Lewis County, Idaho: commercial real estate data.
Lewis County, Idaho has a population of 3,682 across 479 square miles, up 5.8 percent since the 2020 census base. County output reached $223.1 m in 2024, 109 establishments operate here, and the SBA record carries 4 7(a) approvals worth $889,700.
113 sourced county values · tier FULL · 10 sections
Lewis County
How many people live in Lewis County
- Population3,682
- Households1,574
- Average household size2.34
- Median household income$51,615
- Median age49.0
- Median gross rent$737 per month
- Median owner-occupied home value$225,300
- Home value to household income4.4 times
- Annual rent as a share of median income17.1 percent
- Adults 25 and over with a bachelor degree or higher21.3 percent
- Adults 25 and over with a graduate degree7.3 percent
- Adults 25 and over2,689
- Population under 18808
- Share under 1821.9 percent
- Population 65 and over1,043
- Share 65 and over28.3 percent
- Working age population, 18 to 641,831
- Civilian labor force1,404
- Unemployment rate2.4 percent
- Labor force participation, adults 18 and over48.9 percent
- Rank by population among Idaho counties41st of 44
- Rank by population among US county-equivalents2987th
Lewis County is the 41st largest of 44 Idaho counties by population. A median home costs 4.4 times median household income, which is an affordable ownership market by national standards. Residents 65 and over outnumber those under 18, at 28.3 percent against 21.9 percent, which points demand at health care, services and single storey product rather than schools.
US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.
Lewis County
Is Lewis County growing
- Population change since the 2020 census base5.82 percent
- Census 2020 base population3,523
- Births, 202437
- Deaths, 202449
- Natural change, 2024-12
- Net domestic migration, 20241
- Net international migration, 20240
- Total net migration, 20241
- Cumulative net domestic migration, 2021 to 2024301
- Rank by growth among US county-equivalents433rd
The county has grown 5.82 percent since the 2020 census base. Deaths exceeded births in 2024, so all of the growth came from people moving in. A market held up by migration alone is more sensitive to a change in relative cost than one growing from household formation.
US Census Bureau, Population Estimates Program, Vintage 2024, Vintage 2024, estimates 2020 to 2024.
Lewis County
Where people moving to Lewis County come from
- Tax returns filed by households arriving177
- People arriving, from those returns397
- Adjusted gross income arriving$14.3 m
- Net adjusted gross income movement$0
- Average income of an arriving household$80,853
- Largest single originLewis County Non-migrants (1,441 households)
- Largest single destination (1,441 households)
| Origin | Households | People | Adjusted gross income |
|---|---|---|---|
| Lewis County Non-migrants | 1,441 | 3,025 | $86.2 m |
| Other flows - Different State | 88 | 199 | $9.7 m |
| Other flows - West | 88 | 199 | $9.7 m |
| Other flows - Same State | 37 | 97 | $2.2 m |
| Idaho County | 31 | 70 | $1.3 m |
| Nez Perce County | 21 | 31 | $1.1 m |
The largest single source of arrivals is Lewis 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.
Lewis County
What the Lewis County economy runs on
- County GDP, 2024$223.1 m
- County GDP, 2023$230.2 m
- GDP change, 2023 to 2024-3.1 percent
- GDP change over five years35.6 percent
- Rank by GDP among Idaho counties40th
- Rank by GDP among US county-equivalents2859th
- GDP per resident$60,594
Output grew -3.1 percent in the latest year and 35.6 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.
Lewis County
Who employs people in Lewis County
- Covered employment, annual average1,567
- Establishments reporting234
- Average annual pay$43,504
- Average weekly wage$837
- Sector 44-45, employment202
- Sector 44-45, average annual pay$33,605
- Sector 62, employment194
- Sector 62, average annual pay$30,657
- Sector 31-33, employment157
- Sector 31-33, average annual pay$50,117
- Sector 42, employment74
- Sector 42, average annual pay$63,857
- Sector 48-49, employment53
- Sector 23, employment48
| Sector | Employment | Establishments | Average annual pay |
|---|---|---|---|
| Sector 44-45 | 202 | 16 | $33,605 |
| Sector 62 | 194 | 21 | $30,657 |
| Sector 31-33 | 157 | 6 | $50,117 |
| Sector 42 | 74 | 15 | $63,857 |
| Sector 48-49 | 53 | 11 | $31,480 |
| Sector 23 | 48 | 29 | $47,279 |
| Sector 56 | 33 | 10 | $35,481 |
| Sector 54 | 29 | 15 | $84,914 |
The largest sector is the biggest private employer group at 202 jobs, 12.9 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.
