94523 ZIP Code — Pleasant Hill, CA
Contra Costa County, California
ZIP code 94523 is located in Pleasant Hill, California, within Contra Costa County. It covers approximately 7.21 square miles and serves a population of 34,964 residents. This is a po box ZIP code in the Pacific (PT) timezone, served by area code 925.
About ZIP code 94523
The housing stock consists of a mix of housing types. Most homes were built in the 1980s, giving the area an established character. Median home value is $959,200. Owner-occupancy sits near the national average at 63%.
Median household income is $136,787. The poverty rate of 6% is below the national average.
The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 32 minutes is near the national average.
Educational attainment is high — 56% of residents hold a bachelor's degree or higher, well above the national average of 33%.
34,964
population
7.21
sq mi land
PO Box
ZIP type
Pacific (PT)
timezone
94523 ZIP code map
Cities in ZIP code 94523
Below are the cities the US Postal Service accepts for ZIP code 94523. Using any city not on this list may result in mail delivery delays.
| City | Status |
|---|---|
| Pleasant Hill | Acceptable |
| Pleasant Hill | Preferred |
Nearby ZIP codes
94597 Walnut Creek (2.5 mi)
94597 Walnut Creek (2.5 mi)
94518 Concord (3 mi)
94529 Concord (3.1 mi)
94520 Concord (4.2 mi)
94553 Martinez (4.4 mi)
94549 Lafayette (4.7 mi)
94519 Concord (4.9 mi)
94596 Walnut Creek (4.9 mi)
94595 Walnut Creek (5.8 mi)
94595 Walnut Creek (5.8 mi)
94598 Walnut Creek (6 mi)
Demographics
updated 06/2026
| Population | |
|---|---|
| Total population | 34,964 |
| Population density | 4,849 / sq mi |
| State FIPS | 06 |
| County FIPS | 013 |
| Geography | |
|---|---|
| Land area | 7.21 sq mi |
| Water area | 0.00 sq mi |
| Latitude | 37.9538 |
| Longitude | -122.0778 |
| Timezone | Pacific (PT) |
| Area code | 925 |
Total population by age
Gender
Race & ethnicity
Economics
updated 06/2026
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 18.7% | 23.2% | 32.6% |
| $50k – $100k | 21.5% | 25.1% | 27.7% |
| $100k – $200k | 38.6% | 31.3% | 26.4% |
| Over $200k | 21.3% | 20.4% | 13.3% |
Demographics & statistics
34,964
Population
4,849
People per sq mi
42.1
Median age
$136,787
Median household income
$64,572
Per capita income
$959,200
Median home value
$2,400
Median monthly rent
63.4%
Home ownership
6.4%
Poverty rate
3.7%
Unemployment
9,540
Housing units
56.3%
Bachelor's or higher
Age distribution
Male
Female
866
Under 5
888
855
5–9
876
935
10–14
958
1,183
15–19
1,213
1,002
20–24
1,028
1,966
25–34
2,017
2,627
35–44
2,694
2,514
45–54
2,578
1,256
55–59
1,288
997
60–64
1,023
1,777
65–74
1,823
818
75–84
839
466
85+
477
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 6,870 | 19.6% |
| 18 and over | 28,094 | 80.4% |
| 65 and over | 6,200 | 17.7% |
| Median age | 42.1 years | |
Race & ethnicity
White
58.7%
Asian
15.7%
Two or more races
10.4%
Hispanic or Latino
7.7%
Black or African American
4%
Other race
2.7%
Native Hawaiian / Pacific Islander
0.6%
American Indian / Alaska Native
0.3%
| Group | Count | % |
|---|---|---|
| White | 22,213 | 58.7% |
| Asian | 5,936 | 15.7% |
| Two or more races | 3,941 | 10.4% |
| Hispanic or Latino | 2,898 | 7.7% |
| Black or African American | 1,505 | 4% |
| Other race | 1,029 | 2.7% |
| Native Hawaiian / Pacific Islander | 239 | 0.6% |
| American Indian / Alaska Native | 101 | 0.3% |
Household income
