| City: | Twentynine Palms, California |
| City Alias: | 29 Palms, Twentynin Plm, Twentynine Palms MCB |
| County: | San Bernardino County |
| Timezone: | Pacific (GMT -08:00) |
| Local Time: | 9:41:16 AM |
| Population: | 6,371 [See All] |
| Area Codes: | 442 / 760 |
| Classification: | PO Box |
| Coordinates: | 34.4769, -116.1123 |
| Land Area: | 0.392 sq mi |
| Quick Link: |
ZIP Code 92278 serves the Marine Corps Air Ground Combat Center in Twentynine Palms, California. This small ZIP covers 0.6 square miles within the larger base complex in San Bernardino County. All 6,371 residents live in military barracks and base housing, creating a population-to-household ratio of 3,185 to 1.
Mail to the base uses several accepted formats. USPS recognizes Twentynine Palms, Twentynine Palms MCB, 29 Palms, and Twentynin Plm as valid city names for this ZIP. The post office maintains 167 PO Boxes plus 79 business delivery points, serving service members and base operations. Only Sturgis Street appears in the ZIP+4 database with carrier route delivery, while most mail goes to PO Boxes.
With a median age of 24.3 years, this is one of California's youngest communities. The population is 59% White, 19% Black or African American, 10% Asian, and includes smaller percentages of other racial groups. About 7.5% of workers commute from home (likely administrative staff in base housing). The base functions as a major employer in the Morongo Basin, with 32 business establishments and 435 employees recorded in this ZIP.
This isn't a PO Box Only Zone. Street delivery exists at the main base ZIP (92277), but this smaller ZIP serves specific base facilities where PO Box service works better for the transient military population. Service members receive mail through unit mailrooms or individual boxes. The 83.5x PO Box adoption rate (167 boxes for 2 civilian households) shows how extensively the base relies on box service for personnel who deploy, transfer, or live in barracks.
Only one street appears in ZIP+4 data; most mail uses PO Box service.
ZIP Code 92278 has 6,371 residents and 2 households. The median age is 24.3 years, significantly younger than the state (37.5) and significantly younger than the nation (38.8). The gender split is 92.6% male and 7.4% female, which is much higher than the national male share (49.1%), making this a male-majority area. Largest groups are White (58.6%, much higher than the state average of 41.2%) and Hispanic or Latino (25.3%); Hispanic or Latino residents make up 25.3%, which is much lower than the state average (39.4%), and Black or African American share is much higher than the state average (5.7%).
Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship
| 2020 Population: | 6,371Source: Census DHC |
| 2024 ACS Population Estimate: | 3,913Source: Census ACS |
| 2026 ZC Population Estimate: | 0Source: ZIP-Codes.com |
| Population Density: | 16,252.6 people per sq mile |
| Average Income: | $0Source: Census ACS |
| Households: | 2Source: Census DHC |
| Average House Value: | $666,666,666Source: Census ACS |
| Persons Per Household: | 0.00Source: Census DHC |
| Average Family Size: | 0.00Source: Census ACS |
| Group | 2010 | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Census ACS Population Estimate | -- | 4,835 | 4,567 | 4,441 | 4,156 | 4,079 | 4,162 | 4,154 | 4,737 | 4,890 | 5,001 | 3,318 | 3,574 | 3,839 | 3,913 |
| Decennial Census | 3,846 | -- | -- | -- | -- | -- | -- | -- | -- | -- | 6,371 | -- | -- | -- | -- |
Median Age: 24.3
Male Median Age: 24.3
Female Median Age: 23.2
| 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 | 0 | 0 | 0 | 463 | 3,032 | 1,587 | 354 | 187 | 96 | 80 | 93 | 2 | 4 | 1 | 0 | 0 | 0 | 0 |
| Female | 0 | 0 | 0 | 68 | 253 | 102 | 14 | 15 | 11 | 4 | 1 | 0 | 0 | 4 | 0 | 0 | 0 | 0 |
| Total | 0 | 0 | 0 | 531 | 3,285 | 1,689 | 368 | 202 | 107 | 84 | 94 | 2 | 4 | 5 | 0 | 0 | 0 | 0 |
| White: | 3,735 | 48.22% |
| Black: | 1,233 | 15.92% |
| Hispanic:* | 1,614 | 20.84% |
| Asian: | 640 | 8.26% |
| American Indian: | 106 | 1.37% |
| Hawaiian: | 11 | 0.14% |
| Other: | 406 | 5.24% |
| Total: | 7,745 | 100% |
| Gender | Count | % | Median Age |
|---|---|---|---|
| Males: | 5,899 | 92.59% | 24.3 years |
| Females: | 472 | 7.41% | 23.2 years |
| Total: | 6,371 | 100% | 24.3 years |
