| City: | Los Alamos, California |
| County: | Santa Barbara County |
| Timezone: | Pacific (GMT -08:00) |
| Local Time: | 9:47:10 AM |
| Population: | 2,048 [See All] |
| Area Codes: | 805 / 820 |
| Classification: | PO Box |
| Coordinates: | 34.7623, -120.2683 |
| Land Area: | 44.09 sq mi |
| Quick Link: |
Los Alamos sits in the hills of northern Santa Barbara County, a rural community of 2,048 residents spread across 42 square miles. This is a PO Box Only Zone. Despite having rural carrier routes serving the area, the post office maintains 711 PO Boxes for 701 households, meaning nearly every household relies on a box at the post office.
The community has a split identity. Main Street and Bell Street anchor a small town center with apartments and units, while rural roads like Alisos Canyon Road, Cat Canyon Road, and Price Ranch Road stretch into the surrounding ranch land. Highway 101 cuts through the territory, connecting Los Alamos to the larger Santa Barbara County region.
With a median home value of $672,100 and nearly 20% of workers working from home, this isn't a working ranch community anymore. The population is racially diverse, with 54% identifying as White alone and 21% as Hispanic or Latino. The median age of 39.6 years and a ratio of 2.9 people per household suggest families rather than retirees or seasonal residents.
Mail delivery works through two rural carrier routes covering the 34 streets in the ZIP+4 database. But everyone needs a PO Box. With IsPOBoxOnlyZone status confirmed, there's no alternative for receiving mail here. The post office serves as the essential hub where all 2,048 residents come to collect their mail, packages, and deliveries.
Street names mix small-town basics (Main Street, Bell Street) with rural ranch roads (Cat Canyon Road, Price Ranch Road) and Highway 101 corridor access.
ZIP Code 93440 has 2,048 residents and 701 households (average 2.90 persons per household). The median age is 39.6 years, slightly older than the state (37.5) and about the same as the nation (38.8). The gender split is 49.7% male and 50.3% female, which is about the same as the national male share (49.1%). Largest groups are White (53.8%, much higher than the state average of 41.2% and well below the national average of 61.6%) and Hispanic or Latino (50.0%); Hispanic or Latino residents make up 50.0%, which is much higher than the national average (18.7%), and Other / Two or More Races share is much higher than the national average (8.4%).
Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship
| 2020 Population: | 2,048Source: Census DHC |
| 2024 ACS Population Estimate: | 1,185Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 46.5 people per sq mile |
| Average Income: | $79,167Source: Census ACS |
| Households: | 701Source: Census DHC |
| Average House Value: | $831,300Source: Census ACS |
| Persons Per Household: | 2.90Source: Census DHC |
| Average Family Size: | 3.10Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 1,641 | 1,723 | 1,680 | 1,472 | 1,813 | 1,507 | 1,601 | 1,648 | 1,659 | 1,355 | 1,354 | 846 | 896 | 1,185 |
| Decennial Census | 2,058 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 2,048 | -- | -- | -- | -- |
Median Age: 39.6
Male Median Age: 38.2
Female Median Age: 40.6
| 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 | 70 | 63 | 84 | 63 | 62 | 69 | 56 | 67 | 49 | 38 | 76 | 66 | 85 | 67 | 50 | 24 | 9 | 19 |
| Female | 49 | 79 | 53 | 69 | 64 | 67 | 67 | 52 | 63 | 65 | 78 | 79 | 77 | 69 | 46 | 15 | 19 | 20 |
| Total | 119 | 142 | 137 | 132 | 126 | 136 | 123 | 119 | 112 | 103 | 154 | 145 | 162 | 136 | 96 | 39 | 28 | 39 |
| White: | 1,102 | 41.74% |
| Black: | 13 | 0.49% |
| Hispanic:* | 1,023 | 38.75% |
| Asian: | 23 | 0.87% |
| American Indian: | 61 | 2.31% |
| Hawaiian: | 1 | 0.04% |
| Other: | 417 | 15.80% |
| Total: | 2,640 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 1,017 | 49.66% | 38.2 years |
| Females: | 1,031 | 50.34% | 40.6 years |
| Total: | 2,048 | 100% | 39.6 years |
| Native, born in the United States: | 938 | 79.16% |
| Native, born in PR, Island Areas, or abroad: | 0 | 0.00% |
| Foreign born, naturalized U.S. citizen: | 125 | 10.55% |
| Foreign born, not a U.S. citizen: | 122 | 20.84% |
| Total Population: | 1,185 | 100% |
| Total Native Population: | 938 | 79.16% |
| Total Foreign-born Population: | 247 | 20.84% |
In 2024, the Median household income is $79,167, which is slightly below the national median ($80,734), is up $7,084 (9.8%) since 2011 and above its 2019 pre-pandemic level by $14,584. Family households earn a median of $91,641 versus $73,250 for nonfamily households (a difference of $18,391). By gender, male median income is $76,583 and female is $0, which is considerably lower than the national female median ($55,274), with a current gap of $76,583 that has widened from 2011 to 2024. The labor-force participation rate is 64.6%, which is edges past the national rate (63.5%). The unemployment rate is 6.0%, which is notably higher than the national rate (5.2%). The largest occupation group is Sales (32.8%).
