Alamo ZIP Code List — Contra Costa County, CA

There is one unique ZIP code in Alamo, California and it is 94507. Area code: 925.

ZIP codes

11.20

sq mi land

0.00

sq mi water

925

area code

Alamo, CA ZIP code map

About Alamo, CA

Alamo, California, is an unincorporated community located in Contra Costa County. Known for its suburban charm and picturesque landscapes, Alamo offers a serene living environment that attracts families and professionals alike. The city is characterized by spacious properties, beautiful parks, and a close-knit community atmosphere.

Location & geography

Geographically, Alamo is situated in the eastern part of the San Francisco Bay Area. It is bordered by cities like Walnut Creek, which lies about 4 miles to the northeast, Danville approximately 4 miles to the southeast, and San Ramon around 5 miles to the south. The area encompasses 11.20 square miles of land, with no significant bodies of water.

Community & economy

The community of Alamo is primarily residential, featuring a mix of executive homes and more modest single-family dwellings, which gives it a diverse character. Local industries mainly revolve around retail and service sectors, supporting both residents and surrounding areas. Daily life in Alamo reflects a suburban lifestyle with access to local parks, community events, and quality schools, contributing to a strong sense of community pride.

Transportation

Alamo is accessible via several major roadways, including Interstate 680, which connects the community to other parts of the Bay Area. The nearest named airport is the Buchanan Field Airport, located about 6 miles away in Concord. Public transit options are available through neighboring cities, offering various bus services.

History

Alamo was originally founded as a small agricultural community and has since transformed into a residential area while retaining some of its historical charm. The region was largely populated by ranchers and farmers, with notable events contributing to its growth, including the establishment of local schools and community buildings. Over the years, Alamo has maintained its appeal as a suburban retreat.

Did you know?

One surprising fact about Alamo is that it has managed to preserve a rural atmosphere despite being in proximity to larger urban centers. Additionally, the city's picturesque landscape includes many trails and parks that offer outdoor recreational opportunities for residents and visitors alike.

ZIP codes for Alamo, CA (1)

ZIP code	City	County	Map
94507	Alamo	Contra Costa	View map

Demographics & statistics

14,503

Population

50.8

Median age

$250,001

Median household income

$134,845

Per capita income

$2,000,000

Median home value

$3,501

Median monthly rent

91.9%

Home ownership

3.6%

Poverty rate

2.6%

Unemployment

4,971

Housing units

76.3%

Bachelor's or higher

Age distribution

Male Female

235

Under 5

229

388

5–9

377

530

10–14

515

560

15–19

544

363

20–24

353

314

25–34

305

618

35–44

600

1,112

45–54

1,081

716

55–59

695

677

60–64

657

939

65–74

913

696

75–84

676

208

85+

202

← Male

Female →

Age summary

Group	Count	%
Under 18	3,112	21.5%
18 and over	11,391	78.5%
65 and over	3,634	25.1%
Median age	50.8 years

Race & ethnicity

White 74.6%

Asian 11.6%

Two or more races 6.5%

Hispanic or Latino 4.2%

Other race 2.2%

Black or African American 1%

Group	Count	%
White	11,291	74.6%
Asian	1,748	11.6%
Two or more races	982	6.5%
Hispanic or Latino	628	4.2%
Other race	329	2.2%
Black or African American	152	1%

Household income

Under $10k 1.0%

$10k–$15k 0.7%

$15k–$25k 2.3%

$25k–$35k 2.0%

$35k–$50k 1.2%

$50k–$75k 3.9%

$75k–$100k 5.7%

$100k–$150k 8.8%

$150k–$200k 8.6%

$200k+ 65.9%

Range	% of households
Under $10k	1.0%
$10k–$15k	0.7%
$15k–$25k	2.3%
$25k–$35k	2.0%
$35k–$50k	1.2%
$50k–$75k	3.9%
$75k–$100k	5.7%
$100k–$150k	8.8%
$150k–$200k	8.6%
$200k+	65.9%
Median income	$250,001

Housing

Home values

Under $50k 0.5%

$100k–$150k 0.3%

$150k–$200k 0.4%

$300k–$500k 0.7%

$500k–$1M 4.3%

$1M+ 93.7%

Housing overview

Metric	Value
Median home value	$2,000,000
Median rent / month	$3,501
Owner occupied	91.9%
Renter occupied	8.1%
Vacant	6.9%
Single-family detached	92.7%
Large apartment buildings	1.9%
Mobile homes	0.2%
Median rooms	8.4
Avg household size (owned)	2.85

Year built

Era	%
2020 or later	0.0%
2010–2019	3.4%
2000–2009	11.2%
1990–1999	12.7%
1980–1989	16.2%
1970–1979	23.1%
1960–1969	12.2%
1950–1959	15.0%
1940–1949	3.9%
1939 or earlier	2.3%

Bedrooms

Size	% of units
No bedroom (studio)	0.6%
1 bedroom	1.0%
2 bedrooms	3.1%
3 bedrooms	21.9%
4 bedrooms	42.0%
5+ bedrooms	31.5%

Vehicles per household

Vehicles	% of households
No vehicle	2.0%
1 vehicle	12.2%
2 vehicles	38.8%
3 or more	47.1%

