ZIP 94404
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12-month history
Last updated: October 17, 2026
What the numbers show
January. Asking rents in ZIP 94404 usually run 2.2% below trend in January and 2.3% above it in July, about $201 a month apart at today's median. Based on 9 years of data.
Rent in ZIP 94404 is at its highest level since Zillow's records here began in June 2017.
Rent in ZIP 94404 changed +12.2% over the year to September 2026. Across the 819 California ZIP codes Zillow tracks, the typical change was +3.2%.
From 2019 to 2024, rent in ZIP 94404 rose 9.7% while median household income rose 28.4% ($149,836 to $192,332). Income kept ahead of rent.
Rent in ZIP 94404 is 28.9% higher than in March 2020. Across the US, rent is up 37.3% over the same stretch.
Rent has risen 15 months in a row, and rose in 12 of the last 12 months.
30% of the median household income ($192,332) is $4,808 a month. That covers HUD's Fair Market Rent for up to a 1-bedroom ($4,140); a 2-bedroom is $5,010.
ZIP 94065, 2 miles away, rents for 11% less ($3,986/mo), about $5,800 a year in savings.
From Zillow's monthly rent index (ZORI) for ZIP 94404. 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.
Who lives here
ZIP 94404 (Foster City, CA) is roughly split between renters and owners, has a median income above the national average, 74.3% of residents hold a bachelor's degree or higher.
Source: U.S. Census Bureau · ACS 2024 5-Year Estimates
How ZIP 94404 in Foster City, CA has changed in 5 years
Across the past five years, the going rent in ZIP 94404 in Foster City, CA has shifted from $3,114 to $4,467, up 43.4% since 2021. Median household income climbed from $166,203 to $192,332 between 2021 and 2024, a 15.7% shift. Because rent grew faster than wages over the same span, the affordability picture has tightened relative to 2021. Census counts show ZIP 94404 in Foster City, CA losing about 690 residents over the five-year window, down 1.9% on net. The renter share has risen from 46.3% to 48.8%, with owner-occupied housing accounting for the remainder. Bachelor's-degree-or-higher attainment moved from 70.3% to 74.3% across the same window. Taken together, the five-year picture in ZIP 94404 in Foster City, 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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Tips for renters in ZIP 94404
Last updated: October 17, 2026
ZIP code 94404 covers Foster City, CA. The median rent here is $4,467/mo as of October 2026. A 1-bedroom rents for a median of $4,140/mo. A 2-bedroom rents for a median of $5,010/mo.
At 28% of local median household income ($192,332/yr), ZIP 94404 ranks as affordable compared to the national benchmark of 30%. Rents have increased 12.2% over the past year.
Frequently asked questions
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How does ZIP 94404 compare to the rest of Foster City?
At $4,467/mo, rent takes ~28% of ZIP 94404's median household income ($192,332/yr). The standard benchmark is 30%.
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