ZIP Code 93928 in Jolon, CA

Data Last Updated: February 1, 2026
City:Jolon, California
City Alias:Fort Hunter Liggett, Ft H Liggett
County:Monterey County
Timezone:Pacific (GMT -08:00)
Local Time:9:49:56 AM
Population:259 [See All]
Area Code:831
Classification:PO Box
Coordinates:36.0078, -121.2853
Land Area:38.399 sq mi
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93928 - Jolon, CA

ZIP Code 93928, Jolon

Military
LocationMonterey County, CA
Area15.4 sq mi
Population259
Households82
PO Boxes131 Regional Hub (160%)
Median Age34.3 years
ZIP CreatedBefore Oct 2004
Key Facts
  • Fort Hunter Liggett's 131 PO Boxes serve just 259 residents, but the adoption rate of 1.6 means the post office also handles mail for personnel from surrounding areas who access the base.
  • Infantry Road is the only street with postal delivery records, reflecting the military installation's building-based address system where unit designations matter more than traditional street addresses.
  • About 12% of residents (31 people) live in barracks and other group quarters, typical of active military installations with both permanent personnel and transient trainees.
  • The median age of 34.3 years aligns with active-duty military demographics, younger than California's state average but consistent with career soldiers and their families.
  • Despite covering 15.4 square miles, the installation has just one rural carrier route because mail delivery centers on the post office rather than door-to-door residential service.
  • The ZIP code appears under three official names in USPS records: Jolon (the historic community), Fort Hunter Liggett, and Ft H Liggett, giving personnel flexibility in how they address mail.

Why Military Bases Use PO Boxes

The post office maintains 131 PO Boxes for a population of 259 people. That's a PO Box adoption rate of 1.6, meaning the facility serves not just residents but also draws personnel from surrounding areas who need mail access at the base. The ZIP appears in postal records under three names: Jolon (the primary designation), Fort Hunter Liggett, and the abbreviated Ft H Liggett, reflecting both the historic community name and the modern military presence.

Infrastructure and Delivery Routes

Infantry Road is the only street with designated ZIP+4 carrier routes, appearing in postal records with just one delivery segment. This single-street configuration is typical of military installations where building names and unit designations matter more than street addresses. The Postmaster building appears as the sole named structure in delivery records.

Population and Demographics

The population breaks down to reveal a military community: 31 people live in non-institutionalized group quarters like barracks, while the remaining residents occupy the 82 households scattered across base housing. The median age of 34.3 years aligns with active-duty military demographics. About 18.4% of the civilian labor force works from home, likely military spouses and contractors supporting base operations.

Geographic Context

The rural character of Fort Hunter Liggett shows in the numbers. The installation spans 38.4 square miles of land with minimal water features. One rural carrier route handles delivery across the vast training grounds. There's no city carrier delivery because this isn't a city. It's a military reservation where mail flows through centralized PO Boxes rather than door-to-door service.

Street Name Patterns

Military Infrastructure

With only Infantry Road appearing in postal delivery records, the street network reveals Fort Hunter Liggett's identity as a military training facility rather than a traditional residential community. The single street name references Army infantry operations, while the minimal delivery infrastructure reflects a building-based mail system centered on PO Box service at the installation's post office.

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Population & Demographics


ZIP Code 93928 has 259 residents and 82 households (average 2.78 persons per household). The median age is 34.3 years, younger than the state (37.5) and younger than the nation (38.8). The gender split is 56.4% male and 43.6% female, which is much higher than the national male share (49.1%), making this a male-majority area. Largest groups are White (57.9%, much higher than the state average of 41.2%) and Hispanic or Latino (23.6%); Hispanic or Latino residents make up 23.6%, which is much lower than the state average (39.4%).

