Recreational - Vacant LandPublic Works
4TH ST
PORT COSTA, CA 94569
0
Baths
0.12 ac
Lot SizeThe size of the land the home sits on, from county records.
Tax & Assessment
Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$67 (2025)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$3,460 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$3,460
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$3,393
Climate Risk
Overall riskThe average of the five hazard scores below, on a 0 to 100 scale. Higher means greater projected risk over the coming decades.51
84
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
81
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
35
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
42
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
14
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.89 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
Scores 0–100; higher = greater projected risk.
Property Facts
Property TypeThe broad category the county puts this property in, such as residential or commercial.Recreational - Vacant Land
CountyCONTRA COSTA
Lot (acres)The size of the land the home sits on, from county records.0.12
PoolWhether the property has a pool, and what kind, such as in-ground.No
Transaction History(1)
Sales and refinances filed with the county for this home. Not every transfer is a normal sale, so check the type before comparing prices.Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.
MHE
Carquinez Middle SchoolD
Middle · Grades 6–8 · 1.9 mi
John Swett High SchoolB-
High · Grades 9–12 · 1.9 mi
Rodeo Hills ElementaryD
Elementary · Grades KG–5 · 4.5 mi
District: John Swett Unified School District
Neighborhood · ZIP 94569These are comparison scores, not percentages. 100 equals the national average, so 150 means about 50% above average.
CrimeLocal crime compared with the rest of the country, where 100 is average. It reflects things like population density, income, and how crime gets reported.146
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.87
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.365
Index scale: 100 = US average (tick). Lower is better.
Homes occupiedThe share of homes here that someone lives in. The rest sit empty, including vacation and for-sale homes.97%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.28%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.1%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.447
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.257 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$94,301
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$133,290
Average tempThe average temperature here across a full year.58°F
Annual precipHow much rain and melted snow falls here in a typical year.22 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.78%
Owner Tools
Do you own this home?
Claim this homeData by ATTOM. Valuations are automated estimates, not appraisals. Photos from Google Street View and may not depict the current property state.
How this home compares
4th St measured against every home in its neighborhood, its ZIP code and its county, using county assessor records refreshed nightly. A home can stand out in one of those areas and look ordinary in another, because each one holds a different mix of homes.
- Has a smaller lot than 67% of homes in Contra Costa County
How it measures up in Contra Costa County
The dot is this home. The mark in the middle is the typical home in Contra Costa County.
Lot size0.12 ac
SmallerTypical 0.15 acBigger
Bigger than 33% of homes nearby
| Measure | This home | Contra Costa County |
|---|---|---|
| Lot sizebigger than | 0.12 ac | 33% of homes |
About 4th St
When did 4th St, Port Costa, CA last sell?
4th St, Port Costa, CA last sold on Jan 1, 1900, according to the county's recorded deed.
What schools serve 4th St, Port Costa, CA?
4th St, Port Costa, CA is assigned to Carquinez Middle School (middle), rated D; John Swett High School (high), rated B-; Rodeo Hills Elementary (elementary), rated D. All sit in John Swett Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.
What are the property taxes on 4th St, Port Costa, CA?
The 2025 property tax bill for 4th St, Port Costa, CA was $67. The county assessed it at $3,460.
Closest homes
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More homes in Port Costa 94569
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- 145 Canyon Lake Dr$685K3 bd · 2 ba · 1,190 ft² · Sold $686K · Apr 2025
- 80 Canyon Lake Dr$839K4 bd · 3 ba · 2,529 ft² · Sold $840K · Feb 2025
- 15 Erskine St$350K3 bd · 1 ba · 2,064 ft² · Sold $350K · Oct 2024
- 9 Reservoir St$622K2 bd · 2 ba · 1,422 ft² · Sold $620K · Oct 2023
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Assigned schools
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