobs per million dollars approved13.6
- Most active CDCEast-Central Idaho Development Company (21)
- 7(a) share of SBA approvals64.8 percent
- Combined SBA approval dollars$29.0 m
The average approval of $184,333 sits well above the median of $85,000, so a small number of large deals is pulling the mean up. The median is the better guide to what a typical borrower here actually gets. Only 5.3 percent of approvals run on real estate terms, so SBA credit here is mostly working capital and equipment rather than property acquisition.
US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30. US Small Business Administration, 504 FOIA release, FY2010 to FY2026 year to date, as of 2026-06-30.
Jefferson County
Do SBA loans in Jefferson County get paid back
- Loans with a final outcome recorded7
- Paid in full7
- Charged off0
- Status: Paid in full7
- Status: Exempt from disclosure43
- Status: Cancelled5
- Status: Committed, not yet disbursed2
Too few loans have reached a final outcome to publish a charge off rate. only 7 resolved loans, too few to publish a rate. A rate computed on a handful of loans is noise, so none is shown.
US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30.
Jefferson County
Which parts of Jefferson County get the lending
- Places in the county with recorded lending6
- RIGBY, approvals43
- ROBERTS, approvals8
- Menan, approvals3
- HAMER, approvals1
- TERRETON, approvals1
- RIGBY, ID, approvals1
| Place | Approvals | Gross approval dollars |
|---|---|---|
| RIGBY | 43 | $8,154,100 |
| ROBERTS | 8 | $708,800 |
| Menan | 3 | $700,600 |
| HAMER | 1 | $673,000 |
| TERRETON | 1 | $220,500 |
| RIGBY, ID | 1 | $50,000 |
RIGBY accounts for 43 approvals against 8 in ROBERTS. County level figures average over that gap, which is why a site decision is made at the submarket rather than the county.
US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30.
Jefferson County
How big is Jefferson County
- Land area1,094 sq mi
- Rank by land area among Idaho counties28th of 44
- Width, east to west53.4 mi
- Height, north to south30.1 mi
- Geographies sharing a boundary6
- Residents per square mile of land30
- Establishments per square mile0.68
US Census Bureau county boundary geometry, TIGER, adjacency computed from shared boundary vertices, TIGER county boundaries. US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year. US Census Bureau, County Business Patterns, 2023.
Coverage
What this page does not hold.
Every item below could be filled with a plausible figure. None of them is. On a page a lender may read, a number that cannot be traced is worse than an absence, so the absences are named.
- No NFIP communities are listed for this county in the FEMA Community Status Book.
- Flood zone record counts are not held. The flood coverage export has not landed, so no count is shown rather than an estimated one.
- Traffic counts resolve in the platform, not in this dataset, so no AADT figure is printed here.
- Zoning is in build. Parcel level zoning is not published on this page.
Feasibility studies
When a Jefferson County site needs a document a lender will accept.
The same data layer behind this page is the one the studies are written from. A study for a Jefferson County site starts with the figures you are reading, carrying the same source and period into the credit file.
- Population33,154
- Households10,199
- Average household size3.25
- Median household income$86,679
- Median age32.8
Common questions
Jefferson County questions, answered from the record.
How many people live in Jefferson County, Idaho?
33,154, in 10,199 households, ranking 12th of 44 Idaho counties. Source: US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.
Is Jefferson County growing?
The population has grown 12.83 percent since the 2020 census base. In 2024 there were 473 births against 223 deaths, with net migration of 350. Source: US Census Bureau, Population Estimates Program, Vintage 2024, Vintage 2024, estimates 2020 to 2024.
What is the median household income in Jefferson County?
$86,679. The median owner-occupied home is valued at $408,400, which is 4.7 times income, and median gross rent is $1,138 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.
How many businesses are there in Jefferson County?
739 establishments, employing 5,599 people with an annual payroll of $230.6 m. These are establishments physically operating in the county, not listings. Source: US Census Bureau, County Business Patterns, 2023.
What is the average wage in Jefferson County?
Average annual pay is $46,365, or $892 a week, across 9,658 covered jobs. Source: US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages.
How much SBA lending happens in Jefferson County?
57 7(a) approvals totalling $10.5 m since FY2020, across 11 lenders, with a median approval of $85,000, plus 31 504 approvals worth $18.5 m. These are approvals recorded in the release, not loans disbursed.
What is being built in Jefferson County?
281 housing units were authorised by permit in 2024, with a declared construction value of $76.0 m. Multifamily was 0.0 percent of units. Source: US Census Bureau, Building Permits Survey, 2024 annual.
What is the radon zone for Jefferson County?
Zone 2, a predicted average indoor radon screening level from 2 to 4 pCi/L. Source: US EPA, Map of Radon Zones, county spreadsheet, 2024-05 publication, EPA 402/A-16/001.
Where do people moving to Jefferson County come from?
The largest single origin is Jefferson County Non-migrants, with 9,812 households. Arriving households report an average income of $70,904 against null for those leaving. Source: US Internal Revenue Service, Statistics of Income county migration flows, 2021 to 2022 filing years.
Are traffic counts available for Jefferson County on this page?
No. Annual average daily traffic resolves in the platform rather than in this dataset, so no AADT figure is printed here. It is a gap we know about rather than a figure we estimated.
Is zoning published for Jefferson County?
Not yet. The zoning layer is in build. Nothing on this page presents parcel level zoning, and where a statutory framework applies it is marked as the statewide frame with confirm locally attached.