| Income range | This ZIP | County avg | State avg |
|---|---|---|---|
| Under $50k | 18.7% | 23.2% | 32.6% |
| $50k – $100k | 21.5% | 25.1% | 27.7% |
| $100k – $200k | 38.6% | 31.3% | 26.4% |
| Over $200k | 21.3% | 20.4% | 13.3% |
Under $10k
4.1%
$10k–$15k
0.9%
$15k–$25k
3.6%
$25k–$35k
2.9%
$35k–$50k
5.4%
$50k–$75k
9.4%
$75k–$100k
10.0%
$100k–$150k
17.8%
$150k–$200k
17.4%
$200k+
28.5%
| Range | % of households |
|---|---|
| Under $10k | 4.1% |
| $10k–$15k | 0.9% |
| $15k–$25k | 3.6% |
| $25k–$35k | 2.9% |
| $35k–$50k | 5.4% |
| $50k–$75k | 9.4% |
| $75k–$100k | 10.0% |
| $100k–$150k | 17.8% |
| $150k–$200k | 17.4% |
| $200k+ | 28.5% |
| Median income | $136,787 |
Housing
Home values
Under $50k
0.3%
$50k–$100k
0.8%
$100k–$150k
1.1%
$150k–$200k
0.1%
$200k–$300k
0.1%
$300k–$500k
3.1%
$500k–$1M
50.1%
$1M+
44.4%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $959,200 |
| Median rent / month | $2,400 |
| Owner occupied | 63.4% |
| Renter occupied | 36.6% |
| Vacant | 4.3% |
| Single-family detached | 59.3% |
| Large apartment buildings | 16.3% |
| Mobile homes | 0.3% |
| Median rooms | 5.4 |
| Avg household size (owned) | 2.58 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.1% |
| 2010–2019 | 2.7% |
| 2000–2009 | 4.2% |
| 1990–1999 | 8.1% |
| 1980–1989 | 22.6% |
| 1970–1979 | 14.6% |
| 1960–1969 | 14.9% |
| 1950–1959 | 20.6% |
| 1940–1949 | 10.0% |
| 1939 or earlier | 2.2% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 5.0% |
| 1 bedroom | 11.4% |
| 2 bedrooms | 19.9% |
| 3 bedrooms | 40.6% |
| 4 bedrooms | 18.0% |
| 5+ bedrooms | 5.0% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 6.3% |
| 1 vehicle | 31.0% |
| 2 vehicles | 38.1% |
| 3 or more | 24.6% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 61.0% |
| Electricity | 34.5% |
| Propane / LP gas | 1.8% |
| Fuel oil | 0.1% |
| Wood | 0.7% |
| Solar | 1.4% |
| No fuel used | 0.3% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 6,869 | 48.9% |
| Cohabiting couple | 849 | 6.0% |
| Male householder, no spouse | 2,551 | 18.1% |
| Female householder, no spouse | 3,787 | 26.9% |
| Households with children under 18 | 4,541 | 32.3% |
| Households with seniors (65+) | 4,522 | 32.2% |
| Average household size | 2.45 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 37.3% | 28.2% |
| Married | 52.3% | 48.2% |
| Separated | 0.7% | 1.3% |
| Widowed | 1.9% | 6.1% |
| Divorced | 7.8% | 16.3% |
Education
Less than 9th grade
2.9%
Some HS, no diploma
2.2%
HS graduate
11.6%
Some college, no degree
18.6%
Associate's degree
8.4%
Bachelor's degree
35.1%
Graduate / professional
21.2%
| Metric | % |
|---|---|
| HS diploma or higher | 94.9% |
| Bachelor's or higher | 56.3% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 498 | 5.9% |
| Kindergarten | 312 | 3.7% |
| Elementary school | 2,984 | 35.3% |
| High school | 1,671 | 19.7% |
| College / grad school | 2,999 | 35.4% |
Employment
Industry of employment
Education & healthcare
27.0%
Professional & management
17.3%
Retail trade
10.3%
Arts, food & hospitality
9.3%
Finance & real estate
7.1%
Construction
6.4%
Transportation & utilities
5.0%
Manufacturing
4.6%
Public administration
4.5%
Other services
4.1%
Wholesale trade
2.1%
Information
1.8%
Agriculture & mining
0.5%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 58.2% |
| Service | 13.9% |
| Sales & office | 17.5% |
| Natural resources & construction | 4.7% |
| Production & transportation | 5.6% |
Employment type
| Type | % |
