Hercules ZIP Code List — Contra Costa County, CA

There is one unique ZIP code in Hercules, California and it is 94547. Area code: 341/510.

ZIP codes

5.67

sq mi land

0.00

sq mi water

341/510

area code

Hercules, CA ZIP code map

About Hercules, CA

Hercules, California, is a charming city located in Contra Costa County. It is known for its picturesque views of the San Pablo Bay and vibrant community spirit. With a rich history and diverse population, Hercules offers a unique blend of suburban living and access to natural beauty.

Location & geography

Situated in the San Francisco Bay Area, Hercules lies approximately 20 miles northeast of San Francisco and around 10 miles from Richmond. The city encompasses a land area of 11.34 square miles, with a minimal water area of 0.01 square miles. Its terrain features the beautiful waterfront along the San Pablo Bay, providing residents and visitors with stunning views and recreational opportunities.

Community & economy

Hercules boasts a diverse community characterized by a strong sense of belonging and active participation. The city's economy traditionally relied on industries such as manufacturing and shipping, but it has diversified over the years to include retail and technology sectors. Daily life in Hercules is enhanced by local parks, recreational facilities, and a variety of community events that foster engagement among residents.

Transportation

Hercules is conveniently served by several major highways, including Interstate 80, which provides direct access to the Greater Bay Area. The nearest named airports include the Oakland International Airport and the San Francisco International Airport, both within reasonable driving distance. Public transit options are available through local bus services, connecting residents to nearby areas and cities.

History

Hercules was founded in the late 19th century, originally as a company town for the Hercules Powder Company, which produced explosives. Key industries included manufacturing and shipping, which laid the foundation for the city's growth. Over the years, Hercules transitioned into a residential community, witnessing notable events such as significant redevelopment projects that shaped its modern landscape.

Did you know?

One surprising fact about Hercules is that it was once known as a hub for the production of military explosives during World War II. Today, the city has transformed into a family-friendly location with a focus on community engagement and sustainability.

ZIP codes for Hercules, CA (1)

ZIP code	City	County	Map
94547	Hercules	Contra Costa	View map

Demographics & statistics

26,041

Population

42.6

Median age

$125,880

Median household income

$52,818

Per capita income

$690,000

Median home value

$2,759

Median monthly rent

80.0%

Home ownership

4.7%

Poverty rate

4.4%

Unemployment

7,504

Housing units

45.3%

Bachelor's or higher

Age distribution

Male Female

522

Under 5

586

814

5–9

914

780

10–14

876

584

15–19

656

692

20–24

776

1,440

25–34

1,616

1,764

35–44

1,979

1,543

45–54

1,731

1,039

55–59

1,166

924

60–64

1,038

1,410

65–74

1,583

589

75–84

660

169

85+

190

← Male

Female →

Age summary

Group	Count	%
Under 18	5,152	19.8%
18 and over	20,889	80.2%
65 and over	4,601	17.7%
Median age	42.6 years

Race & ethnicity

Asian 37.6%

White 20.2%

Black or African American 17.6%

Hispanic or Latino 9.8%

Two or more races 7.6%

Other race 6.2%

Native Hawaiian / Pacific Islander 0.9%

Group	Count	%
Asian	10,862	37.6%
White	5,833	20.2%
Black or African American	5,084	17.6%
Hispanic or Latino	2,817	9.8%
Two or more races	2,189	7.6%
Other race	1,797	6.2%
Native Hawaiian / Pacific Islander	269	0.9%

Household income

Under $10k 3.8%

$10k–$15k 3.1%

$15k–$25k 3.2%

$25k–$35k 1.7%

$35k–$50k 6.7%

$50k–$75k 10.6%

$75k–$100k 9.7%

$100k–$150k 21.1%

$150k–$200k 13.0%

$200k+ 27.1%

Range	% of households
Under $10k	3.8%
$10k–$15k	3.1%
$15k–$25k	3.2%
$25k–$35k	1.7%
$35k–$50k	6.7%
$50k–$75k	10.6%
$75k–$100k	9.7%
$100k–$150k	21.1%
$150k–$200k	13.0%
$200k+	27.1%
Median income	$125,880

Housing

Home values

Under $50k 2.3%

$50k–$100k 1.3%

$100k–$150k 0.3%

$200k–$300k 0.9%

$300k–$500k 20.0%

$500k–$1M 65.5%

$1M+ 9.8%

Housing overview

Metric	Value
Median home value	$690,000
Median rent / month	$2,759
Owner occupied	80.0%
Renter occupied	20.0%
Vacant	3.3%
Single-family detached	60.1%
Large apartment buildings	5.3%
Mobile homes	0.3%
Median rooms	6.2
Avg household size (owned)	2.94

Year built

Era	%
2020 or later	0.9%
2010–2019	3.8%
2000–2009	22.1%
1990–1999	13.0%
1980–1989	43.9%
1970–1979	15.0%
1960–1969	0.9%
1950–1959	0.0%
1940–1949	0.2%
1939 or earlier	0.2%

Bedrooms

Size	% of units
No bedroom (studio)	2.4%
1 bedroom	5.1%
2 bedrooms	22.7%
3 bedrooms	28.3%
4 bedrooms	32.4%
5+ bedrooms	9.0%