Heating fuel

Fuel type	%
Utility gas	79.3%
Electricity	16.3%
Propane / LP gas	1.4%
Wood	0.2%
Solar	2.8%

Households & families

Household type	Count	%
Married-couple family	4,095	81.8%
Cohabiting couple	158	3.2%
Male householder, no spouse	352	7.0%
Female householder, no spouse	402	8.0%
Households with children under 18	1,554	31.0%
Households with seniors (65+)	2,255	45.0%
Average household size	2.88

Marital status

Status	Male	Female
Never married	23.1%	21.0%
Married	71.0%	68.5%
Separated	1.2%	1.3%
Widowed	1.5%	4.0%
Divorced	3.1%	5.2%

Education

Less than 9th grade 0.4%

Some HS, no diploma 0.7%

HS graduate 6.0%

Some college, no degree 10.3%

Associate's degree 6.3%

Bachelor's degree 46.5%

Graduate / professional 29.8%

Metric	%
HS diploma or higher	98.9%
Bachelor's or higher	76.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	215	6.1%
Kindergarten	150	4.3%
Elementary school	1,455	41.5%
High school	1,091	31.2%
College / grad school	591	16.9%

Employment

Industry of employment

Professional & management 23.7%

Education & healthcare 20.0%

Finance & real estate 18.8%

Manufacturing 8.7%

Retail trade 7.5%

Construction 5.0%

Other services 4.0%

Transportation & utilities 3.1%

Public administration 2.8%

Arts, food & hospitality 2.6%

Information 2.5%

Wholesale trade 1.1%

Agriculture & mining 0.3%

Occupation

Category	%
Management, business & arts	70.7%
Service	6.6%
Sales & office	18.3%
Natural resources & construction	1.5%
Production & transportation	3.0%

Employment type

Type	%
Private sector	81.6%
Government	6.2%
Self-employed	12.0%
Unpaid family workers	0.2%

Commute

Method	%
Drive alone	58.0%
Carpool	7.4%
Public transit	4.4%
Walk	2.2%
Other means	0.5%
Avg commute (minutes)	30.7

Poverty

All people 3.6%

Under 18 years 0.1%

18 and over 4.5%

Married-couple families 1.6%

Female-led households 0.0%

Income support

Source	% of households
Social Security	37.7%
Retirement income	38.5%
Supplemental Security	6.5%
Cash public assistance	2.4%
Food stamps / SNAP	2.5%

Health indicators

Condition	%
High blood pressure	27.9%
High cholesterol	33.3%
Heart disease	5.5%
Stroke	2.3%
Asthma	8.7%
Arthritis	24.1%
Kidney disease	2.5%
Pulmonary disease	4.5%
Cancer	8.2%

Behavior / access	%
Binge drinking	17.0%
No physical activity	12.7%
Less than 7 hrs sleep	26.2%
Fair or poor health	8.6%
Poor mental health	10.5%
Poor physical health	7.5%
No health insurance	4.7%
Visited doctor (checkup)	69.3%
Visited dentist	80.2%
Cholesterol screening	95.6%
Teeth loss	4.6%

Veterans & disability

Veterans	Count	%
Civilian veterans	781	6.9%

Disability	%
Any disability	9.5%
Under 18	1.8%
18–64 years	6.4%
65 and over	22.8%

Health insurance coverage

Type	%
Private insurance	85.8%
Public insurance	31.5%
Uninsured under 19	3.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	14,039	96.8%
Spanish	411	2.9%
Other Indo-European	63	0.4%
Asian & Pacific Islander	86	0.6%
Other languages	262	1.9%

Place of birth & citizenship

Origin	Count	%
Native born (US)	12,484	86.1%
Born in same state	12,356	85.2%
Born in different state	7,956	54.9%
Foreign born	128	0.9%
Naturalized citizen	2,019	13.9%
Not a US citizen	1,369	67.8%

Ancestry

Ancestry	Count	%
French	1,663	11.5%
Italian	1,586	10.9%
Arab	818	5.6%
Dutch	409	2.8%
Polish	305	2.1%

Ancestry	Count	%
English	253	1.7%
German	43	0.3%
Irish	35	0.2%
Norwegian	31	0.2%

Technology access

Metric	% of households
Computer access	34.5%
Internet access	98.5%

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

Frequently asked questions

What is the ZIP code for Alamo, CA?

Alamo, CA has one ZIP code: 94507.

What is the main ZIP code for Alamo, CA?

The primary ZIP code for Alamo, CA is 94507. The city uses area code 925 for phone service.

What county is Alamo, CA in?

Alamo is located in Contra Costa County, California.

How many ZIP codes are in Alamo, CA?

Alamo, CA has 1 ZIP code.

What is the ZIP code for Alamo's central residential area near the Alamo Plaza shopping center?

The Alamo Plaza shopping center and surrounding residential neighborhoods are located in ZIP code 94507, which serves as the primary ZIP code for Alamo, California.

What ZIP code should I use for mailing addresses in Alamo near Stone Valley Road?

Addresses along Stone Valley Road and throughout Alamo use ZIP code 94507, which is the sole ZIP code serving this Contra Costa County community.