Explore More:Income Over TimeHousehold IncomeEmployment StatusBy Occupation
| Income Type | 2011 | 2012 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Household Income | $72,083 | $68,750 | $63,177 | $63,112 | $62,196 | $60,909 | $65,608 | $71,433 | $64,583 | $73,375 | $67,418 | $46,930 | $53,673 | $79,167 |
| Median Family Income | $65,208 | $64,327 | $61,950 | $58,500 | $56,375 | $58,632 | $60,313 | $62,073 | $63,141 | $0 | $0 | $0 | $54,043 | $91,641 |
| Median NonFamily Income | $73,804 | $75,655 | $63,528 | $64,517 | $67,409 | $66,723 | $68,333 | $128,036 | $71,339 | $73,406 | $76,031 | $42,039 | $52,708 | $73,250 |
| Median Male Income | $47,955 | $53,636 | $44,479 | $56,875 | $0 | $45,461 | $52,429 | $56,383 | $58,455 | $75,804 | $78,218 | $0 | $0 | $76,583 |
| Median Female Income | $50,795 | $51,058 | $52,279 | $45,750 | $0 | $46,711 | $0 | $70,417 | $74,136 | $74,588 | $76,267 | $0 | $0 | $0 |
| Employed: | 612 | 60.71% |
| Unemployed: | 39 | 3.87% |
| Not In Labor Force: | 357 | 35.42% |
| Total: | 1,008 | 100% |
| Management, business, science, and arts: | 136 | 22.22% |
| Service: | 106 | 17.32% |
| Sales and Office: | 201 | 32.84% |
| Natural resources, construction, and maintenance: | 122 | 19.93% |
| Production, transportation, and material moving: | 47 | 7.68% |
| Total Civilian Employed Population: | 612 | 100% |
In 2024, the median home value is $831,300, which is considerably higher than the national median ($332,700), is up $449,500 (117.73%) since 2011 and above its 2019 pre-pandemic level by $381,300. The median gross rent is $2,882, which is considerably higher than the national median ($1,413), is up $2,029 (237.87%) since 2011 and above its 2019 pre-pandemic level by $1,213. Of occupied housing, owners make up 74.54% (84.16% with a mortgage, 15.84% free-and-clear) and renters 25.46% - making this ZIP Code under national rental averages. The vacancy rate is 22.24%, which is considerably higher than the national rate (10.12%).
