County profile · California
Marin County, CA market data
Population, household spending and competition for 56 business types in Marin County, each scored against other counties.
- Population, 2025
- 253,694
- −2.9% since 2020
- Households
- 103,018
- Median household income
- $149,091
- +29.4% vs. 2015–2019, before inflation
- Median home value
- $1,507,300
- Jobs located here
- 110,704
- Highest market score
- 81
- Funeral homes, #54 of 1,472 scored counties
A site report maps the competitors on map listings around any address in Marin County by name and distance, and the households and spending within reach. Or open the report at the center of Marin County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardSurvey estimates 2020–2024 · population estimates 2025 · official business counts 2023 · map listings September 2026 · Data credits · How we measure
What this means
An estimated 253,694 people live in Marin County, in 103,018 households. Population estimates put the population change in Marin County from 2020 to 2025 at −2.9%, against +3.1% for the U.S. The median household income in Marin County is $149,091 a year, 85% above the U.S. median of $80,734. That rose 29.4% from the 2015–2019 survey, before inflation.
Set against the U.S., households in Marin County spend the most on child care and other personal services (an index of 216, where 100 is the U.S. average) and the least on vehicle insurance (93).
The highest Groundwork market scores in Marin County are for funeral homes (81), barbershops (78) and tire shops (75). Marin County ranks #54 of 1,472 scored counties for funeral homes.
Marin County is part of the San Francisco-Oakland-Fremont metro area. For its number of households, Marin County has the most map listings, relative to the U.S., for yoga, Pilates and fitness studios (3.3 times the U.S. rate) and the fewest for barbershops (57% below the U.S. rate).
All 56 business types in Marin County
Highest Groundwork market score first. Each score compares Marin County with other counties for that business type, from 0 to 100. Spending per listing divides a whole spending line (all vehicle repairs, all eating out) by one type’s listings: the demand for each competitor, not a business’s revenue. Compare it across markets with its index, where 100 is the U.S. figure for the same type; the real estate types, whose line is all housing costs, show the index only. How the score works.
| Business type | Score | Rank among counties | Listings | Per 10k households | Spending per listing | Spending per listing vs. U.S. (100) | Official establishments |
|---|---|---|---|---|---|---|---|
| Funeral homes | 81 | #54 of 1,472 | 7 | 0.7 | $2.8M | 406 | 4 |
| Barbershops | 78 | #86 of 1,356 | 24 | 2.3 | $5.9M | 315 | 4 |
| Tire shops | 75 | #160 of 1,530 | 21 | 2.0 | $5.6M | 223 | 11 |
| Convenience stores | 73 | #333 of 2,261 | 47 | 4.6 | $16.1M | 205 | 24 |
| Pest control | 72 | #70 of 699 | 9 | 0.9 | $20.8M | 203 | 10 |
| Roofing and gutters | 72 | #130 of 1,177 | 20 | 1.9 | $20.6M | 243 | 17 |
| Car washes and detailing | 72 | #170 of 1,451 | 23 | 2.2 | $5.1M | 202 | 13 |
| Pizza | 67 | #384 of 2,090 | 62 | 6.0 | $9.2M | 182 | 195 |
| Fast food and sandwich shops | 67 | #455 of 2,222 | 97 | 9.4 | $5.9M | 194 | 195 |
| Oil change and quick lube | 66 | #99 of 479 | 5 | 0.5 | $23.4M | 171 | 7 |
| Gas stations | 65 | #544 of 2,358 | 56 | 5.4 | $4.8M | 201 | 46 |
| HVAC and plumbing | 61 | #449 of 1,707 | 65 | 6.3 | $6.3M | 133 | 100 |
| Home repair trades | 60 | #562 of 2,057 | 110 | 10.7 | $3.7M | 154 | 218 |
