ZIP Code · CA

ZIP 91321

Part of Santa Clarita, CA

Pop. 31,989·Los Angeles County·615th most expensive ZIP in California

Median rent (all units)

$2,498/mo

Year-over-Year

-0.5%

Month-over-Month

+0.1%

vs US Median

+$566

Reported rents

Stable (Monthly)

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Most AffordableMost Expensive

ZIP 91321 · $2,498

More expensive than 80% of US ZIP codes · National median $1,932/mo

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Medians by bedroom

Rent by unit size

Studio

$1,980

1 BR

$2,210

2 BR

$2,760

3 BR

$3,500

4 BR+

$3,900

Research median

$2,760/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

Cheapest month to sign

September. Asking rents in ZIP 91321 usually run 0.8% below trend in September and 1.4% above it in May, about $55 a month apart at today's median. Based on 5 years of data.

Compared with the peak

Rent in ZIP 91321 is 1.6% below its high of $2,539 in January 2026, at $2,498 as of September 2026.

Past year vs. the rest of California

Rent in ZIP 91321 changed -0.5% over the year to September 2026. Across the 819 California ZIP codes Zillow tracks, the typical change was +3.2%.

Recent direction

Rent rose in 7 of the last 12 months.

What a typical income covers

30% of the median household income ($91,092) is $2,277 a month. That covers HUD's Fair Market Rent for up to a 1-bedroom ($2,210); a 2-bedroom is $2,760.

Rank in Santa Clarita

1st cheapest of 6 ZIP codes in Santa Clarita.

From Zillow's monthly rent index (ZORI) for ZIP 91321. The seasonal pattern compares Zillow’s seasonally adjusted and unadjusted series. Income is the Census median household income (5-year estimates). Fair Market Rents are HUD’s, which include utilities.

Annual cost

$29,976/yr

At $2,498/mo median

Location

CitySanta Clarita

StateCA

CountyLos Angeles County

Rent Market Meter

Balanced Market

Renter's MarketBalancedLandlord's Market

Rents are roughly steady, with neither renters nor landlords holding a strong edge right now.

Based on rent-price momentum (-0.5% YoY, +0.1% MoM), not inventory.

Demographics

Who lives here

ZIP 91321 (Santa Clarita, CA) is majority owner-occupied, has a median income above the national average, 32.4% of residents hold a bachelor's degree or higher.

Population

31,989

Median income

$91,092

Median age

36.5

Renters

39.2%

Age distribution

24.4%

23.5%

25.9%

15.4%

Under 1824.4%

18–3423.5%

35–5425.9%

55–6410.8%

65+15.4%

Gender

48.3%

51.7%

Male48.3%

Female51.7%

Race & ethnicity

38.6%

52.9%

White38.6%

Black2.2%

Hispanic52.9%

Asian9%

Education (25+)

14%

22.5%

31.2%

32.4%

No HS diploma14%

HS diploma22.5%

Some college31.2%

Bachelor's+32.4%

Housing tenure

60.8%

39.2%

Owner60.8%

Renter39.2%

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

2021 vs 2026

How ZIP 91321 in Santa Clarita, CA has changed in 5 years

Rent

$1,968 → $2,498

up 26.9%

Income

$74,424 → $91,092

up 22.4%

Population

35,231 → 31,989

down 9.2%

Renter share

42.3% → 39.2%

-3.1 pts

Bachelor's+

26.2% → 32.4%

+6.2 pts

Median age

33.9 → 36.5

+2.6 yrs

Across the past five years, the going rent in ZIP 91321 in Santa Clarita, CA has shifted from $1,968 to $2,498, up 26.9% since 2021. Local incomes tracked alongside that move, going from a median of $74,424 in 2021 to $91,092 more recently. Because rent grew faster than wages over the same span, the affordability picture has tightened relative to 2021. Census counts show ZIP 91321 in Santa Clarita, CA losing about 3,242 residents over the five-year window, down 9.2% on net. The renter share has eased from 42.3% to 39.2%, with owner-occupied housing accounting for the remainder. Bachelor's-degree-or-higher attainment moved from 26.2% to 32.4% across the same window. These shifts give renters and would-be renters a longer baseline for sizing up today's listings against the ZIP 91321 in Santa Clarita, CA market of 2021.

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About renting in ZIP 91321

Last updated: October 17, 2026

ZIP code 91321 covers Santa Clarita, CA. The median rent here is $2,498/mo as of October 2026. A 1-bedroom rents for a median of $2,210/mo. A 2-bedroom rents for a median of $2,760/mo.

At 33% of local median household income ($91,092/yr), ZIP 91321 ranks as moderate compared to the national benchmark of 30%. Rents have decreased 0.5% over the past year.

FAQ

Frequently asked questions

How much income do you need to rent in ZIP 91321?

To keep rent at or below 30% of gross income, you would need to earn at least $100,000/year (about $48/hour full-time) to afford the median rent of $2,498/mo in ZIP 91321. The local median household income is $91,092/yr, so the typical household falls short of that bar.

Is rent going up or down in ZIP 91321?

Rent in ZIP 91321 has been roughly flat over the past year as of September 2026, a -0.5% change. It sits 1.6% below its high of $2,539 in January 2026.

When is the cheapest time to rent in ZIP 91321?

Asking rents in ZIP 91321 are usually lowest in September, about 0.8% below their yearly trend, and highest in May, about 1.4% above it. At today's median that is a gap of roughly $55 a month. This pattern comes from 5 years of Zillow rent data.

How does ZIP 91321 compare to other ZIPs in California?

ZIP 91321 is one of the more affordable among California ZIP codes for rent, ranking #615 of 898 at $2,498/mo. Over the year to September 2026, rent in ZIP 91321 changed -0.5%, against a typical +3.2% across the 819 California ZIP codes Zillow tracks.