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Single Family ResidenceResidential
$399,488$205 / 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 Aug 30, 2026

16977 COLUMBIA RIVER DR

SONORA, CA 95370
3
Beds
1.5
Baths
1,952 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.
0.23 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.
3
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$399K
$352K low$447K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,935 (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.$244,077 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$63,672
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$180,405
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$185,198
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$331,740

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.Modern
CountyTUOLUMNE
Lot (acres)The size of the land the home sits on, from county records.0.23
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached
PoolWhether the property has a pool, and what kind, such as in-ground.No

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
Curtis Creek Elementary SchoolD+
Elementary · Grades KG–8 · 3.8 mi
H
Sonora High SchoolB
High · Grades 9–12 · 6.5 mi

District: Curtis Creek Elementary School District

Neighborhood · ZIP 95370These 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.90
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.85
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.81

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.87%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.19%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.15%
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.27,153
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.246 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$76,469
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$99,345
Average tempThe average temperature here across a full year.58°F
Annual precipHow much rain and melted snow falls here in a typical year.35 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

16977 Columbia River Dr 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.

  • Costs less per square foot than 86% of homes in Sonora 95370
  • Bigger than 74% of homes in Tuolumne County
  • Has a smaller lot than 88% of homes in Sonora 95370

What homes are worth in Sonora 95370

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

This home
$191K$916K

This home is worth more than 53% of homes in Sonora 95370.

How it measures up in Sonora 95370

The dot is this home. The mark in the middle is the typical home in Sonora 95370.

Estimated value$399,488
CheaperTypical $392,167Pricier

Pricier than 53% of homes nearby

Price per ft²$205
CheaperTypical $250Pricier

Pricier than 14% of homes nearby

Living area1,952 ft²
SmallerTypical 1,590 ft²Bigger

Bigger than 71% of homes nearby

Lot size0.23 ac
SmallerTypical 0.64 acBigger

Bigger than 12% of homes nearby

Year built1974
OlderTypical 1978Newer

Newer than 36% of homes nearby

How 16977 Columbia River Dr ranks against every home in each area.
MeasureThis homeSonora 95370Tuolumne County
Estimated valuepricier than$399,48853% of homes62% of homes
Price per ft²pricier than$20514% of homes20% of homes
Living areabigger than1,952 ft²71% of homes74% of homes
Lot sizebigger than0.23 ac12% of homes19% of homes
Year builtnewer than197436% of homes37% of homes

About 16977 Columbia River Dr

How much is 16977 Columbia River Dr, Sonora, CA worth?

The TopHap Estimate for 16977 Columbia River Dr, Sonora, CA is $399,488 as of Aug 30, 2026. The likely range is $351,840 to $447,136. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 16977 Columbia River Dr, Sonora, CA last sell?

16977 Columbia River Dr, Sonora, CA last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 16977 Columbia River Dr, Sonora, CA?

16977 Columbia River Dr, Sonora, CA has 3 bedrooms, 1.5 bathrooms, 1,952 square feet of living space and a 0.23-acre lot.

When was 16977 Columbia River Dr, Sonora, CA built?

16977 Columbia River Dr, Sonora, CA was built in 1974, making it 52 years old. It is a modern home. The building has 2 stories.

What schools serve 16977 Columbia River Dr, Sonora, CA?

16977 Columbia River Dr, Sonora, CA is assigned to Curtis Creek Elementary School (elementary), rated D+; Sonora High School (high), rated B. All sit in Curtis Creek Elementary School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 16977 Columbia River Dr, Sonora, CA compare to other homes in Sonora 95370?

Among the 10,859 homes in Sonora 95370, it is worth more than 53% of them ($399,488 against a typical $392,167), its price per square foot is higher than 14% of them ($205 against a typical $250), it is bigger than 71% of them (1,952 ft² against a typical 1,590 ft²), its lot is bigger than 12% of them (0.23 ac against a typical 0.64 ac) and it is newer than 36% of them (1974 against a typical 1978). Measured against all of Tuolumne County, it is worth more than 62% 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 16977 Columbia River Dr, Sonora, CA?

The 2025 property tax bill for 16977 Columbia River Dr, Sonora, CA was $1,935. The county assessed it at $244,077.

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