ZIP Code 94569 in Port Costa, CA

Data Last Updated: March 1, 2026
City:Port Costa, California
County:Contra Costa County
Timezone:Pacific (GMT -08:00)
Local Time:9:52:52 AM
Population:210 [See All]
Area Codes:341 / 510
Classification:PO Box
Coordinates:38.0460, -122.1871
Land Area:1.286 sq mi
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94569 - Port Costa, CA

ZIP Code 94569, Port Costa

Small Town
LocationContra Costa County, CA
Area2.5 sq mi
Population210
Households112
PO Boxes125 (112% adoption)
Median Age50.7 years
ZIP CreatedBefore Oct 2004
Key Facts
  • Port Costa has 125 PO Boxes serving 112 occupied households, making it a PO Box-only community
  • The adoption rate of 1.12 means the post office serves slightly beyond the immediate town boundaries
  • Two rural carrier routes cover the delivery area, with no city carrier routes present
  • Only six streets have named mail delivery points, with Canyon Lake Drive having the most (10 records including apartments)
  • The community is tiny but expensive: 210 people live here, but median home values reach $586,500
  • The median age of 50.7 years suggests an older, established population

Postal Service Pattern

The post office serves slightly more boxes than there are local households (112 occupied homes), with an adoption rate of 1.12. That means some boxes go to people from surrounding areas. Two rural carrier routes handle what little street-side delivery exists here, mostly serving the six named streets: Canyon Lake Drive (which has apartments), Carquinez Scenic Drive, Prospect Avenue, and a few others. The median age is 50.7 years, and the median household income is $36,710. Home values average $586,500, reflecting Bay Area pricing even in this tiny waterfront enclave.

Street Name Patterns

Geographic Names Waterfront References

The street names reflect Port Costa's location on the Carquinez Strait. Canyon Lake Drive is the largest street with apartment units, while Carquinez Scenic Drive references the waterway that defines this community. With only six named streets total, this is one of California's smallest incorporated mailing areas.

Nearby Areas

Carriage Hills North Carriage Hills South May Valley Countryside El Sobrante Hills
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Population & Demographics


ZIP Code 94569 has 210 residents and 112 households (average 1.88 persons per household). The median age is 50.7 years, significantly older than the state (37.5) and significantly older than the nation (38.8). The gender split is 50.0% male and 50.0% female, which is about the same as the national male share (49.1%). Largest groups are White (79.5%, much higher than the state average of 41.2% and well above the national average of 61.6%) and Hispanic or Latino (11.4%); Hispanic or Latino residents make up 11.4%, 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:210Source: Census DHC
2024 ACS Population Estimate:296Source: Census ACS
2026 ZC Population Estimate:0Source: ZIP-Codes.com
Population Density:163.3 people per sq mile
Average Income:$38,929Source: Census ACS
Households:112Source: Census DHC
Average House Value:$600,000Source: Census ACS
Persons Per Household:1.88Source: Census DHC
Average Family Size:3.86Source: Census ACS

Population Over Time (with 2010 & 2020 Census Benchmarks)


Group201020112102201320142015201620172018201920202021202220232024
Census ACS Population Estimate--274361325320327243194205180242247251194296
Decennial Census198------------------210--------
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: 50.7

Male Median Age: 50.8

Female Median Age: 50.6

Group< 55-910-1415-1920-2425-2930-3435-3940-4445-4950-5455-5960-6465-6970-7475-7980-8485+
Male243721097121720358320
Female1432801011477612143913
Total38691011020111924261519111233
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Population by Race


White:16783.08%
Black:00%
Hispanic:*2411.94%
Asian:52.49%
American Indian:21.00%
Hawaiian:00%
Other:31.49%
Total:201100%
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:10550.00%50.8 years
Females:10550.00%50.6 years
Total:210100%50.7 years
Source: U.S. Census Bureau (2020) Demographics & Housing Characteristics (DHC)

