Knox County, Maine: commercial real estate data.
Knox County, Maine has a population of 41,003 across 365 square miles, up 0.9 percent since the 2020 census base. County output reached $2.63 bn in 2024, 1,823 establishments operate here, and the SBA record carries 71 7(a) approvals worth $28.1 m.
123 sourced county values · tier FULL · 11 sections
Knox County
How many people live in Knox County
- Population41,003
- Households18,484
- Average household size2.22
- Median household income$74,096
- Median age49.5
- Median gross rent$1,165 per month
- Median owner-occupied home value$324,900
- Home value to household income4.4 times
- Annual rent as a share of median income18.9 percent
- Adults 25 and over with a bachelor degree or higher39.7 percent
- Adults 25 and over with a graduate degree15.3 percent
- Adults 25 and over31,595
- Population under 186,902
- Share under 1816.8 percent
- Population 65 and over11,459
- Share 65 and over27.9 percent
- Working age population, 18 to 6422,642
- Civilian labor force20,387
- Unemployment rate3.9 percent
- Labor force participation, adults 18 and over59.8 percent
- Rank by population among Maine counties10th of 16
- Rank by population among US county-equivalents1186th
Knox County is the 10th largest of 16 Maine 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 27.9 percent against 16.8 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.
Knox County
Is Knox County growing
- Population change since the 2020 census base0.91 percent
- Census 2020 base population40,611
- Births, 2024276
- Deaths, 2024534
- Natural change, 2024-258
- Net domestic migration, 2024164
- Net international migration, 202433
- Total net migration, 2024197
- Cumulative net domestic migration, 2021 to 20241,218
- Rank by growth among US county-equivalents1512th
The county has grown 0.91 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.
Knox County
Where people moving to Knox County come from
- Tax returns filed by households arriving1,120
- People arriving, from those returns1,794
- Adjusted gross income arriving$96.5 m
- Net adjusted gross income movement$0
- Average income of an arriving household$86,153
- Largest single originKnox County Non-migrants (17,228 households)
- Largest single destination (17,228 households)
| Origin | Households | People | Adjusted gross income |
|---|---|---|---|
| Knox County Non-migrants | 17,228 | 31,282 | $1.44 bn |
| Other flows - Different State | 664 | 1,068 | $67.3 m |
| Other flows - Northeast | 284 | 425 | $28.3 m |
| Other flows - South | 185 | 307 | $18.8 m |
| Other flows - West | 145 | 253 | $15.8 m |
| Lincoln County | 89 | 171 | $4.1 m |
| Other flows - Same State | 84 | 135 | $3.4 m |
| Cumberland County | 79 | 111 | $7.3 m |
The largest single source of arrivals is Knox 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.
Knox County
What the Knox County economy runs on
- County GDP, 2024$2.63 bn
- County GDP, 2023$2.54 bn
- GDP change, 2023 to 20243.8 percent
- GDP change over five years31.9 percent
- Rank by GDP among Maine counties9th
- Rank by GDP among US county-equivalents1076th
- GDP per resident$64,206
Output grew 3.8 percent in the latest year and 31.9 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.
Knox County
Who employs people in Knox County
- Covered employment, annual average16,874
- Establishments reporting2,289
- Average annual pay$55,720
- Average weekly wage$1,072
- Sector 44-45, employment2,820
- Sector 44-45, average annual pay$39,043
- Sector 62, employment2,529
- Sector 62, average annual pay$70,584
- Sector 72, employment1,883
- Sector 72, average annual pay$32,897
- Sector 31-33, employment1,464
- Sector 31-33, average annual pay$61,185
- Sector 81, employment692
- Sector 56, employment568
| Sector | Employment | Establishments | Average annual pay |
|---|---|---|---|
| Sector 44-45 | 2,820 | 234 | $39,043 |
| Sector 62 | 2,529 | 170 | $70,584 |
| Sector 72 | 1,883 | 172 | $32,897 |
| Sector 31-33 | 1,464 | 92 | $61,185 |
| Sector 81 | 692 | 159 | $44,477 |
| Sector 56 | 568 | 114 | $50,075 |
| Sector 54 | 553 | 331 | $89,706 |
| Sector 71 | 433 | 50 | $53,233 |
The largest sector is the biggest private employer group at 2,820 jobs, 16.7 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.
Knox County
What businesses operate in Knox County
- Establishments, all industries1,823
- Employment at those establishments14,502
- Annual payroll$763.5 m
- Establishments per 1,000 residents44.5
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.
Knox County
What is being built in Knox County
- Housing units authorised by permit, 2024166
- Declared construction value permitted$43.2 m
- Single family units authorised106
- Multifamily units authorised60
- Multifamily share of units36.1 percent
- Average declared value per unit$260,367
- Units authorised per 1,000 households9.0
Multifamily is 36.1 percent of units authorised, so the pipeline is predominantly for sale product.
US Census Bureau, Building Permits Survey, 2024 annual.
