Lewis County, Idaho: commercial real estate data.
Lewis County, Idaho had an estimated 3,728 residents on July 1, 2024, up 5.8 percent since the 2020 census base of 3,523, across 479 square miles. County output reached $223.1 m in 2024, 109 establishments operate here, and the SBA record carries 4 7(a) approvals worth $889,700 since FY2020.
Underlined figures are computed by MMCG Analytics, not published by the agency.
Lewis County
How many people live in Lewis County
- Population, American Community Survey 2020-20243,682
- 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-equivalents, Puerto Rico included2987th of 3,222
Lewis County is the 41st largest of 44 Idaho counties by population. A median home costs 4.4 times median household income, which is seriously unaffordable 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 story product rather than schools.
US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.
Lewis County
Is Lewis County's population growing?
- Population, July 1, 20243,728
- Census 2020 base population3,523
- Population change since the 2020 census base5.82 percent
- Population change, 2023 to 2024-12
- 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 of 3,144
The county has grown 5.82 percent since the 2020 census base. Deaths exceeded births in 2024 by more than net migration added, so the population fell even though more people moved in than left.
US Census Bureau, Population Estimates Program, Vintage 2024, Vintage 2024, estimates 2020 to 2024.
Lewis County
Where are people moving to Lewis County from?
- Tax returns filed by households arriving177
- People arriving, from those returns397
- Tax returns filed by households leaving141
- Net household movement36
- Adjusted gross income arriving$14.3 m
- Net adjusted gross income movement$8.7 m
- Average income of an arriving household$80,853
- Average income of a leaving household$40,035
- Largest single originIdaho County (31 households)
- Largest single destinationIdaho County (45 households)
| Origin | Households | People | Adjusted gross income |
|---|---|---|---|
| Idaho County | 31 | 70 | $1.3 m |
| Nez Perce County | 21 | 31 | $1.1 m |
Households arriving report $40,818 more average income than households leaving, so the migration is raising local spending power rather than just moving it around. The largest single source of arrivals is Idaho County, 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 is the Lewis County economy?
- 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 the Idaho areas BEA publishes40th of 44
- Rank by GDP among the US county areas BEA publishes2859th of 3,127
- 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
Employment by industry in Lewis County
- Covered employment, annual average1,567
- Establishments reporting234
- Average annual pay$43,504
- Average weekly wage$837
- Retail trade, employment202
- Retail trade, average annual pay$33,605
- Health care and social assistance, employment194
- Health care and social assistance, average annual pay$30,657
- Manufacturing, employment157
- Manufacturing, average annual pay$50,117
- Wholesale trade, employment74
- Wholesale trade, average annual pay$63,857
- Transportation and warehousing, employment53
- Construction, employment48
| Sector | Employment | Establishments | Average annual pay |
|---|---|---|---|
| Retail trade | 202 | 16 | $33,605 |
| Health care and social assistance | 194 | 21 | $30,657 |
| Manufacturing | 157 | 6 | $50,117 |
| Wholesale trade | 74 | 15 | $63,857 |
| Transportation and warehousing | 53 | 11 | $31,480 |
| Construction | 48 | 29 | $47,279 |
| Administrative and support and waste management services | 33 | 10 | $35,481 |
| Professional, scientific and technical services | 29 | 15 | $84,914 |
Retail trade is the largest private sector at 202 jobs, 12.9 percent of covered employment.
US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages.
Lewis County
How many businesses are 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. County Business Patterns counts private establishments with paid employees in March 2023, while the Quarterly Census of Employment and Wages above counts every unemployment-insured employer, public ones included, as a 2024 annual average, so the two establishment and employment counts differ.
US Census Bureau, County Business Patterns, 2023.
Lewis County
Building permits in Lewis County
- Housing units authorized by permit, 202428
- Declared construction value permitted$2.8 m
- Single family units authorized28
- Multifamily units authorized0
- Multifamily share of units0.0 percent
- Average declared value per unit$101,115
- Units authorized per 1,000 households17.8
Single-family homes are 100.0 percent of units authorized, so the pipeline is predominantly single-family.