Explore More:Population Over TimeBy Age & GenderBy RaceBy GenderNativity & Citizenship

Source: U.S. Census 2020 Demographics & Housing Characteristics (DHC) and U.S. Census 2011-2024 American Community Survey (ACS) 5-Year Estimates.
2020 Population:259Source: Census DHC
2024 ACS Population Estimate:1,175Source: Census ACS
2026 ZC Population Estimate:0Source: ZIP-Codes.com
Population Density:6.7 people per sq mile
Average Income:$0Source: Census ACS
Households:82Source: Census DHC
Average House Value:$666,666,666Source: Census ACS
Persons Per Household:2.78Source: Census DHC
Average Family Size:2.38Source: Census ACS

Population Over Time (with 2010 & 2020 Census Benchmarks)


Group201020112102201320142015201620172018201920202021202220232024
Census ACS Population Estimate--3813383083624314414018208541,0199041,0401,0841,175
Decennial Census506------------------259--------
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP05. DEMOGRAPHIC AND HOUSING ESTIMATES

Population by Age & Gender (Total, Male, Female)


Median Age: 34.3

Male Median Age: 28.3

Female Median Age: 39.2

Group< 55-910-1415-1920-2425-2930-3435-3940-4445-4950-5455-5960-6465-6970-7475-7980-8485+
Male18107101321107271081076000
Female1085337617542021226030
Total2818121316281624711301022912030
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Population by Race


White:15052.08%
Black:237.99%
Hispanic:*6121.18%
Asian:248.33%
American Indian:51.74%
Hawaiian:113.82%
Other:144.86%
Total:288100%
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)
* NOTE: Hispanic or Latino is an ethnicity, not a race. This means individuals who identify as Hispanic will also be included in one of the race categories (such as White or Black). As a result, the totals shown here may exceed 100% when Hispanic is displayed alongside racial groups.

Gender Breakdown


GenderCount%Median Age
Males:14656.37%28.3 years
Females:11343.63%39.2 years
Total:259100%34.3 years
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Nativity & Citizenship


Native, born in the United States:1,10293.79%
Native, born in PR, Island Areas, or abroad:221.87%
Foreign born, naturalized U.S. citizen:514.34%
Foreign born, not a U.S. citizen:04.34%
Total Population:1,175100%
Total Native Population:1,12495.66%
Total Foreign-born Population:514.34%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS
Note: Nativity and Citizenship derived from American Community Survey (ACS) 5-year estimates. Total Population listed here will not match official ZIP Code population totals, which are based on the Decennial Census.

Income & Employment


In 2024, the Median household income is $0, which is well under the national median ($80,734), is down $77,560 (100.0%) since 2011 and above its 2019 pre-pandemic level by $0. Family households earn a median of $0 versus $0 for nonfamily households (a difference of $0). By gender, male median income is $24,688 and female is $29,167, which is well under the national female median ($55,274), with a current gap of $4,479 that has widened from 2011 to 2024. The labor-force participation rate is 582.4%, which is considerably higher than the national rate (63.5%). The unemployment rate is 0.3%, which is far lower than the national rate (5.2%). The largest occupation group is Service (58.7%).

Explore More:Income Over TimeHousehold IncomeEmployment StatusBy Occupation

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. Using data from Tables DP02, DP03, DP04 and DP05.

Median Income Over Time (Household, Family, Nonfamily, Male, Female)


Income Type20112012201320142015201620172018201920202021202220232024
Median Household Income$77,560$78,155$80,707$77,250$80,089$0$0$0$0$0$0$0$0$0
Median Family Income$77,604$78,636$81,250$0$0$0$0$0$0$0$0$0$0$0
Median NonFamily Income$70,000$77,625$0$0$0$0$0$0$0$0$0$0$0$0
Median Male Income$36,083$24,968$25,833$26,042$26,184$26,395$26,875$30,833$33,120$24,960$27,241$21,824$25,015$24,688
Median Female Income$47,917$34,583$41,250$34,318$22,900$23,333$22,310$0$51,563$52,500$55,417$27,960$28,262$29,167
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

Average Household Income


Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Employment Status


Employed:17989.95%
Unemployed:42.01%
Not In Labor Force:168.04%
Total:199100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Employment by Occupation (Civilian Employed Population, 16 and Over)


Management, business, science, and arts:4927.37%
Service:10558.66%
Sales and Office:116.15%
Natural resources, construction, and maintenance:00.00%
Production, transportation, and material moving:147.82%
Total Civilian Employed Population:179100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS.

