Zip code 94505: Discovery Bay, California

Q: What city is zip code 94505?

94505 is assigned to Discovery Bay, California. The city name is the one the Postal Service prefers for mail addressed to this zip code.

Q: What county is 94505 in?

94505 is mostly in Contra Costa County, but it extends into 1 other county.

Q: What is the population of 94505?

About 14,970 people live in 94505, according to the Census Bureau's American Community Survey.

Q: What is the median household income in 94505?

The median household income in 94505 is $146,480.

Q: What zip codes are near 94505?

The closest zip codes to 94505 are 94514, 94513, 95391, 94548, 95208.

Residential delivery areaContra Costa CountyPacific Time

Population

14,970

Median household income

$146K

U.S. $81K

Median home value

$831K

U.S. $333K

Median rent

$3,029/mo

U.S. $1,413

Median age

45.8

U.S. 38.9

Land area

17 sq mi

898 people/sq mi

Boundary is the Census Bureau's ZIP Code Tabulation Area, which closely tracks the postal delivery area.

About 94505

94505 is a suburban zip code in Discovery Bay, California (Contra Costa County), covering 17 sq mi of land. About 14,970 people live here, or 898 per square mile. The median resident is 45.8 years old, compared with 38.9 nationally.

The median household earns $146,480 a year, 81% above the national median of $80,734. 7.4% of residents live below the poverty line (U.S.: 12.5%). A typical home is valued at $830,500, or 5.7 years of median household income (U.S.: 4.1 years), which makes homes relatively expensive for local earners. 90% of occupied homes are lived in by their owners, and renters pay a median of $3,029 a month.

33% of adults hold a bachelor's degree or higher (U.S.: 36%). Commuters average 44.1 minutes each way, and 22% of workers work from home. The most common jobs among working residents are in management; office and administrative support; and construction and repair.

How 94505 compares

Sorted from highest to lowest national percentile

Average commute44.1 min
99th
WeaknessU.S. 26.4 min · CA 28.7 min58th of 1,584 in CA
Rent-burdened renters75.9%
99th
WeaknessU.S. 51.1% · CA 55.3%103rd of 1,610 in CA
Median gross rent$3,029
98th
U.S. $1,413 · CA $2,036117th of 1,464 in CA
Broadband access98%
97th
StrengthU.S. 91% · CA 93.5%172nd of 1,662 in CA
Homeownership rate90.2%
96th
StrengthU.S. 65.2% · CA 55.9%95th of 1,662 in CA
Median household income$146,480
94th
StrengthU.S. $80,734 · CA $99,122218th of 1,575 in CA
Median earnings per worker$82,432
94th
StrengthU.S. $49,666 · CA $52,643229th of 1,658 in CA
Median home value$830,500
92nd
U.S. $332,700 · CA $734,700569th of 1,586 in CA
Unemployment rate8.6%
89th
WeaknessU.S. 5.2% · CA 6.6%407th of 1,681 in CA
Per capita income$64,094
88th
StrengthU.S. $44,673 · CA $49,513393rd of 1,685 in CA
Median age45.8
88th
U.S. 38.9 · CA 37.9420th of 1,687 in CA
Work from home22.3%
83rd
U.S. 15.1% · CA 17.2%494th of 1,680 in CA
Diversity index63.6
80th
U.S. 61.4 · CA 69.7449th of 1,688 in CA
Housing vacancy10.6%
74th
U.S. 10.1% · CA 7.5%555th of 1,664 in CA
Residents 65 and older19.2%
69th
U.S. 17.2% · CA 15.7%660th of 1,688 in CA
Government workers16.4%
68th
U.S. 14.5% · CA 14.8%698th of 1,678 in CA
Self-employed workers10%
59th
U.S. 10% · CA 11.4%1,019th of 1,678 in CA
Foreign-born residents12.2%
58th
U.S. 14.1% · CA 27%1,187th of 1,688 in CA
Veterans6.1%
54th
U.S. 6.2% · CA 4.3%525th of 1,686 in CA
Residents under 1822.5%
54th
U.S. 22% · CA 22%622nd of 1,688 in CA
Bachelor's degree or higher32.6%
52nd
U.S. 35.7% · CA 37.1%802nd of 1,687 in CA
Population density898/sq mi
42nd
U.S. 95/sq mi · CA 252/sq mi862nd of 1,688 in CA
Uninsured rate5.8%
41st
U.S. 8.4% · CA 6.6%738th of 1,675 in CA
Healthcare workers8.8%
39th
U.S. 9.7% · CA 9.4%834th of 1,678 in CA
Income inequality (Gini)0.417
34th
U.S. 0.483 · CA 0.4891,115th of 1,651 in CA
Poverty rate7.4%
28th
U.S. 12.5% · CA 12%1,187th of 1,666 in CA
Population14,970
23rd
U.S. 334,922,499 · CA 39,287,377903rd of 1,688 in CA
Tech workers1.2%
17th
U.S. 3.8% · CA 4.4%1,128th of 1,678 in CA

