ZIP Code · CA

ZIP 91384

Part of Castaic, CA

Pop. 26,478·Los Angeles County·149th most expensive ZIP in California

Median rent (all units)

$3,650/mo

Year-over-Year

Stable

Month-over-Month

+2.1%

vs US Median

+$1,718

Reported rents

Rising (Monthly)

Be the first to discuss 91384 rents ↓

Most AffordableMost Expensive

ZIP 91384 · $3,650

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

Rent check

Is your rent fair?

Compare your rent to the local median.

Medians by bedroom

Rent by unit size

Studio

$1,810

1 BR

$2,030

2 BR

$2,530

3 BR

$3,210

4 BR+

$3,570

Research median

$2,530/mo

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

Rent trends

12-month history

Loading…

Last updated: September 25, 2026

From the history

What the numbers show

What a typical income covers

30% of the median household income ($131,689) is $3,292 a month. That covers HUD's Fair Market Rent for up to a 3-bedroom ($3,210); a 4-bedroom is $3,570.

Cheaper nearby

ZIP 91355, 6 miles away, rents for 22% less ($2,843/mo), about $9,700 a year in savings.

From Zillow's monthly rent index (ZORI) for ZIP 91384. Income is the Census median household income (5-year estimates). Fair Market Rents are HUD’s, which include utilities.

Annual cost

$43,800/yr

At $3,650/mo median

Location

CityCastaic

StateCA

CountyLos Angeles County

Rent Market Meter

Landlord's Market

Renter's MarketBalancedLandlord's Market

Rents are climbing (0.0% YoY), so leverage tilts toward landlords. Act sooner rather than later.

Based on rent-price momentum (+0.0% YoY, +2.1% MoM), not inventory.

Demographics

Who lives here

ZIP 91384 (Castaic, CA) is majority owner-occupied, has a median income above the national average, 32.3% of residents hold a bachelor's degree or higher.

Population

26,478

Median income

$131,689

Median age

35.8

Renters

15.9%

Age distribution

23.1%

25.6%

28.2%

12.6%

Under 1823.1%

18–3425.6%

35–5428.2%

55–6412.6%

65+10.5%

Gender

56.8%

43.2%

Male56.8%

Female43.2%

Race & ethnicity

47.5%

43.4%

White47.5%

Black5.2%

Hispanic43.4%

Asian8.1%

Education (25+)

16.3%

19.4%

32%

32.3%

No HS diploma16.3%

HS diploma19.4%

Some college32%

Bachelor's+32.3%

Housing tenure

84.1%

15.9%

Owner84.1%

Renter15.9%

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

2021 vs 2026

How ZIP 91384 in Castaic, CA has changed in 5 years

Income

$119,866 → $131,689

up 9.9%

Population

28,693 → 26,478

down 7.7%

Renter share

14% → 15.9%

+1.9 pts

Bachelor's+

29.6% → 32.3%

+2.7 pts

Median age

35 → 35.8

+0.8 yrs

Census figures show median household income at $131,689 today, compared with $119,866 five years earlier. Headcount in the area went from 28,693 to 26,478 between 2021 and 2024, a 7.7% change. About 15.9% of households rent today, against 14% in 2021. Educational attainment has shifted as well, with the share of adults holding a bachelor's degree or higher climbed from 29.6% to 32.3%.

Community

Discussions about ZIP 91384

No discussions yet. Start the conversation.

Local insights

Tips for renters in ZIP 91384

About renting in ZIP 91384

Last updated: September 25, 2026

ZIP code 91384 covers Castaic, CA. The median rent here is $3,650/mo as of September 2026. A 1-bedroom rents for a median of $2,030/mo. A 2-bedroom rents for a median of $2,530/mo.

At 33% of local median household income ($131,689/yr), ZIP 91384 ranks as moderate compared to the national benchmark of 30%. Rent prices have stayed steady over the past year.

FAQ

Frequently asked questions

How much income do you need to rent in ZIP 91384?

To keep rent at or below 30% of gross income, you would need to earn at least $146,000/year (about $70/hour full-time) to afford the median rent of $3,650/mo in ZIP 91384. The local median household income is $131,689/yr, so the typical household falls short of that bar.