US ZIP Code
94598

Walnut Creek, CA

Contra Costa County  ·  California

● Active
👥 26,293 Population ↓ 6% since 2019
💰 $188,170 Median HH Income
▲ 147% above avg ↑ 22% since 2019
🎂 45.5 Median Age
🏠 $1,307,100 Median Home Value
▲ 369% above avg ↑ 37% since 2019
🎓 81.2% College Grads
▲ 110% above avg
📊 3.7% Unemployment
▼ 24% below avg ↓ 2% since 2019
ZIP Code Details
ZIP Code94598
CityWalnut Creek
StateCalifornia (CA)
CountyContra Costa County
Area Code341/369/510/707/925
Elevation329 ft
Latitude37.916916
Longitude-122.014917
TimezoneLos Angeles (DST)
FIPS06013
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 49.0% (12,891) Female 51.0% (13,402) ♀

Race & Ethnicity

White: 62.2%Hispanic: 10%Black: 1.9%Asian: 17.8%Other: 6.7%Race
White62.2%
Hispanic10.0%
Black1.9%
Asian17.8%
Other6.7%

Age Breakdown

Under 5
5%
5–17
15%
18–24
4%
25–44
25%
45–64
26%
65+
10%

Key Indicators

Median Age45.5 yrs
Avg Household Size2.46
Below Poverty5.1% ▼ 49% below avg
College Grads81.2% ▲ 110% above avg
Unemployment3.7% ▼ 24% below avg
No HS Diploma85 (0.5%)
HS Graduate1,398 (7.5%)
Some College523 (2.8%)
Associates1,500 (8.1%)
Bachelors1,383 (7.4%)
Graduate Degree13,737 (73.8%)

Education

No HS: 0.5%HS Grad: 7.5%Some College: 2.8%Associates: 8.1%Bachelors: 7.4%Graduate: 73.8%Edu
No HS0.5%
HS Grad7.5%
Some College2.8%
Associates8.1%
Bachelors7.4%
Graduate73.8%
Housing & Income

Housing Tenure

Owner: 76.1%Renter: 23.9%Tenure
Owner76.1%
Renter23.9%

Home Value Distribution

Under $50k
1%
$50k–100k
1%
$100k–150k
1%
$150k–200k
0%
$200k–300k
0%
$300k–500k
3%
Over $500k
94%

Financials

Median HH Income$188,170 ▲ 147% above avg ↑ 22% since 2019
Median Home Value$1,307,100 ▲ 369% above avg ↑ 37% since 2019
Home/Income Ratio6.9x (nat avg ~3.5x)
Median Rent$2,989/mo ↑ 15% since 2019
Total Units10,735
Vacant Units242
Avg HH Size2.46

Income Distribution

Under $25k
8%
$25k–50k
3%
$50k–75k
6%
$75k–100k
5%
$100k–150k
15%
$150k–200k
14%
Over $200k
48%
Employment & Commute

How People Get to Work

Drove Alone
52%
Public Transit
8%
Walked
3%
Work From Home
37%

Commute Time

Under 15 min
23%
15–30 min
30%
30–45 min
20%
Over 45 min
26%
Housing Stock

Year Built

Before 1940
1%
1940s–1950s
23%
1960s–1970s
21%
1980s–1990s
4%
2000+
51%

Summary

Total Units10,735
Vacant242
Owner Occupied76.1%
Renter Occupied23.9%
Avg HH Size2.46
Frequently Asked Questions
ZIP code 94598 is in Walnut Creek, CA, in Contra Costa County.
ZIP code 94598 is located in California (CA).
ZIP code 94598 is in Contra Costa County, CA.
ZIP 94598 observes the Los Angeles timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 94598 is 26,293 people (ACS 2023).
The median household income in ZIP code 94598 is $188,170 (ACS 2023).
The median home value in ZIP 94598 is $1,307,100 (ACS 2023).
About ZIP Code 94598

ZIP code 94598 is located in Walnut Creek, California, within Contra Costa County. With a population of 26,293, this is a moderately populated ZIP code with a mature community — the median age is 45.5 years. Economically, 94598 is a affluent ZIP code: the median household income of $188,170 is more than double the national average.

Real estate in ZIP code 94598 represents among the most expensive housing markets in the country. The median home value of $1,307,100 is more than double the national average. Renters can expect to pay around $2,989 per month in median rent. Homeownership is strong here — 76.1% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 37% since 2019.

The population of 94598 is majority White (62.24%). Residents are highly educated — 81.2% hold a bachelor's degree or higher, which is more than double the national average. Poverty affects a relatively small share of residents at 5.1%. Household income has grown by 22% since 2019.

The unemployment rate in 94598 stands at 3.7%, which is below the national average. A notably high share of workers — 34% — work from home, reflecting the professional makeup of the area. As in most parts of the country, driving alone is the dominant commute mode at 48%.

Overall, ZIP code 94598 in Walnut Creek, CA is characterized as affluent, highly educated, a mature community, and predominantly owner-occupied. With 26,293 residents, a median household income of $188,170, and a median home value of $1,307,100, it offers a clear picture of life in this part of California.