ZIP Code · CA

ZIP 91901

Part of Alpine, CA
Pop. 18,197·San Diego County·714th most expensive ZIP in California
Median rent (all units)
$2,308/mo
Year-over-Year
+0.9%
Month-over-Month
+2.0%
vs US Median
+$343
Rising (Monthly)
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Most AffordableMost Expensive
ZIP 91901 · $2,308
More expensive than 73% of US ZIP codes · National median $1,965/mo
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Medians by bedroom

Rent by unit size

Studio
$2,160
1 BR
$2,320
2 BR
$2,830
3 BR
$3,770
4 BR+
$4,570
Research median
$2,830/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
$27,696/yr
At $2,308/mo median
Location
CityAlpine
StateCA
CountySan Diego County
Rent Market Meter
Landlord's Market
Renter's MarketBalancedLandlord's Market
Rents are climbing (0.9% YoY), so leverage tilts toward landlords. Act sooner rather than later.
Based on rent-price momentum (+0.9% YoY, +2.0% MoM), not inventory.
Demographics

Who lives here

ZIP 91901 (Alpine, CA) is majority owner-occupied, has a median income above the national average, 31.3% of residents hold a bachelor's degree or higher.

Population
18,197
Median income
$114,167
Median age
42.2
Renters
25.2%
Age distribution
20.1%
20.8%
27.3%
13.8%
18%
Under 1820.1%
18–3420.8%
35–5427.3%
55–6413.8%
65+18%
Gender
50.3%
49.7%
Male50.3%
Female49.7%
Race & ethnicity
77.5%
18.8%
White77.5%
Black1.9%
Hispanic18.8%
Asian1.1%
Other0.7%
Education (25+)
23.4%
39%
31.3%
No HS diploma6.3%
HS diploma23.4%
Some college39%
Bachelor's+31.3%
Housing tenure
74.8%
25.2%
Owner74.8%
Renter25.2%

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

2021 vs 2026

How ZIP 91901 in Alpine, CA has changed in 5 years

Income
$105,679 → $114,167
up 8.0%
Population
18,367 → 18,197
down 0.9%
Renter share
26.3% → 25.2%
-1.1 pts
Bachelor's+
33.5% → 31.3%
-2.2 pts

On the earnings side, the typical household in ZIP 91901 in Alpine, CA now reports about $114,167, up from $105,679 in 2021. College-educated residents now make up 31.3% of adults here, versus 33.5% in 2021.

Community

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Local insights

Tips for renters in ZIP 91901

About renting in ZIP 91901

Last updated: July 20, 2026

ZIP code 91901 covers Alpine, CA. The median rent here is $2,308/mo as of July 2026. A 1-bedroom rents for a median of $2,320/mo. A 2-bedroom rents for a median of $2,830/mo.

At 24% of local median household income ($114,167/yr), ZIP 91901 ranks as affordable compared to the national benchmark of 30%. Rents have increased 0.9% over the past year.

FAQ

Frequently asked questions

How much is rent in ZIP code 91901?

As of July 20, 2026, the median monthly rent in ZIP 91901 (Alpine, CA) is $2,308. This is based on aggregated data from public sources and community submissions.

How does ZIP 91901 rent compare to the US average?

ZIP 91901's median rent of $2,308/mo is $343 (17%) above the US national median of $1,965/mo.

How does ZIP 91901 compare to other ZIPs in California?

ZIP 91901 is among the more affordable ZIP codes in California, ranking #714 out of 907 ZIPs at $2,308/mo.

How much income do you need to rent in ZIP 91901?

To keep rent at or below 30% of gross income, you would need to earn at least $92,000/year (~$44/hour full-time) to afford the median rent of $2,308/mo in ZIP 91901. The local median household income is $114,167/yr, meaning the typical household meets that threshold.

Is rent going up or down in ZIP 91901?

Rent in ZIP 91901 has increased 0.9% over the past year as of July 20, 2026, putting upward pressure on renter budgets.

Is ZIP 91901 an affordable place to rent?

ZIP 91901 is considered very affordable for renters. At $2,308/mo, rent takes approximately 24% of the local median household income ($114,167/yr). The standard benchmark is 30%. ZIP 91901 falls comfortably within that range.

What percentage of ZIP 91901 residents rent vs. own?

According to Census data, approximately 25.2% of ZIP 91901 households are renters, while 74.8% are owner-occupied. ZIP 91901 leans toward homeownership, which can mean a smaller rental inventory.

How does ZIP 91901 compare to the rest of Alpine?

ZIP 91901 sits right at the Alpine citywide median of $2,308/mo.

When was rent data for ZIP 91901 last updated?

Rent data for ZIP 91901 reflects July 20, 2026. RentDataNow refreshes all data monthly using public and private datasets.
Income Affordability
24%
VERY AFFORDABLE

At $2,308/mo, rent takes ~24% of ZIP 91901's median household income ($114,167/yr). The standard benchmark is 30%.

ZIP 91901 24%Benchmark 30%
State income tax1–13.3%
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Schools nearby

Public schools near ZIP 91901 (Alpine, CA)

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