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ZIP Code · CA

ZIP 94402

Pop. 25,475·San Mateo County·119th most expensive ZIP in California
Median rent (all units)
$3,862/mo
Year-over-Year
+10.3%
Month-over-Month
+3.6%
vs US Median
+$1,897
Rising (Monthly)
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Most AffordableMost Expensive
ZIP 94402 · $3,862
More expensive than 97% of US ZIP codes · National median $1,965/mo
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Medians by bedroom

Rent by unit size

Studio
$3,120
1 BR
$3,730
2 BR
$4,520
3 BR
$5,770
4 BR+
$5,980
Research median
$4,520/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
$46,344/yr
At $3,862/mo median
Location
StateCA
CountySan Mateo County
Rent Market Meter
Strong Landlord's Market
Renter's MarketBalancedLandlord's Market
Rents are up 10.3% year-over-year. Expect competition, and move quickly to lock in terms.
Based on rent-price momentum (+10.3% YoY, +3.6% MoM), not inventory.
Demographics

Who lives here

ZIP 94402 (San Mateo, CA) is majority owner-occupied, has a median income above the national average, 68.6% of residents hold a bachelor's degree or higher.

Population
25,475
Median income
$172,522
Median age
40.8
Renters
41.6%
Age distribution
21.9%
19.7%
26.9%
19.9%
Under 1821.9%
18–3419.7%
35–5426.9%
55–6411.6%
65+19.9%
Gender
47%
53%
Male47%
Female53%
Race & ethnicity
48.9%
15.7%
29%
White48.9%
Black1.1%
Hispanic15.7%
Asian29%
Other5.3%
Education (25+)
16.5%
68.6%
No HS diploma4.1%
HS diploma10.7%
Some college16.5%
Bachelor's+68.6%
Housing tenure
58.4%
41.6%
Owner58.4%
Renter41.6%

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

2021 vs 2026

How ZIP 94402 in San Mateo, CA has changed in 5 years

Rent
$2,995 → $3,862
up 28.9%
Income
$170,688 → $172,522
up 1.1%
Population
27,188 → 25,475
down 6.3%
Renter share
36.9% → 41.6%
+4.7 pts
Bachelor's+
68% → 68.6%
+0.6 pts
Median age
40.1 → 40.8
+0.7 yrs

The median rent in ZIP 94402 in San Mateo, CA stood at $2,995 in 2021 and currently runs about $3,862, reflecting a 28.9% increase over the period. On the earnings side, the typical household in ZIP 94402 in San Mateo, CA now reports about $172,522, up from $170,688 in 2021. That spread, with rent up faster than earnings, points to a tougher affordability environment than five years ago. The population has contracted by 6.3% since 2021, moving from about 27,188 residents to roughly 25,475. Renters now make up 41.6% of households, compared with 36.9% five years ago. For context, the 2021 to 2026 window covers an unusually volatile run for US rents nationally, and ZIP 94402 in San Mateo, CA reflects that arc in its own way.

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Local insights

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About renting in ZIP 94402

Last updated: July 20, 2026

ZIP code 94402 covers San Mateo, CA. The median rent here is $3,862/mo as of July 2026. A 1-bedroom rents for a median of $3,730/mo. A 2-bedroom rents for a median of $4,520/mo.

At 27% of local median household income ($172,522/yr), ZIP 94402 ranks as affordable compared to the national benchmark of 30%. Rents have increased 10.3% over the past year.

FAQ

Frequently asked questions

How much is rent in ZIP code 94402?

As of July 20, 2026, the median monthly rent in ZIP 94402 (San Mateo, CA) is $3,862. This is based on aggregated data from public sources and community submissions.

How does ZIP 94402 rent compare to the US average?

ZIP 94402's median rent of $3,862/mo is $1,897 (97%) above the US national median of $1,965/mo.

How does ZIP 94402 compare to other ZIPs in California?

ZIP 94402 is one of the pricier ZIP codes in California, ranking #119 out of 907 ZIPs tracked at $3,862/mo.

How much income do you need to rent in ZIP 94402?

To keep rent at or below 30% of gross income, you would need to earn at least $154,000/year (~$74/hour full-time) to afford the median rent of $3,862/mo in ZIP 94402. The local median household income is $172,522/yr, meaning the typical household meets that threshold.

Is rent going up or down in ZIP 94402?

Rent in ZIP 94402 has increased 10.3% over the past year as of July 20, 2026, putting upward pressure on renter budgets.

Is ZIP 94402 an affordable place to rent?

ZIP 94402 is considered affordable for renters. At $3,862/mo, rent takes approximately 27% of the local median household income ($172,522/yr). The standard benchmark is 30%. ZIP 94402 falls comfortably within that range.

What percentage of ZIP 94402 residents rent vs. own?

According to Census data, approximately 41.6% of ZIP 94402 households are renters, while 58.4% are owner-occupied. ZIP 94402 leans toward homeownership, which can mean a smaller rental inventory.

How does ZIP 94402 compare to the rest of San Mateo?

ZIP 94402 is pricier than San Mateo as a whole. At $3,862/mo, it's $195 above the San Mateo citywide median of $3,667/mo.

When was rent data for ZIP 94402 last updated?

Rent data for ZIP 94402 reflects July 20, 2026. RentDataNow refreshes all data monthly using public and private datasets.
Income Affordability
27%
AFFORDABLE

At $3,862/mo, rent takes ~27% of ZIP 94402's median household income ($172,522/yr). The standard benchmark is 30%.

ZIP 94402 27%Benchmark 30%
State income tax1–13.3%
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