|---|---|
| Private sector | 78.0% |
| Government | 13.8% |
| Self-employed | 8.2% |
| Unpaid family workers | 0.0% |
Commute
| Method | % |
|---|---|
| Drive alone | 59.3% |
| Carpool | 9.3% |
| Public transit | 7.8% |
| Walk | 2.0% |
| Work from home | 18.7% |
| Other means | 3.0% |
| Avg commute (minutes) | 32.3 |
Poverty
All people
6.4%
Under 18 years
9.1%
18 and over
5.8%
Married-couple families
2.2%
Female-led households
15.6%
Income support
| Source | % of households |
|---|---|
| Social Security | 27.6% |
| Retirement income | 27.2% |
| Supplemental Security | 3.3% |
| Cash public assistance | 1.2% |
| Food stamps / SNAP | 2.6% |
Health indicators
| Condition | % |
|---|---|
| Obesity | 25.8% |
| High blood pressure | 24.5% |
| High cholesterol | 28.3% |
| Diabetes | 7.5% |
| Heart disease | 4.7% |
| Stroke | 2.2% |
| Asthma | 9.0% |
| Arthritis | 20.6% |
| Kidney disease | 2.3% |
| Pulmonary disease | 4.5% |
| Cancer | 6.4% |
| Behavior / access | % |
|---|---|
| Smoking | 8.7% |
| Binge drinking | 18.6% |
| No physical activity | 15.0% |
| Less than 7 hrs sleep | 28.8% |
| Depression | 16.3% |
| Fair or poor health | 9.6% |
| Poor mental health | 12.4% |
| Poor physical health | 7.7% |
| No health insurance | 7.1% |
| Visited doctor (checkup) | 65.4% |
| Visited dentist | 74.6% |
| Cholesterol screening | 92.2% |
| Teeth loss | 6.5% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 1,044 | 3.7% |
| Disability | % |
|---|---|
| Any disability | 12.2% |
| Under 18 | 3.5% |
| 18–64 years | 9.0% |
| 65 and over | 33.6% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 84.6% |
| Public insurance | 25.4% |
| No insurance | 3.6% |
| Uninsured under 19 | 3.3% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 33,210 | 95.0% |
| Spanish | 2,498 | 7.5% |
| Other Indo-European | 363 | 1.1% |
| Asian & Pacific Islander | 586 | 1.8% |
| Other languages | 1,487 | 4.5% |
Place of birth & citizenship
| Origin | Count | % |
|---|---|---|
| Native born (US) | 28,205 | 80.7% |
| Born in same state | 27,601 | 78.9% |
| Born in different state | 20,687 | 59.2% |
| Foreign born | 604 | 1.7% |
| Naturalized citizen | 6,759 | 19.3% |
| Not a US citizen | 4,426 | 65.5% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| French | 4,501 | 12.9% |
| Italian | 4,210 | 12% |
| Arab | 970 | 2.8% |
| Polish | 620 | 1.8% |
| Dutch | 441 | 1.3% |
| Ancestry | Count | % |
|---|---|---|
| German | 253 | 0.7% |
| English | 238 | 0.7% |
| Irish | 173 | 0.5% |
| Norwegian | 96 | 0.3% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 40.2% |
| Internet access | 95.7% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
Frequently asked questions about ZIP code 94523
What city is ZIP code 94523 in?
ZIP code 94523 is primarily assigned to Pleasant Hill, California.
What county is ZIP code 94523 in?
ZIP code 94523 falls within Contra Costa County, California.
How educated is the population of ZIP code 94523?
56% 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 94523?
The median household income in ZIP code 94523 is $136,787, above the national median of ~$75,000.
What is the typical home value in ZIP code 94523?
The median home value in ZIP code 94523 is $959,200.
What is the population of ZIP code 94523?
ZIP code 94523 has an estimated population of 34,964 residents, with a density of 4,852 people per square mile.
What timezone is ZIP code 94523 in?
ZIP code 94523 observes the PST timezone.