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ZIP Code · CA

ZIP 91765

Pop. 44,502·Los Angeles County·245th most expensive ZIP in California
Median rent (all units)
$3,285/mo
Year-over-Year
+6.5%
Month-over-Month
+0.2%
vs US Median
+$1,320
Stable (Monthly)
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Most AffordableMost Expensive
ZIP 91765 · $3,285
More expensive than 93% of US ZIP codes · National median $1,965/mo
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Medians by bedroom

Rent by unit size

Studio
$2,350
1 BR
$2,630
2 BR
$3,280
3 BR
$4,160
4 BR+
$4,630
Research median
$3,280/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: July 20, 2026

Annual cost
$39,420/yr
At $3,285/mo median
Location
StateCA
CountyLos Angeles County
Rent Market Meter
Strong Landlord's Market
Renter's MarketBalancedLandlord's Market
Rents are up 6.5% year-over-year. Expect competition, and move quickly to lock in terms.
Based on rent-price momentum (+6.5% YoY, +0.2% MoM), not inventory.
Demographics

Who lives here

ZIP 91765 (Diamond Bar, CA) is majority owner-occupied, has a large retiree population, has a median income above the national average, 53.7% of residents hold a bachelor's degree or higher.

Population
44,502
Median income
$105,565
Median age
46
Renters
22.5%
Age distribution
18.5%
18.3%
26.8%
14.6%
21.9%
Under 1818.5%
18–3418.3%
35–5426.8%
55–6414.6%
65+21.9%
Gender
47.7%
52.3%
Male47.7%
Female52.3%
Race & ethnicity
14.7%
17.3%
62.2%
White14.7%
Black3.5%
Hispanic17.3%
Asian62.2%
Other2.2%
Education (25+)
13.7%
24.6%
53.7%
No HS diploma7.9%
HS diploma13.7%
Some college24.6%
Bachelor's+53.7%
Housing tenure
77.5%
22.5%
Owner77.5%
Renter22.5%

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

2021 vs 2026

How ZIP 91765 in Diamond Bar, CA has changed in 5 years

Rent
$2,299 → $3,285
up 42.9%
Income
$99,705 → $105,565
up 5.9%
Population
46,270 → 44,502
down 3.8%
Renter share
22.1% → 22.5%
+0.4 pts
Bachelor's+
54.8% → 53.7%
-1.1 pts
Median age
44 → 46
+2.0 yrs

Rent in ZIP 91765 in Diamond Bar, CA has climbed 42.9% since 2021, going from about $2,299 per month to roughly $3,285 today. Median household income grew from $99,705 to $105,565 between 2021 and 2024, a 5.9% shift. Rent outpaced income growth by roughly 37.0 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 46,270 to 44,502 between 2021 and 2024, a 3.8% change. Taken together, the five-year picture in ZIP 91765 in Diamond Bar, 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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Local insights

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About renting in ZIP 91765

Last updated: July 20, 2026

ZIP code 91765 covers Diamond Bar, CA. The median rent here is $3,285/mo as of July 2026. A 1-bedroom rents for a median of $2,630/mo. A 2-bedroom rents for a median of $3,280/mo.

At 37% of local median household income ($105,565/yr), ZIP 91765 ranks as moderate compared to the national benchmark of 30%. Rents have increased 6.5% over the past year.

FAQ

Frequently asked questions

How much is rent in ZIP code 91765?

As of July 20, 2026, the median monthly rent in ZIP 91765 (Diamond Bar, CA) is $3,285. This is based on aggregated data from public sources and community submissions.

How does ZIP 91765 rent compare to the US average?

ZIP 91765's median rent of $3,285/mo is $1,320 (67%) above the US national median of $1,965/mo.

How does ZIP 91765 compare to other ZIPs in California?

ZIP 91765 is one of the pricier ZIP codes in California, ranking #245 out of 907 ZIPs tracked at $3,285/mo.

How much income do you need to rent in ZIP 91765?

To keep rent at or below 30% of gross income, you would need to earn at least $131,000/year (~$63/hour full-time) to afford the median rent of $3,285/mo in ZIP 91765. The local median household income is $105,565/yr, meaning the typical household falls short of that threshold.

Is rent going up or down in ZIP 91765?

Rent in ZIP 91765 has increased 6.5% over the past year as of July 20, 2026, putting upward pressure on renter budgets.

Is ZIP 91765 an affordable place to rent?

ZIP 91765 is considered moderate for renters. At $3,285/mo, rent takes approximately 37% of the local median household income ($105,565/yr). The standard benchmark is 30%. ZIP 91765 slightly exceeds that threshold, so budgeting carefully matters here.

What percentage of ZIP 91765 residents rent vs. own?

According to Census data, approximately 22.5% of ZIP 91765 households are renters, while 77.5% are owner-occupied. ZIP 91765 leans toward homeownership, which can mean a smaller rental inventory.

How does ZIP 91765 compare to the rest of Diamond Bar?

ZIP 91765 is more affordable than Diamond Bar overall. At $3,285/mo, it's $16 below the Diamond Bar citywide median of $3,301/mo.

When was rent data for ZIP 91765 last updated?

Rent data for ZIP 91765 reflects July 20, 2026. RentDataNow refreshes all data monthly using public and private datasets.
Income Affordability
37%
MODERATE

At $3,285/mo, rent takes ~37% of ZIP 91765's median household income ($105,565/yr). The standard benchmark is 30%.

ZIP 91765 37%Benchmark 30%
State income tax1–13.3%
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Public schools near ZIP 91765 (Diamond Bar, CA)

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