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Single Family ResidenceResidential
$494,986$261 / ft²
TopHap EstimateOur estimate of what this home would sell for today, based on nearby sales, the home's size and features, and local price trends. It is a starting point, not an appraisal.· confidence 93How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026

128 SIMONTON ST

VALLEJO, CA 94589
5
Beds
3
Baths
1,896 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.
0.16 ac
Lot SizeThe size of the land the home sits on, from county records.
1957
Year BuiltThe year the home was originally built, according to county records.
3
StoriesHow many floors the home has above ground.
7
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$495K
$460K low$530K high
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$494,986
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$395,989

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$3,481 (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.$200,319 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$61,887
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$138,432
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$196,392
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$502,290

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.43
38
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
64
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
37
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
44
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
36
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.7 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.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Ranch
CountySOLANO
Lot (acres)The size of the land the home sits on, from county records.0.16
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Patio · 306 ft²

Transaction History(2)

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
Solano Widenmann Leadership AcademyD-
Elementary · Grades KG–8 · 0.9 mi
H
Vallejo High SchoolC-
High · Grades 9–12 · 2.1 mi

District: Vallejo City Unified School District

Neighborhood · ZIP 94589These 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.85
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.89
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.458

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.18%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.9.0%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.5%
PopulationHow many people live in this area.31,672
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.2,964 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$86,946
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$112,809
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%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.No

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

128 Simonton 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.

  • Worth less than 67% of homes in Solano County
  • Costs less per square foot than 90% of homes in Vallejo 94589
  • Bigger than 91% of homes in Vallejo 94589
  • Has a bigger lot than 67% of homes in Vallejo 94589
  • Older than 85% of homes in Vallejo 94589

What homes are worth in Vallejo 94589

Each bar is how many homes fall in that price range. The marker is this home.

This home
$187K$639K

This home is worth more than 63% of homes in Vallejo 94589.

How it measures up in Vallejo 94589

The dot is this home. The mark in the middle is the typical home in Vallejo 94589.

Estimated value$494,986
CheaperTypical $475,258Pricier

Pricier than 63% of homes nearby

Price per ft²$261
CheaperTypical $343Pricier

Pricier than 10% of homes nearby

Living area1,896 ft²
SmallerTypical 1,358 ft²Bigger

Bigger than 91% of homes nearby

Lot size0.16 ac
SmallerTypical 0.14 acBigger

Bigger than 67% of homes nearby

Year built1957
OlderTypical 1974Newer

Newer than 15% of homes nearby

How 128 Simonton St ranks against every home in each area.
MeasureThis homeVallejo 94589Solano County
Estimated valuepricier than$494,98663% of homes33% of homes
Price per ft²pricier than$26110% of homes11% of homes
Living areabigger than1,896 ft²91% of homes64% of homes
Lot sizebigger than0.16 ac67% of homes59% of homes
Year builtnewer than195715% of homes16% of homes

About 128 Simonton St

How much is 128 Simonton St, Vallejo, CA worth?

The TopHap Estimate for 128 Simonton St, Vallejo, CA is $494,986 as of Jul 14, 2026. The likely range is $460,049 to $529,923. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 128 Simonton St, Vallejo, CA last sell?

128 Simonton St, Vallejo, CA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 128 Simonton St, Vallejo, CA?

128 Simonton St, Vallejo, CA has 5 bedrooms, 3 bathrooms, 1,896 square feet of living space and a 0.16-acre lot.

When was 128 Simonton St, Vallejo, CA built?

128 Simonton St, Vallejo, CA was built in 1957, making it 69 years old. It is a ranch home. The building has 3 stories.

What schools serve 128 Simonton St, Vallejo, CA?

128 Simonton St, Vallejo, CA is assigned to Solano Widenmann Leadership Academy (elementary), rated D-; Vallejo High School (high), rated C-. All sit in Vallejo City Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 128 Simonton St, Vallejo, CA compare to other homes in Vallejo 94589?

Among the 8,650 homes in Vallejo 94589, it is worth more than 63% of them ($494,986 against a typical $475,258), its price per square foot is higher than 10% of them ($261 against a typical $343), it is bigger than 91% of them (1,896 ft² against a typical 1,358 ft²), its lot is bigger than 67% of them (0.16 ac against a typical 0.14 ac) and it is newer than 15% of them (1957 against a typical 1974). Measured against all of Solano County, it is worth more than 33% of homes there. These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 128 Simonton St, Vallejo, CA?

The 2025 property tax bill for 128 Simonton St, Vallejo, CA was $3,481. The county assessed it at $200,319.

Closest homes

More homes in Vallejo 94589

Assigned schools

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