Nativity & Citizenship


Native, born in the United States:27893.92%
Native, born in PR, Island Areas, or abroad:00.00%
Foreign born, naturalized U.S. citizen:00.00%
Foreign born, not a U.S. citizen:186.08%
Total Population:296100%
Total Native Population:27893.92%
Total Foreign-born Population:186.08%
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 $38,929, which is much lower than the national median ($80,734), is down $52,500 (57.4%) since 2011 and below its 2019 pre-pandemic level by $142,187. Family households earn a median of $0 versus $29,780 for nonfamily households (a difference of $29,780). By gender, male median income is $0 and female is $0, which is considerably lower than the national female median ($55,274), with a current gap of $0 that has narrowed from 2011 to 2024. The labor-force participation rate is 47.3%, which is markedly below the national rate (63.5%). The unemployment rate is 9.0%, which is considerably above the national rate (5.2%). The largest occupation group is Natural resources (53.2%).

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$91,429$92,743$86,719$94,420$110,347$136,875$142,905$153,750$181,116$0$0$0$0$38,929
Median Family Income$91,714$92,986$86,367$89,348$89,444$0$172,625$0$0$0$0$0$0$0
Median NonFamily Income$19,643$19,743$90,375$94,955$133,385$137,375$139,643$146,146$0$0$0$0$29,274$29,780
Median Male Income$114,583$44,955$90,458$91,791$0$93,690$97,330$0$0$0$0$0$0$0
Median Female Income$0$65,347$0$42,337$0$107,625$111,369$113,450$116,336$0$0$0$0$0
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:11143.02%
Unemployed:114.26%
Not In Labor Force:13652.71%
Total:258100%
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:109.01%
Service:109.01%
Sales and Office:3228.83%
Natural resources, construction, and maintenance:5953.15%
Production, transportation, and material moving:00.00%
Total Civilian Employed Population:111100%
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 $600,000, which is considerably higher than the national median ($332,700), is up $352,600 (142.52%) since 2011 and above its 2019 pre-pandemic level by $600,000. The median gross rent is $0, which is well under the national median ($1,413), is down $793 (100.00%) since 2011 and below its 2019 pre-pandemic level by $1,864. Of occupied housing, owners make up 56.19% (61.86% with a mortgage, 38.14% free-and-clear) and renters 43.81% - making this ZIP Code higher than national rental averages. The vacancy rate is 0.00%, which is considerably lower than the national rate (10.12%).

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$247,400$275,000$230,700$408,600$421,400$0$0$0$0$0$586,300$589,700$586,500$600,000
Source: U.S. Census 2011-2024 American Community Survey 5-Year Estimates. DP04. SELECTED HOUSING CHARACTERISTICS

Gross Rent Paid


Less than $500:00.00%
$500 to $999:00.00%
$1,000 to $1,499:00.00%
$1,500 to $1,999:00.00%
$2,000 to $2,499:00.00%
$2,500 to $2,999:00.00%
$3,000 or more:00.00%
No Rent:92100.00%
Total:92100%
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$793$786$893$914$924$1,125$1,555$1,863$1,864$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):7334.76%
Owner Occupied (free and clear, no mortgage):4521.43%
Renter Occupied:9243.81%
Total Occupied Housing Units:210100%

Occupied Housing Units:210100.00%
Vacant Housing Units (not graphed):00.00%
Total Housing Units:210100%
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:210100.00%
Multi-Family Units:00.00%
Other Units:00.00%
Total Housing Units:210100%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP04. SELECTED HOUSING CHARACTERISTICS

Education, Health & Community


In 2024, 27.90% 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 comparable to the national rate (89.60%). The uninsured rate is 18.90%, which is comparable to the national rate (8.40%). Public coverage is 70.30%, 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%). Poverty has been broadly stable, which may reflect structural barriers or offsetting gains and setbacks. Insufficient data for school enrollment.