| Laundromats | 59 | #268 of 785 | 14 | 1.4 | $18.9M | 151 | 9 |
| Physical therapy | 58 | #492 of 1,422 | 48 | 4.7 | $3.8M | 157 | 50 |
| Electricians | 57 | #416 of 1,160 | 25 | 2.4 | $16.5M | 137 | 101 |
| Grocery and convenience stores | 57 | #887 of 2,402 | 177 | 17.2 | $4.3M | 126 | 103 |
| Optometrists and eye care | 56 | #508 of 1,302 | 45 | 4.4 | $4M | 128 | 24 |
| Pet grooming and boarding | 55 | #595 of 1,461 | 42 | 4.1 | $3.5M | 137 | 41 |
| Auto repair and car care | 55 | #955 of 2,401 | 336 | 32.6 | $349K | 130 | 178 |
| Martial arts and dance studios | 54 | #530 of 1,334 | 69 | 6.7 | $3M | 150 | 72 |
| Veterinarians | 54 | #628 of 1,485 | 53 | 5.1 | $2.8M | 102 | 39 |
| Gyms | 54 | #748 of 1,792 | 114 | 11.1 | $1.8M | 141 | 86 |
| Pet businesses | 54 | #888 of 2,200 | 138 | 13.4 | $1.1M | 121 | 96 |
| Hair salons | 53 | #999 of 2,339 | 258 | 25.0 | $553K | 128 | 81 |
| Restaurants and cafes | 51 | #1,116 of 2,405 | 1,207 | 117.2 | $475K | 128 | 574 |
| Primary care and pediatrics | 50 | #823 of 1,656 | 69 | 6.7 | $2.6M | 147 | 282 |
| Grocery stores | 50 | #1,005 of 2,070 | 69 | 6.7 | $11M | 118 | 79 |
| Landscaping and lawn care | 48 | #751 of 1,493 | 68 | 6.6 | $2.8M | 94 | 149 |
| Bakeries and dessert shops | 48 | #983 of 1,889 | 112 | 10.9 | $5.1M | 123 | 104 |
| Gyms, studios and classes | 48 | #1,141 of 2,088 | 265 | 25.7 | $790K | 119 | 158 |
| Child care and preschools | 47 | #887 of 1,611 | 122 | 11.8 | $1.1M | 106 | 130 |
| Sit-down restaurants | 47 | #1,295 of 2,405 | 698 | 67.8 | $821K | 124 | 280 |
| Auto repair shops | 46 | #1,370 of 2,378 | 240 | 23.3 | $488K | 110 | 143 |
| Pet stores | 45 | #565 of 974 | 34 | 3.3 | $4.3M | 95 | 16 |
| Collision repair and body shops | 45 | #771 of 1,327 | 35 | 3.4 | $3.3M | 109 | 42 |
| Lawn, cleaning and pest control | 45 | #1,047 of 1,771 | 112 | 10.9 | $1.7M | 99 | 242 |
| Nail salons | 42 | #902 of 1,328 | 77 | 7.5 | $1.9M | 111 | 55 |
| Chiropractors | 42 | #953 of 1,490 | 85 | 8.3 | $2.1M | 89 | 49 |
| Salons, barbers and spas | 41 | #1,663 of 2,385 | 568 | 55.1 | $251K | 118 | 178 |
| House cleaning | 39 | #615 of 847 | 35 | 3.4 | $5.3M | 84 | 83 |
| Coffee shops and cafes | 38 | #1,470 of 2,063 | 166 | 16.1 | $3.5M | 93 | 95 |
| Clothing and shoe stores | 35 | #1,567 of 2,087 | 243 | 23.6 | $1.1M | 86 | 111 |
| Dentists and orthodontists | 34 | #1,506 of 1,886 | 175 | 17.0 | $1M | 105 | 177 |
| Property management | 33 | #737 of 910 | 55 | 5.3 | Index only | 79 | 170 |
| Spas and skin care | 31 | #1,506 of 1,769 | 198 | 19.2 | $720K | 82 | 35 |
| Clothing, shoes and laundry | 31 | #1,822 of 2,210 | 364 | 35.3 | $727K | 83 | 151 |
| Doctors, dentists and clinics | 30 | #2,086 of 2,394 | 1,285 | 124.7 | $141K | 92 | 590 |
| Mortgage brokers and lenders | 29 | #791 of 887 | 84 | 8.2 | Index only | 74 | 52 |
| Real estate agents and brokers | 29 | #2,051 of 2,176 | 500 | 48.5 | Index only | 89 | 239 |
| Yoga, Pilates and fitness studios | 28 | #713 of 777 | 82 | 8.0 | $2.6M | 63 | 86 |
| Real estate | 27 | #2,148 of 2,229 | 641 | 62.2 | Index only | 87 | 526 |
| Dry cleaners | 25 | #464 of 507 | 25 | 2.4 | $10.6M | 68 | 31 |
| Insurance agencies | 22 | #2,028 of 2,272 | 187 | 18.2 | $1M | 80 | 122 |
| Urgent care and walk-in clinics | Not scored | Not scored | 4 | 0.4 | $45.2M | 184 | 8 |
| Home inspectors | Not scored | Not scored | 2 | 0.2 | Index only | Too few | 3 |
Household spending in Marin County
What households here spend in a year on each line, in total and per household, with the index against the U.S. average (100).