Vehicles per household

Vehicles	% of households
No vehicle	3.2%
1 vehicle	31.1%
2 vehicles	33.0%
3 or more	32.7%

Heating fuel

Fuel type	%
Utility gas	66.3%
Electricity	27.3%
Propane / LP gas	2.3%
Wood	0.4%
Solar	2.5%
No fuel used	1.2%

Households & families

Household type	Count	%
Married-couple family	5,025	55.9%
Cohabiting couple	345	3.8%
Male householder, no spouse	1,069	11.9%
Female householder, no spouse	2,551	28.4%
Households with children under 18	2,961	32.9%
Households with seniors (65+)	3,236	36.0%
Average household size	2.89

Marital status

Status	Male	Female
Never married	31.4%	30.3%
Married	61.7%	49.3%
Separated	0.9%	1.3%
Widowed	1.4%	6.1%
Divorced	4.6%	13.0%

Education

Less than 9th grade 5.4%

Some HS, no diploma 2.7%

HS graduate 14.4%

Some college, no degree 21.1%

Associate's degree 11.1%

Bachelor's degree 30.4%

Graduate / professional 14.9%

Metric	%
HS diploma or higher	91.9%
Bachelor's or higher	45.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	358	5.7%
Kindergarten	239	3.8%
Elementary school	2,540	40.3%
High school	1,128	17.9%
College / grad school	2,043	32.4%

Employment

Industry of employment

Education & healthcare 28.7%

Professional & management 11.9%

Retail trade 8.4%

Finance & real estate 8.4%

Transportation & utilities 8.1%

Public administration 7.5%

Arts, food & hospitality 7.1%

Manufacturing 6.1%

Construction 4.2%

Other services 4.1%

Information 2.3%

Wholesale trade 1.7%

Agriculture & mining 1.5%

Occupation

Category	%
Management, business & arts	50.3%
Service	11.8%
Sales & office	25.0%
Natural resources & construction	4.9%
Production & transportation	8.2%

Employment type

Type	%
Private sector	74.1%
Government	19.5%
Self-employed	6.3%
Unpaid family workers	0.1%

Commute

Method	%
Drive alone	64.8%
Carpool	8.4%
Public transit	9.4%
Walk	0.3%
Other means	1.9%
Avg commute (minutes)	40.4

Poverty

All people 4.7%

Under 18 years 1.6%

18 and over 5.5%

Married-couple families 1.7%

Female-led households 4.3%

Income support

Source	% of households
Social Security	32.2%
Retirement income	29.6%
Supplemental Security	4.8%
Cash public assistance	2.2%
Food stamps / SNAP	6.6%

Health indicators

Condition	%
High blood pressure	25.9%
High cholesterol	27.9%
Heart disease	4.0%
Stroke	2.2%
Asthma	8.3%
Arthritis	17.9%
Kidney disease	2.1%
Pulmonary disease	3.6%
Cancer	4.6%

Behavior / access	%
Binge drinking	14.4%
No physical activity	19.0%
Less than 7 hrs sleep	32.8%
Fair or poor health	10.8%
Poor mental health	11.5%
Poor physical health	7.3%
No health insurance	8.8%
Visited doctor (checkup)	66.4%
Visited dentist	69.7%
Cholesterol screening	92.2%
Teeth loss	6.6%

Veterans & disability

Veterans	Count	%
Civilian veterans	926	4.4%

Disability	%
Any disability	9.7%
Under 18	2.1%
18–64 years	7.2%
65 and over	26.8%

Health insurance coverage

Type	%
Private insurance	81.4%
Public insurance	29.2%
Uninsured under 19	1.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	24,933	95.7%
Spanish	3,466	13.9%
Other Indo-European	657	2.6%
Asian & Pacific Islander	1,003	4.0%
Other languages	1,643	6.6%

Place of birth & citizenship

Origin	Count	%
Native born (US)	17,627	67.7%
Born in same state	16,537	63.5%
Born in different state	14,025	53.9%
Foreign born	1,090	4.2%
Naturalized citizen	8,414	32.3%
Not a US citizen	6,566	78.0%

Ancestry

Ancestry	Count	%
Italian	665	2.6%
French	505	1.9%
Arab	377	1.4%
Polish	157	0.6%
Dutch	69	0.3%

Ancestry	Count	%
English	46	0.2%
Irish	32	0.1%
German	19	0.1%
Norwegian	16	0.1%

Technology access

Metric	% of households
Computer access	34.5%
Internet access	97.8%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions

What is the ZIP code for Hercules, CA?

Hercules, CA has one ZIP code: 94547.

What is the main ZIP code for Hercules, CA?

The primary ZIP code for Hercules, CA is 94547. The city uses area code 341 or 510 for phone service.

What county is Hercules, CA in?

Hercules is located in Contra Costa County, California.

How many ZIP codes are in Hercules, CA?

Hercules, CA has 1 ZIP code.

What is the ZIP code for downtown Hercules and the area around Hercules High School?

Downtown Hercules and Hercules High School are located in ZIP code 94547, which covers the central and main commercial areas of the city.

What ZIP code should I use for mailing addresses in the Hercules waterfront and refinery district areas?

The Hercules waterfront area and refinery industrial district both use ZIP code 94547, as it is the single ZIP code serving all of Hercules in Contra Costa County.