94597 ZIP Code — Walnut Creek, CA

Contra Costa County, California

ZIP code 94597 is located in Walnut Creek, California, within Contra Costa County. It covers approximately 4.05 square miles and serves a population of 23,654 residents. This is a standard ZIP code in the Pacific (PT) timezone, served by area code 925.

About ZIP code 94597

The housing stock consists of a significant share of large multi-unit buildings. Most homes were built in the 1980s, giving the area an established character. Median home value is $917,500. Owner-occupancy sits near the national average at 48%.

Median household income is $135,960. The poverty rate of 7% is below the national average.

The dominant occupation class is management, business, and professional, with professional and management as the leading industry. An above-average commute of 35 minutes suggests many residents work outside the immediate area. Remote work is prevalent — 22% of workers work from home.

Educational attainment is high — 67% of residents hold a bachelor's degree or higher, well above the national average of 33%.

Overall, ZIP code 94597 reflects a community defined by a highly educated population and a high rate of remote workers.

23,654

population

4.05

sq mi land

Standard

ZIP type

Pacific (PT)

timezone

94597 ZIP code map

Cities in ZIP code 94597

Below are the cities the US Postal Service accepts for ZIP code 94597. Using any city not on this list may result in mail delivery delays.

City	Status
Walnut Creek	Preferred

Nearby ZIP codes

94523 Pleasant Hill (2.5 mi) 94523 Pleasant Hill (2.5 mi) 94549 Lafayette (2.6 mi) 94549 Lafayette (2.6 mi) 94596 Walnut Creek (2.8 mi) 94596 Walnut Creek (2.8 mi) 94595 Walnut Creek (3.3 mi) 94595 Walnut Creek (3.3 mi) 94595 Walnut Creek (3.3 mi) 94595 Walnut Creek (3.3 mi) 94518 Concord (3.7 mi) 94518 Concord (3.7 mi)

Demographics updated 05/2026

Population
Total population	23,654
Population density	5,840 / sq mi
State FIPS	06
County FIPS	013

Geography
Land area	4.05 sq mi
Water area	0.00 sq mi
Latitude	37.9180
Longitude	-122.0735
Timezone	Pacific (PT)
Area code	925

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	23.5%	23.2%	32.6%
$50k – $100k	21.3%	25.1%	27.7%
$100k – $200k	34.0%	31.3%	26.4%
Over $200k	21.2%	20.4%	13.3%

Demographics & statistics

23,654

Population

5,840

People per sq mi

38.0

Median age

$135,960

Median household income

$70,754

Per capita income

$917,500

Median home value

$2,539

Median monthly rent

48.2%

Home ownership

7.1%

Poverty rate

5.7%

Unemployment

5,503

Housing units

66.5%

Bachelor's or higher

Age distribution

Male Female

704

Under 5

651

578

5–9

535

378

10–14

349

546

15–19

506

687

20–24

636

2,476

25–34

2,291

1,838

35–44

1,700

1,484

45–54

1,373

822

55–59

761

680

60–64

629

1,264

65–74

1,170

522

75–84

482

308

85+

284

← Male

Female →

Age summary

Group	Count	%
Under 18	3,965	16.8%
18 and over	19,689	83.2%
65 and over	4,030	17.0%
Median age	38.0 years

Race & ethnicity

White 52.2%

Asian 19.9%

Two or more races 10.7%

Hispanic or Latino 9.9%

Black or African American 3.9%

Other race 2.7%

American Indian / Alaska Native 0.5%

Native Hawaiian / Pacific Islander 0.3%

Group	Count	%
White	13,697	52.2%
Asian	5,235	19.9%
Two or more races	2,809	10.7%
Hispanic or Latino	2,598	9.9%
Black or African American	1,018	3.9%
Other race	696	2.7%
American Indian / Alaska Native	132	0.5%
Native Hawaiian / Pacific Islander	67	0.3%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	23.5%	23.2%	32.6%
$50k – $100k	21.3%	25.1%	27.7%
$100k – $200k	34.0%	31.3%	26.4%
Over $200k	21.2%	20.4%	13.3%

Under $10k 3.7%

$10k–$15k 1.8%

$15k–$25k 2.4%

$25k–$35k 3.0%

$35k–$50k 9.3%

$50k–$75k 10.0%

$75k–$100k 8.1%

$100k–$150k 16.5%

$150k–$200k 15.7%

$200k+ 29.4%

Range	% of households
Under $10k	3.7%
$10k–$15k	1.8%
$15k–$25k	2.4%
$25k–$35k	3.0%
$35k–$50k	9.3%
$50k–$75k	10.0%
$75k–$100k	8.1%
$100k–$150k	16.5%
$150k–$200k	15.7%
$200k+	29.4%
Median income	$135,960

Housing

Home values

$150k–$200k 0.2%

$200k–$300k 2.0%

$300k–$500k 6.1%

$500k–$1M 51.0%

$1M+ 40.7%

Housing overview

Metric	Value
Median home value	$917,500
Median rent / month	$2,539
Owner occupied	48.2%
Renter occupied	51.8%
Vacant	3.2%
Single-family detached	31.8%
Large apartment buildings	28.8%
Mobile homes	0.5%
Median rooms	4.3
Avg household size (owned)	2.30

Year built

Era	%
2020 or later	0.0%
2010–2019	7.7%
2000–2009	7.5%
1990–1999	13.7%
1980–1989	24.6%
1970–1979	17.9%
1960–1969	10.2%
1950–1959	9.8%
1940–1949	7.1%
1939 or earlier	1.3%