Lewis County
What businesses operate in Lewis County
- Establishments, all industries109
- Employment at those establishments933
- Annual payroll$38.3 m
- Establishments per 1,000 residents29.6
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.
Lewis County
What is being built in Lewis County
- Housing units authorised by permit, 202428
- Declared construction value permitted$2.8 m
- Single family units authorised28
- Multifamily units authorised0
- Multifamily share of units0.0 percent
- Average declared value per unit$101,115
- Units authorised per 1,000 households17.8
Multifamily is 0.0 percent of units authorised, so the pipeline is predominantly for sale product.
US Census Bureau, Building Permits Survey, 2024 annual.
Lewis County
How much SBA lending happens in Lewis County
- 7(a) approvals recorded4
- 7(a) gross approval dollars$889,700
- Average 7(a) approval$222,425
- Median 7(a) approval$350,000
- 10th percentile approval$15,000
- 90th percentile approval$449,700
- Largest single approval$449,700
- Jobs reported supported, 7(a)28
- Jobs per approval7.0
- Distinct 7(a) lenders active3
- Distinct industries receiving approvals3
- Median 7(a) term120 months
- Share of loans on real estate terms, 240 months or longer0.0 percent
- Loans on real estate terms0
- Loans on working capital terms, 120 months or shorter3
- Franchise loans0
- Franchise share of approvals0.0 percent
- Leading industry by approval countCommercial and Institutional Building Construction (2)
- Most active lenderGlacier Bank (2)
- 504 approvals recorded2
- 504 gross approval dollars$285,000
- Average 504 approval$142,500
- Median 504 approval$147,000
- Distinct CDCs active2
- 504 jobs per approval7.5
- 504 jobs per million dollars approved52.6
- Most active CDCEvergreen Business Capital (1)
- 7(a) share of SBA approvals66.7 percent
- Combined SBA approval dollars$1.2 m
The average approval of $222,425 sits close to the median of $350,000, so lending here is fairly evenly sized rather than driven by a few large deals. Only 0.0 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.
Lewis County
Do SBA loans in Lewis County get paid back
- Loans with a final outcome recorded2
- Paid in full1
- Charged off1
- Status: Paid in full1
- Status: Charged off1
- Status: Exempt from disclosure2
Too few loans have reached a final outcome to publish a charge off rate. only 2 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.
Lewis County
How big is Lewis County
- Land area479 sq mi
- Rank by land area among Idaho counties41st of 44
- Width, east to west33.5 mi
- Height, north to south32.5 mi
- Geographies sharing a boundary3
- Residents per square mile of land8
- Establishments per square mile0.23
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 Lewis 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 Lewis County site starts with the figures you are reading, carrying the same source and period into the credit file.
- Population3,682
- Households1,574
- Average household size2.34
- Median household income$51,615
- Median age49.0
Common questions
Lewis County questions, answered from the record.
How many people live in Lewis County, Idaho?
3,682, in 1,574 households, ranking 41st of 44 Idaho counties. Source: US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.
Is Lewis County growing?
The population has grown 5.82 percent since the 2020 census base. In 2024 there were 37 births against 49 deaths, with net migration of 1. Source: US Census Bureau, Population Estimates Program, Vintage 2024, Vintage 2024, estimates 2020 to 2024.
What is the median household income in Lewis County?
$51,615. The median owner-occupied home is valued at $225,300, which is 4.4 times income, and median gross rent is $737 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.
How many businesses are there in Lewis County?
109 establishments, employing 933 people with an annual payroll of $38.3 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 Lewis County?
Average annual pay is $43,504, or $837 a week, across 1,567 covered jobs. Source: US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages.
How much SBA lending happens in Lewis County?
4 7(a) approvals totalling $889,700 since FY2020, across 3 lenders, with a median approval of $350,000, plus 2 504 approvals worth $285,000. These are approvals recorded in the release, not loans disbursed.
What is being built in Lewis County?
28 housing units were authorised by permit in 2024, with a declared construction value of $2.8 m. Multifamily was 0.0 percent of units. Source: US Census Bureau, Building Permits Survey, 2024 annual.
What is the radon zone for Lewis County?
Zone 3, a predicted average indoor radon screening level less than 2 pCi/L. Source: US EPA, Map of Radon Zones, county spreadsheet, 2024-05 publication, EPA 402/A-16/001.
Where do people moving to Lewis County come from?
The largest single origin is Lewis County Non-migrants, with 1,441 households. Arriving households report an average income of $80,853 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 Lewis 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 Lewis 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.