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):4015.50%
Some college, no degree:6224.03%
Associate's degree:8432.56%
Bachelor's degree:3513.57%
Graduate or professional degree:3714.34%
Total:258100%
High school or higher:258100.00%
Bachelor's degree or higher:7227.91%
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:20944.19%
Public Insurance:20843.97%
No Insurance:5611.84%
Total:473100%
Has Health Insurance:41788.16%
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 Poverty0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%0.0%
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%
Kindergarten:00%
Elementary school (grades 1-8):00%
High school (grades 9-12):00%
College or graduate school:00%
Total:0100%
Early Childhood:00%
K-12 (Primary & Secondary School):00%
Source: U.S. Census 2020-2024 American Community Survey 5-Year Estimates. Table DP02. SELECTED SOCIAL CHARACTERISTICS

Business & Employment Statistics


ZIP Code 94569 supports both business and residential activity. According to the Business Census (2024), there are 3 business establishments, employing about 51 people with an annual payroll of $1,810,000.

# Residential Mailboxes:0Source: USPS
# Business Mailboxes:0Source: USPS
Total Delivery Receptacles:8,550Source: USPS
Single Family Delivery Units:0Source: USPS
Multi Family Delivery Units:0Source: USPS
# of Businesses:3Source: CBP
1st Quarter Payroll:$419,000Source: CBP
Annual Payroll:$1,810,000Source: CBP
# of Employees:51Source: CBP

Geography, Land Area, & Statistical Classifications


ZIP Code 94569 is located in Contra Costa County, California, within the San Francisco-Oakland-Fremont, CA Metropolitan Statistical Area (CBSA 41860) and California's 8th Congressional District. This Metro area has a population of 4,335,391 people, about 0.00% of whom live in ZIP Code 94569, and is subdivided into the Oakland-Fremont-Berkeley, CA division. It covers 1.286 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:Oakland-Fremont-Berkeley, CA (CBSA Div 36084)Source: Census
CBSA Population:4,335,391Source: Census
MSA:San Francisco-Oakland-San Jose, CA CMSASource: Census
Land Area:1.286 sq miSource: Census
Water Area:--Source: Census
Congressional District:08Source: USPS
Congressional Land Area:32867.21 sq miSource: Census
PMSA:Oakland, CA PMSASource: Census
Intro Date:< 2004-10Source: ZIP-Codes.com
Place FIPS Code:0658226Source: Census
Place Name:Port Costa CDP; CaliforniaSource: Census

Adjacent & Nearby ZIP Codes


94570 | | 94568

Schools in ZIP Code 94569


We could not locate which school district 94569 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.

Mary Farmar Elementary 901 Military West
Benicia, CA 94510
District: Benicia Unified School DistrictNearby
Benicia High 1101 Military West
Benicia, CA 94510
District: Benicia Unified School DistrictNearby
Benicia Middle 1100 Southampton Rd.
Benicia, CA 94510
District: Benicia Unified School DistrictNearby
Carquinez Middle 1099 Pomona St.
Crockett, CA 94525
District: John Swett Unified School DistrictNearby
John Swett High 1098 Pomona St.
Crockett, CA 94525
District: John Swett Unified School DistrictNearby
St Dominic Elementary School 935 E 5th St
Benicia, CA 94510
District: Private SchoolNearby
St Patrick-St Vincent High School 1500 Benicia Rd
Vallejo, CA 94591
District: Private SchoolNearby
St Catherine Of Siena School 604 Mellus St
Martinez, CA 94553
District: Private SchoolNearby

Colleges & Post Secondary Schools near ZIP Code 94569


California State University Maritime Academy 200 Maritime Academy Dr
Vallejo, CA 94590-8181
Type: Post Secondary
Contra Costa Community College District Office 500 Court St
Martinez, CA 94553
Type: Post Secondary
Touro University California 1310 Club Drive
Vallejo, CA 94592
Type: Post Secondary
Hinton Barber And Beauty College 1035 Tennessee St.
Vallejo, CA 94590
Type: Post Secondary
Diablo Valley College 321 Golf Club Rd
Pleasant Hill, CA 94523
Type: Post Secondary
Carrington College-Pleasant Hill Campus 380 Civic Drive, Suite 300
Pleasant Hill, CA 94523-1984
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 March 1, 2026.

  1. U.S. Postal Service [Last Updated: 3/1/2026], https://www.usps.com
  2. ZIP-Codes.com Proprietary Data Enhancements [Updated: 3/1/2026], 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: 3/1/2026], https://nces.ed.gov