| City: | Forest Knolls, California |
| County: | Marin County |
| Timezone: | Pacific (GMT -08:00) |
| Local Time: | 11:05:41 PM |
| Population: | 1,226 [See All] |
| Area Codes: | 415 / 628 |
| Classification: | PO Box |
| Coordinates: | 38.0084, -122.6913 |
| Land Area: | 3.211 sq mi |
| Quick Link: |
Forest Knolls sits in western Marin County along Sir Francis Drake Boulevard, a small community of 1,226 residents scattered across 5.2 square miles of forested hills. Despite being classified as a PO Box ZIP since before 2004, the post office operates both a rural route and a city route serving local addresses alongside 467 PO Boxes. The 0.86 adoption rate (467 boxes for 543 households) means most residents rely on PO Box delivery, and this is officially designated a PO Box Only Zone.
With a median age of 53.7 years and median home values of $886,100, Forest Knolls is an affluent, mature community. The typical household income is $128,561, and 75% of homes are owner-occupied. An unusually high 35.8% of workers (160 people) work from home, suggesting professional residents who can work remotely from this wooded retreat. Education levels run high: 54% of adults hold bachelor's degrees or higher.
Street names tell two stories. Sir Francis Drake Boulevard is the main artery through the community, named for the English explorer who sailed these California waters in 1579. But most local streets carry Spanish names: Montezuma Avenue, Resaca Avenue, Juarez Avenue, Castro Street, Arroyo Road, Rosario Road. These names reference California's Mexican heritage, though the current population is 84% white. Only 17% of residents identify as Hispanic or Latino.
The post office maintains limited street delivery through one rural route covering most addresses and one city route for a small section. General Delivery is also available. Forest Knolls sits between larger Marin communities, with Sleepy Hollow 4.2 miles away, Oak Manor (Fairfax) 4.4 miles away, and San Anselmo 5.6 miles distant. There are 15 small business establishments employing 94 people locally, but many residents commute: 491 drive alone to work, 58 carpool, and 51 use public transit.
Sir Francis Drake Boulevard is the main road, while side streets carry Spanish names like Montezuma, Juarez, Castro, and Arroyo.
ZIP Code 94933 has 1,226 residents and 543 households (average 2.23 persons per household). The median age is 53.7 years, significantly older than the state (37.5) and significantly older than the nation (38.8). The gender split is 49.5% male and 50.5% female, which is about the same as the national male share (49.1%). Largest groups are White (83.6%, much higher than the state average of 41.2% and well above the national average of 61.6%) and Hispanic or Latino (7.7%); Hispanic or Latino residents make up 7.7%, which is much lower than the state average (39.4%).
Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship
| 2020 Population: | 1,226Source: Census DHC |
| 2024 ACS Population Estimate: | 1,255Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 381.8 people per sq mile |
| Average Income: | $128,561Source: Census ACS |
| Households: | 543Source: Census DHC |
| Average House Value: | $886,100Source: Census ACS |
| Persons Per Household: | 2.23Source: Census DHC |
| Average Family Size: | 3.41Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 1,236 | 1,190 | 1,078 | 1,069 | 812 | 658 | 763 | 671 | 837 | 880 | 1,185 | 1,284 | 1,255 |
| Decennial Census | 865 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 1,226 | -- | -- | -- |
Median Age: 53.7
Male Median Age: 50.5
Female Median Age: 56.2
| Group | < 5 | 5-9 | 10-14 | 15-19 | 20-24 | 25-29 | 30-34 | 35-39 | 40-44 | 45-49 | 50-54 | 55-59 | 60-64 | 65-69 | 70-74 | 75-79 | 80-84 | 85+ |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Male | 21 | 16 | 37 | 37 | 21 | 23 | 27 | 38 | 23 | 51 | 53 | 63 | 34 | 50 | 63 | 31 | 14 | 5 |
| Female | 13 | 22 | 22 | 35 | 18 | 25 | 19 | 23 | 34 | 27 | 55 | 78 | 75 | 66 | 64 | 25 | 8 | 10 |
| Total | 34 | 38 | 59 | 72 | 39 | 48 | 46 | 61 | 57 | 78 | 108 | 141 | 109 | 116 | 127 | 56 | 22 | 15 |
| White: | 1,025 | 85.20% |
| Black: | 17 | 1.41% |
| Hispanic:* | 95 | 7.90% |
| Asian: | 32 | 2.66% |
| American Indian: | 12 | 1.00% |
| Hawaiian: | 0 | 0% |
| Other: | 22 | 1.83% |
| Total: | 1,203 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 607 | 49.51% | 50.5 years |
| Females: | 619 | 50.49% | 56.2 years |
| Total: | 1,226 | 100% | 53.7 years |
| Native, born in the United States: | 1,092 | 87.01% |
| Native, born in PR, Island Areas, or abroad: | 17 | 1.35% |
| Foreign born, naturalized U.S. citizen: | 54 | 4.30% |
| Foreign born, not a U.S. citizen: | 92 | 11.63% |
| Total Population: | 1,255 | 100% |
| Total Native Population: | 1,109 | 88.37% |
| Total Foreign-born Population: | 146 | 11.63% |
In 2023, the Median household income is $128,561, which is markedly greater than the national median ($78,538), is up $54,252 (73.0%) since 2011 and above its 2019 pre-pandemic level by $37,177. Family households earn a median of $112,875 versus $122,014 for nonfamily households (a difference of $9,139). By gender, male median income is $116,140 and female is $121,667, which is much higher than the national female median ($53,445), with a current gap of $5,527 that has narrowed from 2011 to 2023. The labor-force participation rate is 64.9%, which is edges past the national rate (63.5%). The unemployment rate is 0.0%, which is markedly below the state rate (6.4%). The largest occupation group is Management (72.6%).