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 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Home Value | $381,800 | $353,900 | $353,700 | $364,200 | $364,400 | $373,000 | $451,900 | $470,700 | $450,000 | $512,900 | $553,800 | $639,000 | $672,100 | $831,300 |
| Less than $500: | 0 | 0.00% |
| $500 to $999: | 14 | 10.14% |
| $1,000 to $1,499: | 0 | 0.00% |
| $1,500 to $1,999: | 0 | 0.00% |
| $2,000 to $2,499: | 0 | 0.00% |
| $2,500 to $2,999: | 72 | 52.17% |
| $3,000 or more: | 52 | 37.68% |
| No Rent: | 0 | 0.00% |
| Total: | 138 | 100% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Rent | $853 | $1,256 | $982 | $960 | $1,219 | $1,586 | $1,238 | $1,590 | $1,669 | $1,120 | $1,128 | $536 | $0 | $2,882 |
| Owner Occupied (with mortgage): | 340 | 62.73% |
| Owner Occupied (free and clear, no mortgage): | 64 | 11.81% |
| Renter Occupied: | 138 | 25.46% |
| Total Occupied Housing Units: | 542 | 100% |
| Occupied Housing Units: | 542 | 77.76% |
| Vacant Housing Units (not graphed): | 155 | 22.24% |
| Total Housing Units: | 697 | 100% |
| Single-Family Units: | 683 | 97.99% |
| Multi-Family Units: | 14 | 2.01% |
| Other Units: | 0 | 0.00% |
| Total Housing Units: | 697 | 100% |
In 2024, 17.10% of adults (25+) have a bachelor's degree or higher, which is far lower than the national rate (35.70%). High school or higher is 90.50%, which is comparable to the national rate (89.60%). The uninsured rate is 6.20%, which is comparable to the national rate (8.40%). Public coverage is 57.30%, which is far higher than the national rate (36.70%). The share of people in poverty is 0.00%, which is comparable to the national rate (8.80%), down 14.60 percentage points since 2011 and below its 2019 pre-pandemic level by 10.30 percentage points. This points to a pronounced improvement in local conditions - rising incomes, firmer consumer demand, and a stronger tax base. Among residents ages 3+, the largest enrollment group is college (36.33%). College enrollment is 36.33%, which is comparable to the national rate (26.70%), meaning the community mirrors broader higher-education participation.
Explore More:Educational AttainmentHealth InsurancePoverty Over TimeSchool Enrollment
| Less than 9th grade: | 6 | 0.62% |
| 9th to 12th grade, no diploma: | 87 | 8.92% |
| High school graduate (includes equivalency): | 248 | 25.44% |
| Some college, no degree: | 223 | 22.87% |
| Associate's degree: | 244 | 25.03% |
| Bachelor's degree: | 42 | 4.31% |
| Graduate or professional degree: | 125 | 12.82% |
| Total: | 975 | 100% |
| High school or higher: | 882 | 90.46% |
| Bachelor's degree or higher: | 167 | 17.13% |
| Private Insurance: | 851 | 53.09% |
| Public Insurance: | 679 | 42.36% |
| No Insurance: | 73 | 4.55% |
| Total: | 1,603 | 100% |
| Has Health Insurance: | 1,530 | 95.45% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % of People in Poverty | 14.6% | 12.8% | 12.3% | 9.1% | 13.4% | 13.8% | 12.2% | 10.3% | 10.3% | 0.0% | 0.0% | 0.0% | 0.0% | 0.0% |
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: | 58 | 20.07% |
| Kindergarten: | 44 | 15.22% |
| Elementary school (grades 1-8): | 13 | 4.50% |
| High school (grades 9-12): | 69 | 23.88% |
| College or graduate school: | 105 | 36.33% |
| Total: | 289 | 100% |
| Early Childhood: | 102 | 35.29% |
| K-12 (Primary & Secondary School): | 126 | 43.60% |
ZIP Code 93440 supports both business and residential activity. According to the Business Census (2024), there are 40 business establishments, employing about 317 people with an annual payroll of $12,900,000.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 0Source: USPS |
| Total Delivery Receptacles: | 774Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 40Source: CBP |
| 1st Quarter Payroll: | $3,001,000Source: CBP |
| Annual Payroll: | $12,900,000Source: CBP |
| # of Employees: | 317Source: CBP |
ZIP Code 93440 is located in Santa Barbara County, California, within the Santa Maria-Santa Barbara, CA Metropolitan Statistical Area (CBSA 42200) and California's 24th Congressional District. This Metro area has a population of 0 people, about 0.00% of whom live in ZIP Code 93440. It covers 44.09 sq mi of land and a water area of 0.039 sq mi.
| CBSA Name: | Santa Maria-Santa Barbara, CASource: Census |
| CBSA Number: | 42200Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 0Source: Census |
| MSA: | Santa Barbara-Santa Maria-Lompoc, CA MSASource: Census |
| Land Area: | 44.09 sq miSource: Census |
| Water Area: | 0.039 sq miSource: Census |
| Congressional District: | 24Source: USPS |
| Congressional Land Area: | 6883.35 sq miSource: Census |
| PMSA: | --Source: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 0643252Source: Census |
| Place Name: | Los Alamos CDP; CaliforniaSource: Census |
ZIP Code 93440 is in the Orcutt Union Elementary School District, which serves grades Kindergarten thru 8th. There are 1 public school(s) in this ZIP Code, and we have located 3 private school(s). 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 February 1, 2026.