Walnut Creek, CA 94598 ZIP Code Profile

Related Place Profiles:
Walnut Creek, CA

Camera Icon Photos of the local Walnut Creek, CA area

ZIP Code 94598: Basic Data & USPS Preferred City Name

Preferred Name, USPS
Walnut Creek, CA 94598

  • ZIP Code Type: STANDARD
  • Businesses Addresses: 1,061
  • Single Family Addresses: 9,290
  • Multi-Family Addresses: 1,461
  • County: Contra Costa County
  • Centroid: Latitude 37.916, Longitude -122.024
  • Time Zone: Pacific Time Zone (UTC -8 hours)
  • Observes DST: Yes

Neighborhood Data

Address Based Hyperlocal Data Input an address and get data & demographics for the pertinent census block group (CBG), a searchable map and a customized directory. The CBG is the smallest geographical unit used by the Census Bureau for reporting certain data.


94598 ZIP Code Map

Search the map for:

Walnut Creek, CA 94598 Data & Demographics (As of July 1, 2017)


Total Population 27,431
Daytime Population: Workers 13,848
Daytime Population: Residents 14,294
Total Daytime Population (TDP) 28,142
Ratio TDP/Total Population1 1.03
Population in Households 27,164
Population in Familes 22,839
Population in Group Qrtrs 267
Population Density2 836
Diversity Index3 51


Median Household Income $128,969
Average Household Income $177,971
Per Capita Income $71,287


Total Housing Units 11,071 (100%)
Owner Occupied HU 8,441 (76.2%)
Renter Occupied HU 2,482 (22.4%)
Vacant Housing Units 148 ( 1.3%)
Median Home Value $822,535
Average Home Value $836,065


Total Households 10,923
Average Household Size 2.49
Family Households 7,687
Average Family Size 3
  1. If the ratio of the TDP to Total Population is greater than 1, the location gains population during the day when commuting workers are present. If the ratio is less than 1, the location is more of a bedroom community where people commute to another place for work.
  2. Population Density = Total Population per square mile.
  3. The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different race or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.


2010-2017 2017-2022
Population 0.67% 0.73%
Households 0.53% 0.65%
Families 0.52% 0.63%
Median Household Income   1.32%
Per Capita Income   1.67%

Walnut Creek, CA 94598 - Peer Comparisons by Rank and Percentile

The table below compares 94598 to the other 1,761 ZIP Codes in California by rank and percentile using July 1, 2017 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

Variable Description Rank Percentile
Total Population # 673 62nd
Population Density # 856 51st
Diversity Index # 1276 28th
Median Household Income # 65 96th
Per Capita Income # 91 95th

Additional comparisons and rankings can be made with a VERY EASY TO USE California Census Data Comparison Tool.

California Research Tools

California Census Data Comparison Tool

Compare California Census Data
Highest or Lowest: