ZIP Code · CA

ZIP 91770

Part of Rosemead, CA

Pop. 58,382·Los Angeles County·474th most expensive ZIP in California

Median rent (all units)

$2,755/mo

Year-over-Year

+0.2%

Month-over-Month

-2.1%

vs US Median

+$823

Reported rents

Falling (Monthly)

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Most AffordableMost Expensive

ZIP 91770 · $2,755

More expensive than 86% of US ZIP codes · National median $1,932/mo

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Medians by bedroom

Rent by unit size

Studio

$1,630

1 BR

$1,820

2 BR

$2,270

3 BR

$2,880

4 BR+

$3,200

Research median

$2,270/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

Compared with the peak

Rent in ZIP 91770 is 2.9% below its high of $2,836 in July 2026, at $2,755 as of September 2026.

Past year vs. the rest of California

Rent in ZIP 91770 changed +0.2% 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 ($75,000) is $1,875 a month. That covers HUD's Fair Market Rent for up to a 1-bedroom ($1,820); a 2-bedroom is $2,270.

Cheaper nearby

ZIP 91733, 2 miles away, rents for 16% less ($2,324/mo), about $5,200 a year in savings.

From Zillow's monthly rent index (ZORI) for ZIP 91770. Income is the Census median household income (5-year estimates). Fair Market Rents are HUD’s, which include utilities.

Annual cost

$33,060/yr

At $2,755/mo median

Location

CityRosemead

StateCA

CountyLos Angeles County

Rent Market Meter

Renter's Market

Renter's MarketBalancedLandlord's Market

Rents are softening (up only 0.2% YoY), so renters have negotiating leverage.

Based on rent-price momentum (+0.2% YoY, -2.1% MoM), not inventory.

Demographics

Who lives here

ZIP 91770 (Rosemead, CA) is roughly split between renters and owners, has a large retiree population, 21.9% of residents hold a bachelor's degree or higher.

Population

58,382

Median income

$75,000

Median age

44.5

Renters

51%

Age distribution

17.1%

19.9%

27.5%

14.8%

20.7%

Under 1817.1%

18–3419.9%

35–5427.5%

55–6414.8%

65+20.7%

Gender

51.2%

48.8%

Male51.2%

Female48.8%

Race & ethnicity

28.7%

66.2%

White6.2%

Hispanic28.7%

Asian66.2%

Education (25+)

32.3%

26.5%

19.2%

21.9%

No HS diploma32.3%

HS diploma26.5%

Some college19.2%

Bachelor's+21.9%

Housing tenure

49%

51%

Owner49%

Renter51%

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

2023 vs 2026

How ZIP 91770 in Rosemead, CA has changed in 5 years

Rent

$2,251 → $2,755

up 22.4%

Income

$65,042 → $75,000

up 15.3%

Population

59,685 → 58,382

down 2.2%

Renter share

48.7% → 51%

+2.3 pts

Bachelor's+

22.9% → 21.9%

-1.0 pts

Median age

42.1 → 44.5

+2.4 yrs

Compared with 2023, rent in ZIP 91770 in Rosemead, CA has increased by $504 per month, settling near $2,755 after starting the period at $2,251. Median household income grew from $65,042 to $75,000 between 2021 and 2024, a 15.3% shift. Rent outpaced income growth by roughly 7.1 percentage points, which means renters are spending a larger slice of each paycheck on housing than they did in 2021. Headcount in the area went from 59,685 to 58,382 between 2021 and 2024, a 2.2% change. About 51% of households rent today, against 48.7% in 2021. Taken together, the five-year picture in ZIP 91770 in Rosemead, CA reflects how housing costs and the people paying them have evolved through a stretch that included a pandemic, a hot rental market, and a recent cooling phase.

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About renting in ZIP 91770

Last updated: October 17, 2026

ZIP code 91770 covers Rosemead, CA. The median rent here is $2,755/mo as of October 2026. A 1-bedroom rents for a median of $1,820/mo. A 2-bedroom rents for a median of $2,270/mo.

At 44% of local median household income ($75,000/yr), ZIP 91770 ranks as moderate compared to the national benchmark of 30%. Rents have increased 0.2% over the past year.

FAQ

Frequently asked questions

How much income do you need to rent in ZIP 91770?

To keep rent at or below 30% of gross income, you would need to earn at least $110,000/year (about $53/hour full-time) to afford the median rent of $2,755/mo in ZIP 91770. The local median household income is $75,000/yr, so the typical household falls short of that bar.

Is rent going up or down in ZIP 91770?

Rent in ZIP 91770 has been roughly flat over the past year as of September 2026, a +0.2% change. It sits 2.9% below its high of $2,836 in July 2026.

How does ZIP 91770 compare to other ZIPs in California?

ZIP 91770 is in the middle among California ZIP codes for rent, ranking #474 of 898 at $2,755/mo. Over the year to September 2026, rent in ZIP 91770 changed +0.2%, against a typical +3.2% across the 819 California ZIP codes Zillow tracks.