US Census Bureau, Building Permits Survey, 2024 annual.
Lewis County
SBA loans in Lewis County (7(a) and 504)
- 7(a) approvals recorded4
- 7(a) gross approval dollars$889,700
- Average 7(a) approval$222,425
- Median 7(a) approval$212,500
- 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
- 504 approvals recorded2
- 504 gross approval dollars$285,000
- Average 504 approval$142,500
- Median 504 approval$142,500
- Distinct CDCs active2
- 504 jobs per approval7.5
- 504 jobs per million dollars approved52.6
- Combined SBA approval dollars, 7(a) FY2020 to FY2026 and 504 FY2010 to FY2026$1.2 m
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
SBA loan default and charge-off rates in 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
Only 2 loans have reached a final outcome, fewer than the 30 a charge-off rate needs, so no rate is published.
Compare against the national and state SBA charge-off rates, computed the same way over resolved loans only.
US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30.
Lewis County
How large 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.
Lewis County
Flood risk in Lewis County
- Participation of the county's own NFIP community Lewis County, unincorporated areasParticipating, community 160215
- Communities in the county in the NFIP Community Status Book4
- Of those, participating in the NFIP4
- NFIP participation rate100.0 percent
- Communities carrying a CRS class0
- Radon levels in Lewis County, EPA zone predicted average indoor radon screening level less than 2 pCi/LZone 3
The county's own community in the status book, unincorporated Lewis County (community 160215), participates in the National Flood Insurance Program and carries no Community Rating System class, so no CRS premium discount applies there. The EPA places Lewis County in radon zone 3, a predicted average indoor radon screening level less than 2 pCi/L. The zone is a screening prediction for the county and does not substitute for a test at an address. 100.0 percent of the county's listed communities participate in the National Flood Insurance Program, per Federal Emergency Management Agency, NFIP Community Status Book (OpenFEMA), as of 2026-09-26.
Federal Emergency Management Agency, NFIP Community Status Book (OpenFEMA), as of 2026-09-26. US EPA, Map of Radon Zones, county spreadsheet, 2024-05 publication, EPA 402/A-16/001.
Coverage
What this page does not hold.
Traffic counts, zoning and the flood zone at an address are not on this page; they resolve at the address in the platform. How this page was built →
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.
- Population, American Community Survey 2020-20243,682
- 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?
The Census Bureau estimates 3,728 residents on July 1, 2024 (US Census Bureau, Population Estimates Program, Vintage 2024). The American Community Survey 2020-2024 five-year estimate is 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's population growing?
The population has grown 5.82 percent since the 2020 census base of 3,523, to 3,728 on July 1, 2024. 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 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 employment by industry in Lewis County?
Retail trade is the largest private sector at 202 jobs, 12.9 percent of covered employment. Covered employment averages 1,567 jobs at an average annual pay of $43,504, or $837 a week. 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 totaling $889,700 since FY2020, across 3 lenders, with a median approval of $212,500, plus 2 504 approvals worth $285,000 since FY2010. These are approvals recorded in the release, not loans disbursed.
How many building permits were issued in Lewis County?
28 housing units were authorized 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 Idaho County, with 31 households. Arriving households report an average income of $80,853 against $40,035 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?
No. Nothing on this page presents parcel level zoning, and where a statutory framework applies it is marked as the statewide frame, to be confirmed locally.
Lewis County
Cities and places in Lewis.
5 Census places lie wholly or partly in Lewis County. All 5 carry enough published place level data for a page of their own and are linked.
| Place | Type | Population | SBA 7(a) approvals, projects in this county | Lies in |
|---|---|---|---|---|
| Kamiah | city | 1,084 | 4 | 96.3 percent here, 3.7 percent Idaho County |
| Nezperce | city | 522 | None recorded | Wholly in this county |
| Craigmont | city | 509 | None recorded | Wholly in this county |
| Winchester | city | 302 | None recorded | Wholly in this county |
| Reubens | city | 68 | None recorded | Wholly in this county |
Nearby