HomeCaliforniaMarin County
Marin County, California: commercial real estate data.
Marin County, California has a population of 257,969 across 520 square miles, down 2.3 percent since the 2020 census base. County output reached $36.85 bn in 2024, 10,049 establishments operate here, and the SBA record carries 301 7(a) approvals worth $154.9 m.
129 sourced county values · tier FULL · 12 sections
Marin County
How many people live in Marin County
- Population257,969
- Households103,018
- Average household size2.50
- Median household income$149,091
- Median age47.4
- Median gross rent$2,668 per month
- Median owner-occupied home value$1,507,300
- Home value to household income10.1 times
- Annual rent as a share of median income21.5 percent
- Adults 25 and over with a bachelor degree or higher61.1 percent
- Adults 25 and over with a graduate degree27.6 percent
- Adults 25 and over189,753
- Population under 1849,986
- Share under 1819.4 percent
- Population 65 and over61,345
- Share 65 and over23.8 percent
- Working age population, 18 to 64146,638
- Civilian labor force133,674
- Unemployment rate6.1 percent
- Labor force participation, adults 18 and over64.3 percent
- Rank by population among California counties26th of 58
- Rank by population among US county-equivalents279th
Marin County is the 26th largest of 58 California counties by population. A median home costs 10.1 times median household income, which is a stretched ownership market and usually shows up as rental demand. Residents 65 and over outnumber those under 18, at 23.8 percent against 19.4 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.
Marin County
Is Marin County growing
- Population change since the 2020 census base-2.26 percent
- Census 2020 base population262,325
- Births, 20242,097
- Deaths, 20242,170
- Natural change, 2024-73
- Net domestic migration, 2024-1,505
- Net international migration, 20242,263
- Total net migration, 2024758
- Cumulative net domestic migration, 2021 to 2024-11,301
- Rank by growth among US county-equivalents2561st
The county has lost 2.26 percent of its population 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.
Marin County
Where people moving to Marin County come from
- Tax returns filed by households arriving6,278
- People arriving, from those returns9,990
- Adjusted gross income arriving$1.94 bn
- Net adjusted gross income movement$0
- Average income of an arriving household$309,655
- Largest single originMarin County Non-migrants (103,539 households)
- Largest single destination (103,539 households)
| Origin | Households | People | Adjusted gross income |
|---|---|---|---|
| Marin County Non-migrants | 103,539 | 200,885 | $32.88 bn |
| San Francisco County | 1,611 | 2,754 | $778.0 m |
| Other flows - Different State | 981 | 1,612 | $188.4 m |
| Sonoma County | 583 | 862 | $58.2 m |
| Alameda County | 462 | 710 | $94.8 m |
| Contra Costa County | 336 | 542 | $82.5 m |
| Other flows - South | 310 | 494 | $49.1 m |
| Los Angeles County | 296 | 453 | $101.2 m |
The largest single source of arrivals is Marin 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.
Marin County
What the Marin County economy runs on
- County GDP, 2024$36.85 bn
- County GDP, 2023$35.48 bn
- GDP change, 2023 to 20243.9 percent
- GDP change over five years18.8 percent
- Rank by GDP among California counties20th
- Rank by GDP among US county-equivalents165th
- GDP per resident$142,861
Output grew 3.9 percent in the latest year and 18.8 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.
Marin County
Who employs people in Marin County
- Covered employment, annual average110,934
- Establishments reporting12,900
- Average annual pay$93,552
- Average weekly wage$1,799
- Sector 62, employment17,484
- Sector 62, average annual pay$83,330
- Sector 44-45, employment13,209
- Sector 44-45, average annual pay$56,176
- Sector 72, employment11,417
- Sector 72, average annual pay$38,227
- Sector 54, employment8,316
- Sector 54, average annual pay$148,183
- Sector 23, employment7,453
- Sector 56, employment6,272
| Sector | Employment | Establishments | Average annual pay |
|---|---|---|---|
| Sector 62 | 17,484 | 3,064 | $83,330 |
| Sector 44-45 | 13,209 | 865 | $56,176 |
| Sector 72 | 11,417 | 652 | $38,227 |
| Sector 54 | 8,316 | 2,013 | $148,183 |
| Sector 23 | 7,453 | 1,073 | $93,101 |
| Sector 56 | 6,272 | 563 | $73,926 |
| Sector 81 | 6,235 | 1,437 | $60,333 |
| Sector 31-33 | 4,081 | 226 | $181,770 |
The largest sector is the biggest private employer group at 17,484 jobs, 15.8 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.
Marin County
What businesses operate in Marin County
- Establishments, all industries10,049
- Employment at those establishments106,249
- Annual payroll$9.22 bn
- Establishments per 1,000 residents39.0
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.
Marin County
What is being built in Marin County
- Housing units authorised by permit, 2024158
- Declared construction value permitted$77.5 m
- Single family units authorised151
- Multifamily units authorised7
- Multifamily share of units4.4 percent
- Average declared value per unit$490,275
- Units authorised per 1,000 households1.5
Multifamily is 4.4 percent of units authorised, so the pipeline is predominantly for sale product.
US Census Bureau, Building Permits Survey, 2024 annual.
