Port Costa, CA
Full City Profile · California · Marin County County
2.5
/5.0
C+
Fair
194
Population
1,213/sq mi density
$586,500
Home Value
$664,856 Zillow
62°F
Avg Temperature
C+
Overall
2.5 / 5.0
Fair overall score based on economy, affordability, safety and education
C+
Education
2.5 / 5.0
19.1% bachelor's degree or higher
Housing Overview
Median Home Value
$586,500
108% above
US avg: $281,900
Homeownership Rate
35.4%
46% below US avg (65.4%)
Total Housing Units
171
Median year built: 1938
Home Value by Source
Census Median
$586,500
Zillow (ZHVI)
$664,856
Census ACS, Zillow ZHVI, Redfin median sale price
Ownership vs. Renting
35.4%
Owner-Occupied
64.6%
Renter-Occupied
US avg: 65.4% owner-occupied
Fair Market Rents (HUD FY2026)
Studio
$1,513/mo
1 Bedroom
$1,647/mo
2 Bedroom
$2,053/mo
3 Bedroom
$2,752/mo
4 Bedroom
$3,165/mo
Affordability & Housing Stock
Rent Burden
31.3%
of renters spending 30%+ of income on housing
1% above US avg (31.0%)
Median Year Built
1938
Average age of housing stock: 88 years
Homeownership Rate
35.4%
Complete Housing Data
Home Values
| Census Median Value | $586,500 |
| Zillow Home Value (ZHVI) | $664,856 |
Rent
| FMR Studio | $1,513 |
| FMR 1-Bedroom | $1,647 |
| FMR 2-Bedroom | $2,053 |
| FMR 3-Bedroom | $2,752 |
| FMR 4-Bedroom | $3,165 |
Market
Ownership & Stock
| Owner-Occupied | 35.4% |
| Renter-Occupied | 64.6% |
| Homeownership Rate | 35.4% |
| Total Housing Units | 171 |
| Median Year Built | 1938 |
| Rent Burden | 31.3% |