Explore More:Income Over TimeHousehold IncomeEmployment StatusBy Occupation
| Income Type | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Household Income | $74,309 | $73,229 | $69,271 | $71,667 | $64,911 | $76,393 | $94,107 | $79,028 | $91,384 | $109,953 | $120,000 | $116,953 | $128,561 |
| Median Family Income | $74,628 | $103,333 | $76,848 | $107,188 | $85,759 | $81,250 | $110,833 | $90,865 | $0 | $91,768 | $149,063 | $100,952 | $112,875 |
| Median NonFamily Income | $48,929 | $50,625 | $41,304 | $42,202 | $52,431 | $76,010 | $92,917 | $0 | $0 | $109,792 | $0 | $111,758 | $122,014 |
| Median Male Income | $62,048 | $63,516 | $59,453 | $58,351 | $0 | $58,664 | $80,781 | $84,659 | $90,577 | $92,375 | $107,625 | $94,205 | $116,140 |
| Median Female Income | $45,083 | $46,806 | $51,250 | $47,589 | $0 | $78,657 | $54,650 | $0 | $91,848 | $91,827 | $67,153 | $104,063 | $121,667 |
| Employed: | 676 | 64.88% |
| Unemployed: | 0 | 0.00% |
| Not In Labor Force: | 366 | 35.12% |
| Total: | 1,042 | 100% |
| Management, business, science, and arts: | 491 | 72.63% |
| Service: | 58 | 8.58% |
| Sales and Office: | 70 | 10.36% |
| Natural resources, construction, and maintenance: | 51 | 7.54% |
| Production, transportation, and material moving: | 6 | 0.89% |
| Total Civilian Employed Population: | 676 | 100% |
In 2023, the median home value is $886,100, which is considerably higher than the national median ($303,400), is up $212,400 (31.53%) since 2011 and above its 2019 pre-pandemic level by $190,100. The median gross rent is $3,172, which is far above the national median ($1,348), is up $1,391 (78.10%) since 2011 and above its 2019 pre-pandemic level by $864. Of occupied housing, owners make up 72.14% (62.09% with a mortgage, 37.91% free-and-clear) and renters 27.86% - making this ZIP Code more home ownership than the state and under national rental averages. The vacancy rate is 2.01%, which is far lower than the national rate (10.43%).
Explore More:Compare Home ValueHome Value Over TimeRent & Over TimeHousing Occupancy
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Home Value | $673,700 | $599,500 | $600,200 | $549,100 | $584,200 | $566,200 | $630,700 | $603,300 | $696,000 | $875,000 | $879,500 | $866,400 | $886,100 |
| Less than $500: | 0 | 0.00% |
| $500 to $999: | 0 | 0.00% |
| $1,000 to $1,499: | 16 | 9.82% |
| $1,500 to $1,999: | 0 | 0.00% |
| $2,000 to $2,499: | 20 | 12.27% |
| $2,500 to $2,999: | 7 | 4.29% |
| $3,000 or more: | 105 | 64.42% |
| No Rent: | 15 | 9.20% |
| Total: | 163 | 100% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Rent | $1,781 | $1,586 | $1,590 | $1,607 | $0 | $0 | $2,294 | $2,008 | $2,308 | $2,712 | $2,952 | $2,891 | $3,172 |
| Owner Occupied (with mortgage): | 262 | 44.79% |
| Owner Occupied (free and clear, no mortgage): | 160 | 27.35% |
| Renter Occupied: | 163 | 27.86% |
| Total Occupied Housing Units: | 585 | 100% |
| Occupied Housing Units: | 585 | 97.99% |
| Vacant Housing Units (not graphed): | 12 | 2.01% |
| Total Housing Units: | 597 | 100% |
| Single-Family Units: | 523 | 87.60% |
| Multi-Family Units: | 74 | 12.40% |
| Other Units: | 0 | 0.00% |
| Total Housing Units: | 597 | 100% |
In 2023, 54.00% of adults (25+) have a bachelor's degree or higher, which is far higher than the national rate (35.00%), well above both the state and national averages. High school or higher is 94.90%, which is markedly above the state rate (84.60%). The uninsured rate is 0.60%, which is far lower than the national rate (8.60%). Public coverage is 54.00%, which is well above the national rate (36.30%). The share of people in poverty is 5.00%, which is comparable to the national rate (8.70%), down 0.90 percentage points since 2011 and below its 2019 pre-pandemic level by 5.20 percentage points. This suggests a positive shift in the local economic and social landscape - higher incomes, steadier consumer demand, and a strengthening tax base. Among residents ages 3+, the largest enrollment group is elementary (47.13%). College enrollment is 25.41%, which is on par with the state rate (30.00%), meaning the community mirrors broader higher-education participation.