Housing & Affordability


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 $1,292 (100.00%) since 2011 and above its 2019 pre-pandemic level by $0. Insufficient data for owner/renter mix. Insufficient data for vacancy rate.

Explore More:Compare Home ValueHome Value Over TimeRent & Over TimeHousing Occupancy

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. Using data from Table DP03, SELECTED ECONOMIC CHARACTERISTICS.

Median Home Value (Comparison)


Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Home Value Over Time


Group20112102201320142015201620172018201920202021202220232024
Median Home Value$0$0$0$0$0$0$0$0$0$0$0$0$0$0
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Gross Rent Paid


Less than $500:00%
$500 to $999:00%
$1,000 to $1,499:00%
$1,500 to $1,999:00%
$2,000 to $2,499:00%
$2,500 to $2,999:00%
$3,000 or more:00%
No Rent:00%
Total:0100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Median Gross Rent Over Time


Group20112102201320142015201620172018201920202021202220232024
Median Rent$1,292$1,266$986$965$966$0$0$0$0$0$0$0$0$0
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Housing Occupancy


Owner Occupied (with mortgage):00%
Owner Occupied (free and clear, no mortgage):00%
Renter Occupied:00%
Total Occupied Housing Units:0100%

Occupied Housing Units:00%
Vacant Housing Units (not graphed):00%
Total Housing Units:0100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Housing Type (Single-Family, Multi-Family, Other)


Single-Family Units:00%
Multi-Family Units:00%
Other Units:00%
Total Housing Units:0100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Education, Health & Community


In 2024, 30.70% of adults (25+) have a bachelor's degree or higher, which is comparable to the national rate (35.70%). High school or higher is 100.00%, which is far higher than 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 15.80 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 (100.00%). College enrollment is 100.00%, 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

Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. Using data from Tables DP02 and DP03.

Educational Attainment of Adults (25 and Older)


Less than 9th grade:00.00%
9th to 12th grade, no diploma:00.00%
High school graduate (includes equivalency):8820.00%
Some college, no degree:11726.59%
Associate's degree:10022.73%
Bachelor's degree:11726.59%
Graduate or professional degree:184.09%
Total:440100%
High school or higher:440100.00%
Bachelor's degree or higher:13530.68%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Health Insurance Coverage by Type (Private, Public, Uninsured)


Private Insurance:00%
Public Insurance:00%
No Insurance:00%
Total:0100%
Has Health Insurance:00%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP03. SELECTED ECONOMIC CHARACTERISTICS

Percentage of People in Poverty Over Time (2011-2024)


Group20112102201320142015201620172018201920202021202220232024
% of People in Poverty15.8%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP03. SELECTED ECONOMIC CHARACTERISTICS

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.

School Enrollment by Education Level (Ages 3 and Older)


Nursery School, Preschool:00.00%
Kindergarten:00.00%
Elementary school (grades 1-8):00.00%
High school (grades 9-12):00.00%
College or graduate school:111100.00%
Total:111100%
Early Childhood:00.00%
K-12 (Primary & Secondary School):00.00%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Business & Employment Statistics


ZIP Code 93928 supports both business and residential activity. According to the Business Census (2024), there are 5 business establishments, employing about 79 people with an annual payroll of $5,535,000.

# Residential Mailboxes:0Source: USPS
# Business Mailboxes:0Source: USPS
Total Delivery Receptacles:4,146Source: USPS
Single Family Delivery Units:0Source: USPS
Multi Family Delivery Units:0Source: USPS
# of Businesses:5Source: CBP
1st Quarter Payroll:$1,454,000Source: CBP
Annual Payroll:$5,535,000Source: CBP
# of Employees:79Source: CBP

Geography, Land Area, & Statistical Classifications


ZIP Code 93928 is located in Monterey County, California, within the Salinas, CA Metropolitan Statistical Area (CBSA 41500) and California's 18th Congressional District. This Metro area has a population of 415,057 people, about 0.06% of whom live in ZIP Code 93928. It covers 38.399 sq mi of land and a water area of 0.038 sq mi.