Measure	94505	Contra Costa	CA	U.S.	National percentile	Rank in CA
Average commuteWeakness	44.1 min	35.3 min	28.7 min	26.4 min	99th	58th of 1,584
Rent-burdened rentersWeakness	75.9%	56.1%	55.3%	51.1%	99th	103rd of 1,610
Median gross rent	$3,029	$2,375	$2,036	$1,413	98th	117th of 1,464
Broadband accessStrength	98%	95.6%	93.5%	91%	97th	172nd of 1,662
Homeownership rateStrength	90.2%	68%	55.9%	65.2%	96th	95th of 1,662
Median household incomeStrength	$146,480	$127,229	$99,122	$80,734	94th	218th of 1,575
Median earnings per workerStrength	$82,432	$67,204	$52,643	$49,666	94th	229th of 1,658
Median home value	$830,500	$866,800	$734,700	$332,700	92nd	569th of 1,586
Unemployment rateWeakness	8.6%	6.5%	6.6%	5.2%	89th	407th of 1,681
Per capita incomeStrength	$64,094	$62,927	$49,513	$44,673	88th	393rd of 1,685
Median age	45.8	40.5	37.9	38.9	88th	420th of 1,687
Work from home	22.3%	21.3%	17.2%	15.1%	83rd	494th of 1,680
Diversity index	63.6	73.3	69.7	61.4	80th	449th of 1,688
Housing vacancy	10.6%	3.5%	7.5%	10.1%	74th	555th of 1,664
Residents 65 and older	19.2%	17.1%	15.7%	17.2%	69th	660th of 1,688
Government workers	16.4%	14.6%	14.8%	14.5%	68th	698th of 1,678
Self-employed workers	10%	11.4%	11.4%	10%	59th	1,019th of 1,678
Foreign-born residents	12.2%	26.6%	27%	14.1%	58th	1,187th of 1,688
Veterans	6.1%	4.2%	4.3%	6.2%	54th	525th of 1,686
Residents under 18	22.5%	22%	22%	22%	54th	622nd of 1,688
Bachelor's degree or higher	32.6%	45.2%	37.1%	35.7%	52nd	802nd of 1,687
Population density	898/sq mi	1,625/sq mi	252/sq mi	95/sq mi	42nd	862nd of 1,688
Uninsured rate	5.8%	4.6%	6.6%	8.4%	41st	738th of 1,675
Healthcare workers	8.8%	9.2%	9.4%	9.7%	39th	834th of 1,678
Income inequality (Gini)	0.417	0.471	0.489	0.483	34th	1,115th of 1,651
Poverty rate	7.4%	8.4%	12%	12.5%	28th	1,187th of 1,666
Population	14,970	1,165,012	39,287,377	334,922,499	23rd	903rd of 1,688
Tech workers	1.2%	5.3%	4.4%	3.8%	17th	1,128th of 1,678

The percentile is the share of Americans who live in a zip code with a lower value, so the 50th percentile is typical. Rank 1 is the highest value in the state. Both include zip codes with at least 100 residents. Strengths and weaknesses mark measures in the best or worst fifth nationally, where higher or lower is clearly better (income, poverty, education, commute, broadband, insurance and similar). Measures like age or density are left unmarked.

People

Age

Under 5

19%

5–17

18–24

11%

25–34

10%

35–44

16%

45–54

16%

55–64

11%

65–74

75+

Median age

45.8

Under 18

22.5%

65 and over

19.2%

Race and ethnicity

White56%
Black8%
Hispanic19%
Asian7%
Native American0.1%
Pacific Islander0.5%
Other2%
Multiracial7%

Diversity index

63.6

U.S. 61.4

Foreign-born

12.2%

U.S. 14.1%

Born in state

67.1%

Language spoken at home (households)

English only

82%

Spanish

Other Indo-European

Asian / Pacific

Other

0.1%

Households

Households: 5,446
Average household size: 2.7
Family households: 74.7%
Married couples: 60.7%
Living alone: 19.4%
Veterans (of adults): 6.1%
Male / female: 49% / 51%

Income and poverty

Household income distribution

<$25k

10%

$25–50k

$50–75k

$75–100k

$100–150k

17%

$150–200k

14%

$200k+

35%

Median household income

94505

$146,480

Contra Costa Co.

$127,229

California

$99,122

United States

$80,734

Per capita income

$64,094

U.S. $44,673

Poverty rate

7.4%

U.S. 12.5%

Households earning $150K+

49.3%

U.S. 23%

Income inequality (Gini)

0.417

U.S. 0.483

Housing

Median home value

94505

$830,500

Contra Costa Co.

$866,800

California

$734,700

United States

$332,700

Median gross rent

94505

$3,029

Contra Costa Co.