| Native, born in the United States: | 3,586 | 91.64% |
| Native, born in PR, Island Areas, or abroad: | 68 | 1.74% |
| Foreign born, naturalized U.S. citizen: | 193 | 4.93% |
| Foreign born, not a U.S. citizen: | 66 | 6.62% |
| Total Population: | 3,913 | 100% |
| Total Native Population: | 3,654 | 93.38% |
| Total Foreign-born Population: | 259 | 6.62% |
In 2024, the Median household income is $0, which is well under the national median ($80,734), is down $88,889 (100.0%) since 2011 and below its 2019 pre-pandemic level by $51,818. Family households earn a median of $0 versus $0 for nonfamily households (a difference of $0). By gender, male median income is $25,871 and female is $24,795, which is far less than the national female median ($55,274), with a current gap of $1,076 that has widened from 2011 to 2024. The labor-force participation rate is 1,981.2%, which is considerably higher than the national rate (63.5%). The unemployment rate is 0.0%, which is considerably lower than the national rate (5.2%). The largest occupation group is Service (38.0%).
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 | $88,889 | $67,440 | $66,875 | $59,728 | $57,976 | $65,547 | $51,528 | $41,912 | $51,818 | $61,481 | $0 | $0 | $0 | $0 |
| Median Family Income | $88,889 | $67,440 | $66,875 | $59,728 | $57,976 | $65,547 | $51,528 | $41,912 | $51,818 | $61,481 | $0 | $0 | $0 | $0 |
| Median NonFamily Income | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Median Male Income | $21,642 | $22,326 | $23,018 | $23,997 | $0 | $23,103 | $23,405 | $23,466 | $23,321 | $23,294 | $22,839 | $22,850 | $23,802 | $25,871 |
| Median Female Income | $25,000 | $27,014 | $30,388 | $26,768 | $0 | $35,781 | $70,278 | $0 | $55,938 | $46,410 | $25,592 | $22,461 | $23,567 | $24,795 |
| Employed: | 187 | 94.92% |
| Unemployed: | 0 | 0.00% |
| Not In Labor Force: | 10 | 5.08% |
| Total: | 197 | 100% |
| Management, business, science, and arts: | 7 | 3.74% |
| Service: | 71 | 37.97% |
| Sales and Office: | 12 | 6.42% |
| Natural resources, construction, and maintenance: | 50 | 26.74% |
| Production, transportation, and material moving: | 47 | 25.13% |
| Total Civilian Employed Population: | 187 | 100% |
In 2024, the median home value is $0, which is much lower than the national median ($332,700), and above its 2019 pre-pandemic level by $0. The median gross rent is $0, which is well under the national median ($1,413), is down $1,301 (100.00%) since 2011 and below its 2019 pre-pandemic level by $1,261. Insufficient data for owner/renter mix. Insufficient data for vacancy rate.
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 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 | $0 |
| Less than $500: | 0 | 0% |
| $500 to $999: | 0 | 0% |
| $1,000 to $1,499: | 0 | 0% |
| $1,500 to $1,999: | 0 | 0% |
| $2,000 to $2,499: | 0 | 0% |
| $2,500 to $2,999: | 0 | 0% |
| $3,000 or more: | 0 | 0% |
| No Rent: | 0 | 0% |
| Total: | 0 | 100% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Median Rent | $1,301 | $1,212 | $1,223 | $1,215 | $1,227 | $1,340 | $1,190 | $1,191 | $1,261 | $1,297 | $0 | $0 | $0 | $0 |
| Owner Occupied (with mortgage): | 0 | 0% |
| Owner Occupied (free and clear, no mortgage): | 0 | 0% |
| Renter Occupied: | 0 | 0% |
| Total Occupied Housing Units: | 0 | 100% |
| Occupied Housing Units: | 0 | 0% |
| Vacant Housing Units (not graphed): | 0 | 0% |
| Total Housing Units: | 0 | 100% |
| Single-Family Units: | 0 | 0% |
| Multi-Family Units: | 0 | 0% |
| Other Units: | 0 | 0% |
| Total Housing Units: | 0 | 100% |
In 2024, 12.20% 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 100.00%, which is comparable to the national rate (89.60%). The uninsured rate is -666,666,666.00%, which is far lower than the national rate (8.40%). Private coverage is -666,666,666.00%, which is far lower than the national rate (67.10%). Public coverage is -666,666,666.00%, which is far lower than the national rate (36.70%). The share of people in poverty is -666,666,666.00%, which is far lower than the national rate (8.80%), down 21.70 percentage points since 2011. 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 (98.87%). College enrollment is 98.87%, which is far higher than the national rate (26.70%), indicating the community is likely a college hub with student-driven housing and services.