Explore More:Educational AttainmentHealth InsurancePoverty Over TimeSchool Enrollment
| Less than 9th grade: | 49 | 5.11% |
| 9th to 12th grade, no diploma: | 0 | 0.00% |
| High school graduate (includes equivalency): | 101 | 10.54% |
| Some college, no degree: | 200 | 20.88% |
| Associate's degree: | 91 | 9.50% |
| Bachelor's degree: | 312 | 32.57% |
| Graduate or professional degree: | 205 | 21.40% |
| Total: | 958 | 100% |
| High school or higher: | 909 | 94.89% |
| Bachelor's degree or higher: | 517 | 53.97% |
| Private Insurance: | 725 | 51.38% |
| Public Insurance: | 678 | 48.05% |
| No Insurance: | 8 | 0.57% |
| Total: | 1,411 | 100% |
| Has Health Insurance: | 1,403 | 99.43% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % of People in Poverty | 5.9% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% | 10.2% | 8.7% | 6.0% | 5.3% | 5.0% |
Note: Counts of Families & People in poverty are not published at the ZIP Code level due to small sample sizes. Percentages shown are survey estimates from the American Community Survey (ACS). They may differ from official poverty statistics. The U.S. Census Bureau defines poverty status by comparing a family's or individual's total income with federal poverty thresholds that vary by family size and composition.
| Nursery School, Preschool: | 21 | 8.61% |
| Kindergarten: | 11 | 4.51% |
| Elementary school (grades 1-8): | 115 | 47.13% |
| High school (grades 9-12): | 35 | 14.34% |
| College or graduate school: | 62 | 25.41% |
| Total: | 244 | 100% |
| Early Childhood: | 32 | 13.11% |
| K-12 (Primary & Secondary School): | 161 | 65.98% |
ZIP Code 94933 supports both business and residential activity. According to the Business Census (2024), there are 13 business establishments, employing about 68 people with an annual payroll of $4,720,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 1,405Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 13Source: CBP |
| 1st Quarter Payroll: | $1,018,000Source: CBP |
| Annual Payroll: | $4,720,000Source: CBP |
| # of Employees: | 68Source: CBP |
ZIP Code 94933 is located in Marin County, California, within the San Francisco-Oakland-Fremont, CA Metropolitan Statistical Area (CBSA 41860) and California's 2nd Congressional District. This Metro area has a population of 4,653,593 people, about 0.03% of whom live in ZIP Code 94933, and is subdivided into the San Rafael, CA division. It covers 3.211 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | San Francisco-Oakland-Fremont, CASource: Census |
| CBSA Number: | 41860Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | San Rafael, CA (CBSA Div 42034)Source: Census |
| CBSA Population: | 4,653,593Source: Census |
| MSA: | San Francisco-Oakland-San Jose, CA CMSASource: Census |
| Land Area: | 3.211 sq miSource: Census |
| Water Area: | --Source: Census |
| Congressional District: | 02Source: USPS |
| Congressional Land Area: | 12952.23 sq miSource: Census |
| PMSA: | San Francisco, CA PMSASource: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | --Source: Census |
| Place Name: | --Source: Census |
We could not locate which school district 94933 belongs to, but we will update this once new district data is released. There are no public schools nor private schools with a mailing address in this ZIP Code. Listing Nearby schools instead. It also has 6 colleges, universities or post secondary education institutions nearby which would be a short commute to.
Our sources include trusted federal and licensed data from the United States Postal Service, U.S. Census Bureau, U.S. Geological Survey, Centers for Medicare & Medicaid Services, and the National Center for Education Statistics, along with proprietary datasets created by ZIP-Codes.com. Data last updated on January 1, 2026.