$2,375

California

$2,036

United States

$1,413

Types of housing

Single-family

98%

2–4 units

0.1%

5–19 units

20+ units

Mobile home

0.0%

Boat, RV, van

0.0%

Housing units: 6,092
Owner-occupied: 90.2%
Vacant: 10.6%
Median year built: 1995
Median rooms: 6.7
Renters paying 30%+ of income: 75.9%
Renters paying 50%+ of income: 57.7%
Home value to income: 5.7× (U.S. 4.1×)

Work and commute

How people get to work

Drove alone

66%

Carpooled

Transit

0.2%

Walked

0.5%

Bicycle

Worked from home

22%

Other

Commute time (one way)

<10 min

10–19

17%

20–29

13%

30–44

24%

45–59

11%

60+

30%

Average commute

44.1 min

U.S. 26.4 min

Unemployment

8.6%

U.S. 5.2%

In labor force

60.1%

U.S. 63.5%

Jobs and careers

What employed residents do, wherever they work

Occupations

Management

20%

Office and admin

14%

Construction and repair

10%

Healthcare

Sales

Business and finance

Cleaning and personal care

Engineering and science

Legal and social services

Transportation and moving

Food service

Education

Police and fire

Arts, media and sports

Production

Computer and math

Farming, fishing and forestry

Industries

Construction

13%

Professional and technical services

12%

Health care and social assistance

11%

Retail

Transportation, warehousing and utilities

Public administration

Finance, insurance and real estate

Manufacturing

Admin, support and management

Education

Other services

Restaurants and hotels

Information

Wholesale

Agriculture and mining

0.8%

Arts and recreation

0.6%

Median earnings per worker

$82,432

U.S. $49,666

Self-employed

10%

U.S. 10%

Government workers

16.4%

U.S. 14.5%

Nonprofit workers

8.6%

U.S. 8.8%

Median earnings by type of work

Type of work	94505	U.S.
Management, business, science and arts	$109,275	$74,888
Service	$34,963	$26,804
Sales and office	$58,553	$40,476
Construction and maintenance	$127,656	$49,199
Production and transportation	$40,568	$39,989

Education, internet and health coverage

Highest education (adults 25+)

No diploma

High school

22%

Some college

27%

Associate's

13%

Bachelor's

21%

Graduate

12%

High school graduate or higher: 94.3%
Bachelor's degree or higher: 32.6%
Graduate or professional degree: 11.8%
Households with broadband: 98%
Cable, fiber or DSL: 89.1%
No internet access: 0.8%
Without health insurance: 5.8%
Limited-English households: 0.1%

Geography

City (USPS): Discovery Bay
State: California
County: Contra Costa County
Center point: 37.8713° N, 121.5970° W
Land area: 17 sq mi
Water area: 5.8 sq mi
Time zone: Pacific Time (UTC-8, UTC-7 in summer)
Zip type: Residential delivery area

94505 spans 2 counties

Contra Costa County96% of land
Alameda County4% of land

Cities and towns within this zip

Discovery Bay (unincorporated)33% of zip

Census places overlapping the zip's area. Mail may use a different city name than the municipality.

Zip codes near 94505

Search by radius

Zip	City	Distance	Population	IncomeMedian income	Home value
94514	Byron, CA	3.8 mi	1,953	$76,511	$735,600
94513	Brentwood, CA	6.1 mi	69,755	$142,223	$837,800
95391	Tracy, CA	6.3 mi	25,574	$176,952	$947,000
94548	Knightsen, CA	7.7 mi	832	$189,653	$959,900
95208	Stockton, CA · PO box	9.7 mi	—	—	—
94561	Oakley, CA	9.9 mi	46,368	$134,678	$659,800
95234	Holt, CA · PO box	10 mi	—	—	—
94511	Bethel Island, CA	11 mi	1,864	$74,972	$682,700
95206	Stockton, CA	11 mi	68,558	$83,432	$424,600
94531	Antioch, CA	12 mi	46,387	$120,927	$701,600
94551	Livermore, CA	12 mi	37,885	$145,392	$978,500
95219	Stockton, CA	12 mi	31,713	$112,268	$581,300

Zip codes like 94505 elsewhere

Matched on income, home values, age, density, education, housing and commuting

Questions about 94505

What city is zip code 94505?

94505 is assigned to Discovery Bay, California. The city name is the one the Postal Service prefers for mail addressed to this zip code.

What county is 94505 in?

94505 is mostly in Contra Costa County, but it extends into 1 other county.

What is the population of 94505?

About 14,970 people live in 94505, according to the Census Bureau's American Community Survey.

What time zone is 94505 in?

94505 is in Pacific Time.

What is the median household income in 94505?

The median household income in 94505 is $146,480.

What zip codes are near 94505?

The closest zip codes to 94505 are 94514, 94513, 95391, 94548, 95208.

Demographic figures are 2020–2024 American Community Survey 5-year estimates for ZIP Code Tabulation Area 94505, from the U.S. Census Bureau. Small areas have wide margins of error. How we build these numbers.