Explore More:Educational AttainmentHealth InsurancePoverty Over TimeSchool Enrollment
| Less than 9th grade: | 0 | 0.00% |
| 9th to 12th grade, no diploma: | 0 | 0.00% |
| High school graduate (includes equivalency): | 133 | 35.95% |
| Some college, no degree: | 175 | 47.30% |
| Associate's degree: | 17 | 4.59% |
| Bachelor's degree: | 35 | 9.46% |
| Graduate or professional degree: | 10 | 2.70% |
| Total: | 370 | 100% |
| High school or higher: | 370 | 100.00% |
| Bachelor's degree or higher: | 45 | 12.16% |
| Private Insurance: | 0 | 0% |
| Public Insurance: | 0 | 0% |
| No Insurance: | 0 | 0% |
| Total: | 0 | 100% |
| Has Health Insurance: | 0 | 0% |
| Group | 2011 | 2102 | 2013 | 2014 | 2015 | 2016 | 2017 | 2018 | 2019 | 2020 | 2021 | 2022 | 2023 | 2024 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| % of People in Poverty | 21.7% | 7.9% | 7.1% | 12.6% | 5.6% | 3.6% | 4.2% | 3.4% | 0.0% | 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: | 0 | 0.00% |
| Kindergarten: | 0 | 0.00% |
| Elementary school (grades 1-8): | 0 | 0.00% |
| High school (grades 9-12): | 4 | 1.13% |
| College or graduate school: | 350 | 98.87% |
| Total: | 354 | 100% |
| Early Childhood: | 0 | 0.00% |
| K-12 (Primary & Secondary School): | 4 | 1.13% |
ZIP Code 92278 supports both business and residential activity. According to the Business Census (2024), there are 30 business establishments, employing about 401 people with an annual payroll of $25,809,000. USPS data shows 0 residential mailboxes and 64 business mailboxes, reflecting local delivery coverage.
| # Residential Mailboxes: | 0Source: USPS |
| # Business Mailboxes: | 64Source: USPS |
| Total Delivery Receptacles: | 3,220Source: USPS |
| Single Family Delivery Units: | 0Source: USPS |
| Multi Family Delivery Units: | 0Source: USPS |
| # of Businesses: | 30Source: CBP |
| 1st Quarter Payroll: | $10,086,000Source: CBP |
| Annual Payroll: | $25,809,000Source: CBP |
| # of Employees: | 401Source: CBP |
ZIP Code 92278 is located in San Bernardino County, California, within the Riverside-San Bernardino-Ontario, CA Metropolitan Statistical Area (CBSA 40140) and California's 23rd Congressional District. This Metro area has a population of 4,224,851 people, about 0.15% of whom live in ZIP Code 92278. It covers 0.392 sq mi of land and a water area of 0 sq mi.
| CBSA Name: | Riverside-San Bernardino-Ontario, CASource: Census |
| CBSA Number: | 40140Source: Census |
| CBSA Type: | MetroSource: Census |
| CBSA Division: | --Source: Census |
| CBSA Population: | 4,224,851Source: Census |
| MSA: | Los Angeles-Riverside-Orange County, CASource: Census |
| Land Area: | 0.392 sq miSource: Census |
| Water Area: | --Source: Census |
| Congressional District: | 23Source: USPS |
| Congressional Land Area: | 9898 sq miSource: Census |
| PMSA: | Riverside-San Bernardino, CA PMSASource: Census |
| Intro Date: | < 2004-10Source: ZIP-Codes.com |
| Place FIPS Code: | 0680994Source: Census |
| Place Name: | Twentynine Palms city; CaliforniaSource: Census |
We could not locate which school district 92278 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 February 1, 2026.