Bedrooms

Size	% of units
No bedroom (studio)	5.8%
1 bedroom	21.3%
2 bedrooms	33.6%
3 bedrooms	26.0%
4 bedrooms	11.0%
5+ bedrooms	2.3%

Vehicles per household

Vehicles	% of households
No vehicle	6.0%
1 vehicle	42.4%
2 vehicles	38.7%
3 or more	12.8%

Heating fuel

Fuel type	%
Utility gas	60.2%
Electricity	37.1%
Propane / LP gas	1.6%
Wood	0.1%
Solar	0.3%
No fuel used	0.3%

Households & families

Household type	Count	%
Married-couple family	4,507	42.2%
Cohabiting couple	1,158	10.8%
Male householder, no spouse	2,587	24.2%
Female householder, no spouse	2,439	22.8%
Households with children under 18	2,246	21.0%
Households with seniors (65+)	3,220	30.1%
Average household size	2.20

Marital status

Status	Male	Female
Never married	35.4%	34.3%
Married	48.0%	46.1%
Separated	2.4%	1.0%
Widowed	2.9%	4.8%
Divorced	11.4%	13.7%

Education

Less than 9th grade 1.5%

Some HS, no diploma 1.6%

HS graduate 9.1%

Some college, no degree 16.2%

Associate's degree 5.1%

Bachelor's degree 36.5%

Graduate / professional 30.0%

Metric	%
HS diploma or higher	96.9%
Bachelor's or higher	66.5%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	206	4.8%
Kindergarten	267	6.2%
Elementary school	1,417	32.9%
High school	920	21.4%
College / grad school	1,493	34.7%

Employment

Industry of employment

Professional & management 23.9%

Education & healthcare 19.8%

Retail trade 11.6%

Finance & real estate 11.0%

Arts, food & hospitality 6.5%

Transportation & utilities 6.3%

Manufacturing 5.4%

Public administration 5.0%

Information 3.5%

Construction 3.3%

Other services 2.7%

Wholesale trade 1.1%

Agriculture & mining 0.1%

Occupation

Category	%
Management, business & arts	63.5%
Service	11.5%
Sales & office	15.4%
Natural resources & construction	2.5%
Production & transportation	7.1%

Employment type

Type	%
Private sector	79.5%
Government	13.5%
Self-employed	6.7%
Unpaid family workers	0.3%

Commute

Method	%
Drive alone	48.1%
Carpool	8.2%
Public transit	17.2%
Walk	1.3%
Work from home	22.2%
Other means	3.0%
Avg commute (minutes)	35.2

Poverty

All people 7.1%

Under 18 years 11.6%

18 and over 6.2%

Married-couple families 3.0%

Female-led households 8.3%

Income support

Source	% of households
Social Security	25.4%
Retirement income	23.3%
Supplemental Security	2.7%
Cash public assistance	3.4%
Food stamps / SNAP	4.5%

Health indicators

Condition	%
Obesity	25.1%
High blood pressure	22.8%
High cholesterol	26.8%
Diabetes	6.8%
Heart disease	4.1%
Stroke	1.9%
Asthma	8.8%
Arthritis	18.9%
Kidney disease	2.1%
Pulmonary disease	3.8%
Cancer	6.0%

Behavior / access	%
Smoking	7.8%
Binge drinking	19.5%
No physical activity	13.5%
Less than 7 hrs sleep	28.2%
Depression	16.1%
Fair or poor health	8.5%
Poor mental health	12.1%
Poor physical health	6.9%
No health insurance	6.4%
Visited doctor (checkup)	64.4%
Visited dentist	75.9%
Cholesterol screening	92.5%
Teeth loss	5.6%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,084	5.5%

Disability	%
Any disability	10.3%
Under 18	4.5%
18–64 years	6.5%
65 and over	30.9%

Health insurance coverage

Type	%
Private insurance	82.6%
Public insurance	28.2%
No insurance	3.1%
Uninsured under 19	0.2%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	22,299	94.3%
Spanish	2,491	11.2%
Other Indo-European	375	1.7%
Asian & Pacific Islander	944	4.2%
Other languages	912	4.1%

Place of birth & citizenship

Origin	Count	%
Native born (US)	17,181	72.6%
Born in same state	16,622	70.3%
Born in different state	11,301	47.8%
Foreign born	559	2.4%
Naturalized citizen	6,473	27.4%
Not a US citizen	3,801	58.7%

Ancestry

Ancestry	Count	%
Italian	2,336	9.9%
French	2,304	9.7%
Arab	913	3.9%
Polish	303	1.3%
English	267	1.1%

Ancestry	Count	%
Dutch	153	0.6%
Irish	133	0.6%
German	110	0.5%
Norwegian	51	0.2%

Technology access

Metric	% of households
Computer access	45.2%
Internet access	99.4%

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

Frequently asked questions about ZIP code 94597

What city is ZIP code 94597 in?

ZIP code 94597 is primarily assigned to Walnut Creek, California.

What county is ZIP code 94597 in?

ZIP code 94597 falls within Contra Costa County, California.

How educated is the population of ZIP code 94597?

67% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

What is the median household income in ZIP code 94597?

The median household income in ZIP code 94597 is $135,960, above the national median of ~$75,000.

What is the typical home value in ZIP code 94597?

The median home value in ZIP code 94597 is $917,500.

What is the population of ZIP code 94597?

ZIP code 94597 has an estimated population of 23,654 residents, with a density of 5,836 people per square mile.

What timezone is ZIP code 94597 in?

ZIP code 94597 observes the PST timezone.