Marin County
How much SBA lending happens in Marin County
- 7(a) approvals recorded301
- 7(a) gross approval dollars$154.9 m
- Average 7(a) approval$514,596
- Median 7(a) approval$210,000
- 10th percentile approval$38,000
- 90th percentile approval$1,318,500
- Largest single approval$5,000,000
- Jobs reported supported, 7(a)3,124
- Jobs per approval10.4
- Distinct 7(a) lenders active67
- Distinct industries receiving approvals130
- Median 7(a) term120 months
- Share of loans on real estate terms, 240 months or longer9.0 percent
- Loans on real estate terms27
- Loans on working capital terms, 120 months or shorter269
- Franchise loans18
- Franchise share of approvals6.0 percent
- Leading industry by approval countFull-Service Restaurants (20)
- Most active lenderWells Fargo Bank National Association (25)
- 504 approvals recorded191
- 504 gross approval dollars$158.7 m
- Average 504 approval$830,827
- Median 504 approval$655,000
- Distinct CDCs active9
- 504 jobs per approval8.0
- 504 jobs per million dollars approved9.6
- Most active CDCMortgage Capital Development Corporation (99)
- 7(a) share of SBA approvals61.2 percent
- Combined SBA approval dollars$313.6 m
The average approval of $514,596 sits well above the median of $210,000, 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 9.0 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.
Marin County
Do SBA loans in Marin County get paid back
- Loans with a final outcome recorded51
- Paid in full47
- Charged off4
- Charge off rate on resolved loans7.8 percent
- Status: Exempt from disclosure191
- Status: Paid in full47
- Status: Charged off4
- Status: Cancelled40
- Status: Committed, not yet disbursed19
Of the 51 loans that have reached a final outcome, 7.8 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.
Marin County
Which parts of Marin County get the lending
- Places in the county with recorded lending22
- SAN RAFAEL, approvals93
- Novato, approvals59
- Mill Valley, approvals36
- CORTE MADERA, approvals19
- San Anselmo, approvals18
- SAUSALITO, approvals16
| Place | Approvals | Gross approval dollars |
|---|---|---|
| SAN RAFAEL | 93 | $51,735,500 |
| Novato | 59 | $25,557,900 |
| Mill Valley | 36 | $12,984,800 |
| CORTE MADERA | 19 | $18,211,500 |
| San Anselmo | 18 | $7,519,900 |
| SAUSALITO | 16 | $9,359,800 |
| Fairfax | 12 | $5,722,900 |
| BELVEDERE TIBURON | 8 | $6,250,000 |
SAN RAFAEL accounts for 93 approvals against 59 in Novato. 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.
Marin County
How big is Marin County
- Land area520 sq mi
- Rank by land area among California counties55th of 58
- Width, east to west31.9 mi
- Height, north to south34.2 mi
- Geographies sharing a boundary1
- Residents per square mile of land496
- Establishments per square mile19.32
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.
Marin County
What hazards affect Marin County
- EPA radon zone predicted average indoor radon screening level less than 2 pCi/LZone 3
- Communities in the NFIP Community Status Book12
- Of those, participating in the NFIP12
- NFIP participation rate100.0 percent
- Best Community Rating System class in the county A lower CRS class is a larger flood insurance premium discount.Class 6
- Communities carrying a CRS class7
The EPA places the county in radon zone 3, a predicted average indoor radon screening level less than 2 pCi/L. The best Community Rating System class in the county is 6, which carries a flood insurance premium discount for properties in the participating community.
US EPA, Map of Radon Zones, county spreadsheet, 2024-05 publication, EPA 402/A-16/001. FEMA OpenFEMA, NFIP Community Status Book, Community Status Book, as retrieved.
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.
- 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 Marin 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 Marin County site starts with the figures you are reading, carrying the same source and period into the credit file.
- Population257,969
- Households103,018
- Average household size2.50
- Median household income$149,091
- Median age47.4
Common questions
Marin County questions, answered from the record.
How many people live in Marin County, California?
257,969, in 103,018 households, ranking 26th of 58 California counties. Source: US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.
Is Marin County growing?
The population has fallen 2.26 percent since the 2020 census base. In 2024 there were 2,097 births against 2,170 deaths, with net migration of 758. Source: US Census Bureau, Population Estimates Program, Vintage 2024, Vintage 2024, estimates 2020 to 2024.
What is the median household income in Marin County?
$149,091. The median owner-occupied home is valued at $1,507,300, which is 10.1 times income, and median gross rent is $2,668 per month. Source: US Census Bureau, American Community Survey 5-Year Estimates, 2020-2024 5-year.
How many businesses are there in Marin County?
10,049 establishments, employing 106,249 people with an annual payroll of $9.22 bn. These are establishments physically operating in the county, not listings. Source: US Census Bureau, County Business Patterns, 2023.
What is the average wage in Marin County?
Average annual pay is $93,552, or $1,799 a week, across 110,934 covered jobs. Source: US Bureau of Labor Statistics, Quarterly Census of Employment and Wages, 2024 annual averages.
How much SBA lending happens in Marin County?
301 7(a) approvals totalling $154.9 m since FY2020, across 67 lenders, with a median approval of $210,000, plus 191 504 approvals worth $158.7 m. These are approvals recorded in the release, not loans disbursed.
Do SBA loans in Marin County get paid back?
Of the 51 loans that have reached a final outcome, 47 were paid in full and 4 charged off, a charge off rate of 7.8 percent. Loans still running are excluded, because they have not yet succeeded or failed.
What is being built in Marin County?
158 housing units were authorised by permit in 2024, with a declared construction value of $77.5 m. Multifamily was 4.4 percent of units. Source: US Census Bureau, Building Permits Survey, 2024 annual.
What is the radon zone for Marin 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 Marin County come from?
The largest single origin is Marin County Non-migrants, with 103,539 households. Arriving households report an average income of $309,655 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 Marin 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 Marin 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.