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Duplex (2 Units, Any Combination)Residential
Last sold for $550,000 on Oct 23, 2024

640 WILLIAM ST

WEST SACRAMENTO, CA 95605
4
Beds
2
Baths
1,696 ft²
Living AreaTotal finished area of the structures, from county records. Some counties include shared space like hallways or a building gym, so it may not match a listing.
4,000 ft²
Lot SizeThe size of the land the home sits on, from county records.
1978
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$550,000 · Oct 23, 2024

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$6,507 (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.$561,000 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$102,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$459,000
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$550,000

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.8 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
FEMA Flood ZoneFEMA's flood zone for this address. Zones starting with A or V are high risk, and lenders usually require flood insurance there.area not mapped

Scores 0–100; higher = greater projected risk.

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Duplex (2 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Duplex Single
CountyYOLO
Lot (acres)The size of the land the home sits on, from county records.0.09
HeatingThe type of heating system in the home.Yes
CoolingThe type of cooling or air conditioning in the home.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(3)

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.

E
Elkhorn Village Elementary SchoolC+
Elementary · Grades KG–8 · 0.3 mi
H
River City High SchoolB
High · Grades 9–12 · 3.4 mi

District: Washington Unified School District

Neighborhood · ZIP 95605These 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.115
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 100.117

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.13%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.16%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.6%
PopulationHow many people live in this area.13,476
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,785 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$67,316
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$86,598
Average tempThe average temperature here across a full year.61°F
Annual precipHow much rain and melted snow falls here in a typical year.20 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.78%

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Data 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

640 William 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.

  • Bigger than 89% of homes in Broderrick / Bryte
  • Among the smallest lots in Broderrick / Bryte
  • Newer than 76% of homes in Broderrick / Bryte

How it measures up in West Sacramento 95605

The dot is this home. The mark in the middle is the typical home in West Sacramento 95605.

Living area1,696 ft²
SmallerTypical 1,176 ft²Bigger

Bigger than 83% of homes nearby

Lot size4,000 ft²
SmallerTypical 0.13 acBigger

Bigger than 9% of homes nearby

Year built1978
OlderTypical 1959Newer

Newer than 67% of homes nearby

How 640 William St ranks against every home in each area.
MeasureThis homeBroderrick / BryteWest Sacramento 95605Yolo County
Living areabigger than1,696 ft²89% of homes83% of homes52% of homes
Lot sizebigger than4,000 ft²almost no homes9% of homes11% of homes
Year builtnewer than197876% of homes67% of homes45% of homes

About 640 William St

When did 640 William St, West Sacramento, CA last sell?

640 William St, West Sacramento, CA last sold on Oct 23, 2024 for $550,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

How big is 640 William St, West Sacramento, CA?

640 William St, West Sacramento, CA has 4 bedrooms, 2 bathrooms, 1,696 square feet of living space and a 0.09-acre lot.

When was 640 William St, West Sacramento, CA built?

640 William St, West Sacramento, CA was built in 1978, making it 48 years old. It is a duplex single home. The building has 2 stories.

What schools serve 640 William St, West Sacramento, CA?

640 William St, West Sacramento, CA is assigned to Elkhorn Village Elementary School (elementary), rated C+; River City High School (high), rated B. All sit in Washington Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 640 William St, West Sacramento, CA compare to other homes in West Sacramento 95605?

Among the 3,681 homes in West Sacramento 95605, it is bigger than 83% of them (1,696 ft² against a typical 1,176 ft²), its lot is bigger than 9% of them (4,000 ft² against a typical 0.13 ac) and it is newer than 67% of them (1978 against a typical 1959). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 640 William St, West Sacramento, CA?

The 2025 property tax bill for 640 William St, West Sacramento, CA was $6,507. The county assessed it at $561,000.

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