| Spending line | A year, all households | Per household | Index vs. U.S. (100) |
|---|---|---|---|
| Vehicle maintenance and repairs | $117.1M | $1,137 | 119 |
| Gasoline and other fuels | $268.7M | $2,608 | 100 |
| Food away from home | $572.9M | $5,561 | 137 |
| Groceries | $758.3M | $7,361 | 116 |
| Personal care products and services | $142.6M | $1,384 | 138 |
| Child care and other personal services | $129M | $1,252 | 216 |
| Memberships, classes and admissions | $209.3M | $2,032 | 207 |
| Medical and dental services | $181M | $1,757 | 136 |
| Pets | $146.9M | $1,426 | 157 |
| Clothing, shoes and related services | $264.6M | $2,569 | 125 |
| Vehicle insurance | $187.1M | $1,817 | 93 |
| Home repairs, maintenance and insurance | $411.3M | $3,992 | 132 |
| Lawn care, cleaning and other household services | $187M | $1,816 | 128 |
| Rent and homeowner costs | $2.4B | $23,510 | 141 |
Household spending is estimated from the incomes of the households in each neighborhood, using what households at each income spent nationally in 2024, adjusted for the region. It counts what residents spend, wherever they spend it.
Population and households in Marin County
- Population, 2025 estimate
- 253,694−2.9% since 2020
- Households
- 103,018
- Median age
- 47.7
- Homes lived in by their owners
- 65%
- Vehicles per household
- 1.8
- Land area
- 520 sq. mi.
- People per square mile
- 496
- Median household income
- $149,091+29.4% vs. 2015–2019, before inflation
- Average household income
- $232,579
- Median home value
- $1,507,300
- Jobs located here
- 110,704
- Daytime population
- 260,594Residents who don’t work, plus everyone whose job is here
Looking at a specific site in Marin County?
These figures cover the whole county. A site report draws rings around one address and counts what’s inside them: households, spending, jobs, and the competitors on map listings by name and distance, for any of the 56 business types.
Or open the report at the center of Marin County. Signed out, you see a blurred preview; on an account, each report is one action.
Free10 actions over 3 days, no cardRelated markets
Nearest counties in California 8
- San Francisco County, CA830,235 people
- Napa County, CA134,869 people
- Contra Costa County, CA1,165,012 people
- Sonoma County, CA485,040 people
- Alameda County, CA1,649,473 people
- San Mateo County, CA742,340 people
- Solano County, CA451,918 people
- Santa Clara County, CA1,902,047 people
Questions
How fast is Marin County, CA growing?
Population estimates put Marin County at 253,694 people in 2025, down 2.9% since 2020, against +3.1% for the U.S. It has 103,018 households. Against the 2015–2019 survey, median household income rose 29.4%, before inflation.
How much do households in Marin County, CA spend?
Households in Marin County spend about $2.4B a year on rent and homeowner costs, $758.3M on groceries and $572.9M on food away from home. Relative to the U.S., household spending in Marin County runs highest on child care and other personal services (an index of 216, where 100 is the U.S. average) and lowest on vehicle insurance (93).
Which business types have the highest market scores in Marin County, CA?
Of the business types scored in Marin County, funeral homes (81), barbershops (78) and tire shops (75) have the highest Groundwork market scores. For funeral homes, that ranks #54 of 1,472 scored counties.
How does Marin County, CA compare with the U.S.?
Median household income in Marin County is $149,091, 85% above the U.S. median of $80,734. The population fell 2.9% from 2020 to 2025, against +3.1% for the U.S. The median home value is $1,507,300, against $332,700 for the U.S. Against the U.S., map listings per household run highest for yoga, Pilates and fitness studios (3.3 times the U.S. rate) and lowest for barbershops (57% below the U.S. rate).
What is the Groundwork market score?
The Groundwork market score runs from 0 to 100 and compares a market with others of its kind for one business type: states with states, metro areas with metro areas, small-town markets and counties with their own. It weighs household spending per competitor (35%), households per business with payroll (25%), population growth (20%) and spending power (20%), each ranked against those peers. A higher score means that, taken together, the market has more household spending and more households for each business already there, faster population growth and more spending per household than similar markets. It describes a market, not any one site or deal. 54 of the 56 business types have a score in Marin County, each ranked against other counties.
How can I see the market around a specific site?
Run a Groundwork site report on an address in Marin County. It maps the competitors on map listings near the site and sizes the households and spending within the distance you choose. New accounts get 10 actions over 3 days, no card.
All markets in California · Every U.S. market · How we measure
Screening a site or an acquisition in Marin County?
A site report maps the competitors on map listings near an address and sizes the households and spending around it.
The button opens the report at the center of Marin County. Signed out, you see a blurred preview; on an account, each report is one action.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.
Figures are estimates for research only. Not investment or real estate advice.