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Single Family ResidenceResidential
$565,026$749 / 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 91How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Aug 30, 2026

491 MONROE ST

NAPA, CA 94559
0
Baths
754 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.
0.15 ac
Lot SizeThe size of the land the home sits on, from county records.
1949
Year BuiltThe year the home was originally built, according to county records.
1
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$565K
$512K low$618K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,265 (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.$396,272 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$219,803
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$176,469
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$396,272

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.34
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
46
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.
51
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.
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.minimal

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
CountyNapa
Lot (acres)The size of the land the home sits on, from county records.0.15
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
HeatingThe type of heating system in the home.Yes
CoolingThe type of cooling or air conditioning in the home.None
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(6)

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.

M
Harvest Magnet Middle School
Middle · Grades 6–8 · 0.4 mi
E
Shearer Elementary SchoolD+
Elementary · Grades KG–5 · 0.6 mi
H
Napa High SchoolB-
High · Grades 9–12 · 1.3 mi

District: Napa Valley Unified School District

Neighborhood · ZIP 94559These 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.97
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.88
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.400

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.92%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.21%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.11%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.25,170
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.628 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$87,352
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$122,518
Average tempThe average temperature here across a full year.58°F
Annual precipHow much rain and melted snow falls here in a typical year.25 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

491 Monroe 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 98% of homes in Fuller Park
  • Costs more per square foot than 82% of homes in Fuller Park
  • Smaller than 98% of homes in Fuller Park
  • Older than 85% of homes in Napa County

What homes are worth in Napa 94559

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

This home
$446K$2.4M

This home is worth more than 8% of homes in Napa 94559.

How it measures up in Napa 94559

The dot is this home. The mark in the middle is the typical home in Napa 94559.

Estimated value$565,026
CheaperTypical $797,740Pricier

Pricier than 8% of homes nearby

Price per ft²$749
CheaperTypical $593Pricier

Pricier than 82% of homes nearby

Living area754 ft²
SmallerTypical 1,400 ft²Bigger

Bigger than 3% of homes nearby

Lot size0.15 ac
SmallerTypical 0.15 acBigger

Bigger than 54% of homes nearby

Year built1949
OlderTypical 1955Newer

Newer than 35% of homes nearby

How 491 Monroe St ranks against every home in each area.
MeasureThis homeFuller ParkNapa 94559Napa County
Estimated valuepricier than$565,0262% of homes8% of homes11% of homes
Price per ft²pricier than$74982% of homes82% of homes82% of homes
Living areabigger than754 ft²2% of homes3% of homes2% of homes
Lot sizebigger than0.15 ac46% of homes54% of homes40% of homes
Year builtnewer than194967% of homes35% of homes15% of homes

About 491 Monroe St

How much is 491 Monroe St, Napa, CA worth?

The TopHap Estimate for 491 Monroe St, Napa, CA is $565,026 as of Aug 30, 2026. The likely range is $512,263 to $617,789. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 491 Monroe St, Napa, CA last sell?

491 Monroe St, Napa, CA last sold on Feb 25, 2013, according to the county's recorded deed.

How big is 491 Monroe St, Napa, CA?

491 Monroe St, Napa, CA has 754 square feet of living space and a 0.15-acre lot.

When was 491 Monroe St, Napa, CA built?

491 Monroe St, Napa, CA was built in 1949, making it 77 years old.

What schools serve 491 Monroe St, Napa, CA?

491 Monroe St, Napa, CA is assigned to Harvest Magnet Middle School (middle); Shearer Elementary School (elementary), rated D+; Napa High School (high), rated B-. All sit in Napa Valley Unified School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 491 Monroe St, Napa, CA compare to other homes in Napa 94559?

Among the 7,778 homes in Napa 94559, it is worth more than 8% of them ($565,026 against a typical $797,740), its price per square foot is higher than 82% of them ($749 against a typical $593), it is bigger than 3% of them (754 ft² against a typical 1,400 ft²), its lot is bigger than 54% of them (0.15 ac against a typical 0.15 ac) and it is newer than 35% of them (1949 against a typical 1955). Measured against all of Napa County, it is worth more than 11% 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 491 Monroe St, Napa, CA?

The 2025 property tax bill for 491 Monroe St, Napa, CA was $5,265. The county assessed it at $396,272.

More homes on Monroe St

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Assigned schools

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