Knox County
How much SBA lending happens in Knox County
- 7(a) approvals recorded71
- 7(a) gross approval dollars$28.1 m
- Average 7(a) approval$395,754
- Median 7(a) approval$120,000
- 10th percentile approval$20,000
- 90th percentile approval$800,000
- Largest single approval$5,000,000
- Jobs reported supported, 7(a)533
- Jobs per approval7.5
- Distinct 7(a) lenders active21
- Distinct industries receiving approvals41
- Median 7(a) term120 months
- Share of loans on real estate terms, 240 months or longer14.1 percent
- Loans on real estate terms10
- Loans on working capital terms, 120 months or shorter58
- Franchise loans2
- Franchise share of approvals2.8 percent
- Leading industry by approval countFull-Service Restaurants (6)
- Most active lenderTD Bank, National Association (17)
- 504 approvals recorded27
- 504 gross approval dollars$16.3 m
- Average 504 approval$602,963
- Median 504 approval$257,000
- Distinct CDCs active4
- 504 jobs per approval4.7
- 504 jobs per million dollars approved7.9
- Most active CDCGranite State Economic Development Corporation (17)
- 7(a) share of SBA approvals72.4 percent
- Combined SBA approval dollars$44.4 m
The average approval of $395,754 sits well above the median of $120,000, 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 14.1 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.
Knox County
Do SBA loans in Knox County get paid back
- Loans with a final outcome recorded11
- Paid in full10
- Charged off1
- Charge off rate on resolved loans9.1 percent
- Status: Paid in full10
- Status: Charged off1
- Status: Cancelled8
- Status: Exempt from disclosure50
- Status: Committed, not yet disbursed2
Of the 11 loans that have reached a final outcome, 9.1 percent were charged off. This is computed only over resolved loans, because a loan still running has not yet succeeded or failed and counting it either way would be wrong.
US Small Business Administration, 7(a) FOIA release, FY2020 to FY2026 year to date, as of 2026-06-30.
Knox County
Which parts of Knox County get the lending
- Places in the county with recorded lending14
- Camden, approvals16
- ROCKPORT, approvals15
- Rockland, approvals14
- WARREN, approvals8
- UNION, approvals3
- South Thomaston, approvals3
| Place | Approvals | Gross approval dollars |
|---|---|---|
| Camden | 16 | $8,345,500 |
| ROCKPORT | 15 | $6,194,000 |
| Rockland | 14 | $9,740,300 |
| WARREN | 8 | $710,000 |
| UNION | 3 | $329,200 |
| South Thomaston | 3 | $450,000 |
| APPLETON | 3 | $342,500 |
| FRIENDSHIP | 2 | $43,000 |
Camden accounts for 16 approvals against 15 in ROCKPORT. 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.
Knox County
How big is Knox County
- Land area365 sq mi
- Rank by land area among Maine counties15th of 16
- Width, east to west46.9 mi
- Height, north to south37.5 mi
- Geographies sharing a boundary3
- Residents per square mile of land112
- Establishments per square mile4.99
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 Knox 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 Knox County site starts with the figures you are reading, carrying the same source and period into the credit file.
- Population41,003
- Households18,484
- Average household size2.22
- Median household income$74,096
- Median age49.5
Common questions
Knox County questions, answered from the record.
How many people live in Knox County, Maine?
41,003, in 18,484 households, ranking 10th of 16 Maine counties. Source: US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.
Is Knox County growing?
The population has grown 0.91 percent since the 2020 census base. In 2024 there were 276 births against 534 deaths, with net migration of 197. Source: US Census Bureau, Population Estimates Program, Vintage 2024, Vintage 2024, estimates 2020 to 2024.
What is the median household income in Knox County?
$74,096. The median owner-occupied home is valued at $324,900, which is 4.4 times income, and median gross rent is $1,165 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.
How many businesses are there in Knox County?
1,823 establishments, employing 14,502 people with an annual payroll of $763.5 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 Knox County?
Average annual pay is $55,720, or $1,072 a week, across 16,874 covered jobs. Source: US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages.
How much SBA lending happens in Knox County?
71 7(a) approvals totalling $28.1 m since FY2020, across 21 lenders, with a median approval of $120,000, plus 27 504 approvals worth $16.3 m. These are approvals recorded in the release, not loans disbursed.
Do SBA loans in Knox County get paid back?
Of the 11 loans that have reached a final outcome, 10 were paid in full and 1 charged off, a charge off rate of 9.1 percent. Loans still running are excluded, because they have not yet succeeded or failed.
What is being built in Knox County?
166 housing units were authorised by permit in 2024, with a declared construction value of $43.2 m. Multifamily was 36.1 percent of units. Source: US Census Bureau, Building Permits Survey, 2024 annual.
What is the radon zone for Knox 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 Knox County come from?
The largest single origin is Knox County Non-migrants, with 17,228 households. Arriving households report an average income of $86,153 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 Knox 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 Knox 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.