CBSA Name:Salinas, CASource: Census
CBSA Number:41500Source: Census
CBSA Type:MetroSource: Census
CBSA Division:--Source: Census
CBSA Population:415,057Source: Census
MSA:Salinas, CA MSASource: Census
Land Area:38.399 sq miSource: Census
Water Area:0.038 sq miSource: Census
Congressional District:18Source: USPS
Congressional Land Area:696.12 sq miSource: Census
PMSA:--Source: Census
Intro Date:< 2004-10Source: ZIP-Codes.com
Place FIPS Code:--Source: Census
Place Name:--Source: Census

Adjacent & Nearby ZIP Codes


93930 | | 93927

Schools in ZIP Code 93928


We could not locate which school district 93928 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.

Pacific Valley (K-12) 69325 Highway 1
Big Sur, CA 93920
District: Big Sur Unified School DistrictNearby
San Antonio Elementary 67550 Lockwood/Jolon Rd.
Lockwood, CA 93932
District: San Antonio Union Elementary School DistrictNearby
Pinnacle Coastal Valley High 760 Broadway St.
King City, CA 93930
District: South Monterey County Joint Union High School DistrictNearby
Portola-Butler Continuation High 760 Broadway St.
King City, CA 93930
District: South Monterey County Joint Union High School DistrictNearby
King City High 720 Broadway St.
King City, CA 93930
District: South Monterey County Joint Union High School DistrictNearby
Hillsview Christian Academic School 302 N Second St
King City, CA 93930
District: Private SchoolNearby
Astra Nova School 41 Poppy Rd
Carmel Valley, CA 93924
District: Private SchoolNearby
Rainbow Bright Christian Learning Center 739 23rd St
Paso Robles, CA 93446
District: Private SchoolNearby

Colleges & Post Secondary Schools near ZIP Code 93928


Cet-Soledad 930 Los Coches Drive, Suite 103
Soledad, CA 93960-2996
Type: Post Secondary
Design's School Of Cosmetology 2727 Buena Vista Drive #105
Paso Robles, CA 93446
Type: Post Secondary
Hartnell College 411 Central Avenue
Salinas, CA 93901
Type: Post Secondary
San Joaquin Valley College-Atascadero 8845 El Camino Real
Atascadero, CA 93422-5333
Type: Post Secondary
Waynes College Of Beauty 1271 North Main Street
Salinas, CA 93906-2830
Type: Post Secondary
Naval Postgraduate School 1 University Circle
Monterey, CA 93943
Type: Post Secondary

Sources & References


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.

  1. U.S. Postal Service [Last Updated: 2/1/2026], https://www.usps.com
  2. ZIP-Codes.com Proprietary Data Enhancements [Updated: 2/1/2026], https://www.zip-codes.com
  3. U.S. Census [Updated: Varies], https://www.census.gov
    • U.S. Census Office of Management and Budget [Updated: As Released]
    • U.S. Census 2020 Demographic & Housing Characteristics (DHC) [Decennial] [Updated: 5/25/2023]
    • U.S. Census 2011-2024 American Community Survey 5-year estimates (ACS) [Annually] [Updated: Annually, As Released]
    • U.S. Census Business Patterns (CBD) [Annually] [Updated: Annually, As Released]
    • U.S. Census American National Standards Institute (ANSI) [Updated: As Released]
  4. U.S. Geological Survey [Updated: Varies], https://www.usgs.gov
  5. Centers for Medicare & Medicaid Services [Updated: Annually, As Released], https://www.cms.gov
  6. National Center for Education Statistics [Updated: 2/1/2026], https://nces.ed.gov