ZIP Code · CA

ZIP 94505

Part of Discovery Bay, CA

Pop. 14,970·Contra Costa County·165th most expensive ZIP in California

Median rent (all units)

$3,570/mo

Year-over-Year

-2.1%

Month-over-Month

-1.5%

vs US Median

+$1,638

Reported rents

Falling (Monthly)

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Most AffordableMost Expensive

ZIP 94505 · $3,570

More expensive than 96% of US ZIP codes · National median $1,932/mo

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Compare your rent to the local median.

Medians by bedroom

Rent by unit size

Studio

$2,690

1 BR

$3,000

2 BR

$3,660

3 BR

$4,680

4 BR+

$5,550

Research median

$3,660/mo

Bedroom estimates are gross rents that include essential utilities (electricity, water, gas, sewer, trash).

Rent trends

12-month history

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Last updated: October 17, 2026

From the history

What the numbers show

Past year vs. the rest of California

Rent in ZIP 94505 changed -2.1% over the year to September 2026. Across the 819 California ZIP codes Zillow tracks, the typical change was +3.2%.

Recent direction

Rent has fallen 2 months in a row, and rose in 6 of the last 12 months.

What a typical income covers

30% of the median household income ($146,480) is $3,662 a month. That covers HUD's Fair Market Rent for up to a 2-bedroom ($3,660); a 3-bedroom is $4,680.

Cheaper nearby

ZIP 95391, 7 miles away, rents for 15% less ($3,048/mo), about $6,300 a year in savings.

From Zillow's monthly rent index (ZORI) for ZIP 94505. Income is the Census median household income (5-year estimates). Fair Market Rents are HUD’s, which include utilities.

Annual cost

$42,840/yr

At $3,570/mo median

Location

CityDiscovery Bay

StateCA

CountyContra Costa County

Rent Market Meter

Renter's Market

Renter's MarketBalancedLandlord's Market

Rents are softening (down 2.1% YoY), so renters have negotiating leverage.

Based on rent-price momentum (-2.1% YoY, -1.5% MoM), not inventory.

Demographics

Who lives here

ZIP 94505 (Discovery Bay, CA) is majority owner-occupied, has a median income above the national average, 32.6% of residents hold a bachelor's degree or higher.

Population

14,970

Median income

$146,480

Median age

45.8

Renters

9.8%

Age distribution

22.5%

16.5%

26.2%

15.6%

19.2%

Under 1822.5%

18–3416.5%

35–5426.2%

55–6415.6%

65+19.2%

Gender

49.3%

50.7%

Male49.3%

Female50.7%

Race & ethnicity

59%

19.2%

White59%

Black8.9%

Hispanic19.2%

Asian6.9%

Other5.9%

Education (25+)

22.2%

39.5%

32.6%

No HS diploma5.7%

HS diploma22.2%

Some college39.5%

Bachelor's+32.6%

Housing tenure

90.2%

Owner90.2%

Renter9.8%

Source: U.S. Census Bureau · ACS 2024 5-Year Estimates

2021 vs 2026

How ZIP 94505 in Discovery Bay, CA has changed in 5 years

Income

$138,339 → $146,480

up 5.9%

Population

15,796 → 14,970

down 5.2%

Renter share

11.6% → 9.8%

-1.8 pts

Bachelor's+

32.2% → 32.6%

+0.4 pts

Median age

43.8 → 45.8

+2.0 yrs

Local incomes tracked alongside that move, going from a median of $138,339 in 2021 to $146,480 more recently. Census counts show ZIP 94505 in Discovery Bay, CA losing about 826 residents over the five-year window, down 5.2% on net. The renter share has eased from 11.6% to 9.8%, with owner-occupied housing accounting for the remainder.

Community

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Local insights

Tips for renters in ZIP 94505

About renting in ZIP 94505

Last updated: October 17, 2026

ZIP code 94505 covers Discovery Bay, CA. The median rent here is $3,570/mo as of October 2026. A 1-bedroom rents for a median of $3,000/mo. A 2-bedroom rents for a median of $3,660/mo.

At 29% of local median household income ($146,480/yr), ZIP 94505 ranks as affordable compared to the national benchmark of 30%. Rents have decreased 2.1% over the past year.

FAQ

Frequently asked questions

How much income do you need to rent in ZIP 94505?

To keep rent at or below 30% of gross income, you would need to earn at least $143,000/year (about $69/hour full-time) to afford the median rent of $3,570/mo in ZIP 94505. The local median household income is $146,480/yr, so the typical household meets that bar.

Is rent going up or down in ZIP 94505?

Rent in ZIP 94505 has fallen 2.1% over the past year.

How does ZIP 94505 compare to other ZIPs in California?

ZIP 94505 is one of the pricier among California ZIP codes for rent, ranking #165 of 898 at $3,570/mo. Over the year to September 2026, rent in ZIP 94505 changed -2.1%, against a typical +3.2% across the 819 California ZIP codes Zillow tracks.