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Single Family ResidenceResidential
$892,226$633 / 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 88How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026
Last sold for $910,000 on Sep 7, 2018

5139 MUNIZ RANCH RD

UNINCORP COUNTY, CA
2
Beds
1.5
Baths
1,410 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.
26.61 ac
Lot SizeThe size of the land the home sits on, from county records.
1974
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
2
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$892K
$781K low$1M high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$910,000 · Sep 7, 2018

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$11,025 (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.$1,006,973 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$398,237
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$608,736
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$987,229

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.22
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
83
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
30
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
StyleThe architectural style of the home, such as ranch or colonial.Custom Design
CountySONOMA
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.None
FireplaceWhether the home has a fireplace, and what kind.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
Montgomery Elementary SchoolB
Elementary · Grades KG–8 · 3.8 mi
H
Analy High SchoolB+
High · Grades 9–12 · 18.9 mi

District: West Sonoma County Union High School District

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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

5139 Muniz Ranch Rd 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 more than 66% of homes in Sonoma County
  • Costs more per square foot than 80% of homes in Sonoma County
  • Among the largest lots in Sonoma County

How it measures up in Sonoma County

The dot is this home. The mark in the middle is the typical home in Sonoma County.

Estimated value$892,226
CheaperTypical $771,425Pricier

Pricier than 66% of homes nearby

Price per ft²$633
CheaperTypical $488Pricier

Pricier than 80% of homes nearby

Living area1,410 ft²
SmallerTypical 1,558 ft²Bigger

Bigger than 40% of homes nearby

Lot size26.61 ac
SmallerTypical 0.17 acBigger

Bigger than almost all homes nearby

Year built1974
OlderTypical 1978Newer

Newer than 43% of homes nearby

How 5139 Muniz Ranch Rd ranks against every home in each area.
MeasureThis homeSonoma County
Estimated valuepricier than$892,22666% of homes
Price per ft²pricier than$63380% of homes
Living areabigger than1,410 ft²40% of homes
Lot sizebigger than26.61 acalmost all homes
Year builtnewer than197443% of homes

About 5139 Muniz Ranch Rd

How much is 5139 Muniz Ranch Rd, Unincorp County, CA worth?

The TopHap Estimate for 5139 Muniz Ranch Rd, Unincorp County, CA is $892,226 as of Sep 24, 2026. The likely range is $781,395 to $1,003,057. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 5139 Muniz Ranch Rd, Unincorp County, CA last sell?

5139 Muniz Ranch Rd, Unincorp County, CA last sold on Sep 7, 2018 for $910,000, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 5139 Muniz Ranch Rd, Unincorp County, CA?

5139 Muniz Ranch Rd, Unincorp County, CA has 2 bedrooms, 1.5 bathrooms and 1,410 square feet of living space.

When was 5139 Muniz Ranch Rd, Unincorp County, CA built?

5139 Muniz Ranch Rd, Unincorp County, CA was built in 1974, making it 52 years old. It is a custom design home. The building has 2 stories.

What schools serve 5139 Muniz Ranch Rd, Unincorp County, CA?

5139 Muniz Ranch Rd, Unincorp County, CA is assigned to Montgomery Elementary School (elementary), rated B; Analy High School (high), rated B+. All sit in West Sonoma County Union High School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 5139 Muniz Ranch Rd, Unincorp County, CA compare to other homes in Sonoma County?

Among the 155,408 homes in Sonoma County, it is worth more than 66% of them ($892,226 against a typical $771,425), its price per square foot is higher than 80% of them ($633 against a typical $488), it is bigger than 40% of them (1,410 ft² against a typical 1,558 ft²), its lot is bigger than almost all of them (26.61 ac against a typical 0.17 ac) and it is newer than 43% of them (1974 against a typical 1978). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 5139 Muniz Ranch Rd, Unincorp County, CA?

The 2025 property tax bill for 5139 Muniz Ranch Rd, Unincorp County, CA was $11,025. The county assessed it at $1,006,973.

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