Duplex (2 Units, Any Combination)Residential
101 POST ST
PETALUMA, CA 94952
3
Beds
1.5
Baths
1,227 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.
0.17 ac
Lot SizeThe size of the land the home sits on, from county records.
1908
Year BuiltThe year the home was originally built, according to county records.
1
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.
1
ParkingThe number of parking spaces on the property, including the garage.
Tax & Assessment
Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,004 (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.$158,454 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$32,507
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$125,947
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$155,348
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.38
94
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
61
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. 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.110 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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.Duplex (2 Units, Any Combination)
StyleThe architectural style of the home, such as ranch or colonial.Custom Design
CountySONOMA
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1926
Lot (acres)The size of the land the home sits on, from county records.0.17
ConstructionThe main material the home's frame and walls are built from.Wood (Unspecified)
HeatingThe type of heating system in the home.None
CoolingThe type of cooling or air conditioning in the home.Yes
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(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.
HEM
Petaluma High SchoolB
High · Grades 9–12 · 0.3 mi
Valley Vista Elementary SchoolC-
Elementary · Grades KG–6 · 0.6 mi
Petaluma Junior High SchoolB-
Middle · Grades 7–8 · 0.8 mi
District: Petaluma Joint Union High School District
Neighborhood · ZIP 94952These 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.92
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.84
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.359
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.93%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.30%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.6.5%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.2%
PopulationHow many people live in this area.35,634
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.160 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$113,828
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$154,802
Average tempThe average temperature here across a full year.57°F
Annual precipHow much rain and melted snow falls here in a typical year.39 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.78%
Owner Tools
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How this home compares
101 Post 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.
- Smaller than 80% of homes in Western
- Older than 98% of homes in Sonoma County
How it measures up in Petaluma 94952
The dot is this home. The mark in the middle is the typical home in Petaluma 94952.
Living area1,227 ft²
SmallerTypical 1,694 ft²Bigger
Bigger than 26% of homes nearby
Lot size0.17 ac
SmallerTypical 0.18 acBigger
Bigger than 45% of homes nearby
Year built1908
OlderTypical 1964Newer
Newer than 10% of homes nearby
| Measure | This home | Western | Petaluma 94952 | Sonoma County |
|---|---|---|---|---|
| Living areabigger than | 1,227 ft² | 20% of homes | 26% of homes | 26% of homes |
| Lot sizebigger than | 0.17 ac | 53% of homes | 45% of homes | 51% of homes |
| Year builtnewer than | 1908 | 9% of homes | 10% of homes | 2% of homes |
About 101 Post St
When did 101 Post St, Petaluma, CA last sell?
101 Post St, Petaluma, CA last sold on Jan 1, 1900, according to the county's recorded deed.
How big is 101 Post St, Petaluma, CA?
101 Post St, Petaluma, CA has 3 bedrooms, 1.5 bathrooms, 1,227 square feet of living space and a 0.17-acre lot.
When was 101 Post St, Petaluma, CA built?
101 Post St, Petaluma, CA was built in 1908, making it 118 years old. It is a custom design home. The building has 1 story.
What schools serve 101 Post St, Petaluma, CA?
101 Post St, Petaluma, CA is assigned to Petaluma High School (high), rated B; Valley Vista Elementary School (elementary), rated C-; Petaluma Junior High School (middle), rated B-. All sit in Petaluma Joint Union High School District. Attendance boundaries change — confirm with the district before relying on an assignment.
How does 101 Post St, Petaluma, CA compare to other homes in Petaluma 94952?
Among the 10,074 homes in Petaluma 94952, it is bigger than 26% of them (1,227 ft² against a typical 1,694 ft²), its lot is bigger than 45% of them (0.17 ac against a typical 0.18 ac) and it is newer than 10% of them (1908 against a typical 1964). These shares are recounted nightly from the full county assessor record for each area, not from active listings.
What are the property taxes on 101 Post St, Petaluma, CA?
The 2025 property tax bill for 101 Post St, Petaluma, CA was $2,004. The county assessed it at $158,454.
More homes on Post St
- 12 Post St2 bd · 1 ba · 1,536 ft² · Sold $1.2M · Jan 2026
- 10 Post St$913K1 bd · 1 ba · 843 ft² · Sold $840K · Dec 2023
- 119 Post St$1M3 bd · 2 ba · 1,619 ft² · Sold $680K · Mar 2023
- 325 Post St$1.7M4 bd · 2 ba · 2,636 ft² · Sold $1.6M · Dec 2021
- 100 Post St$714K2 bd · 1 ba · 937 ft² · Sold $587K · Mar 2021
- 1 Post St$904K3 bd · 2 ba · 1,375 ft² · Sold $750K · Apr 2018
- 332 Post St$890K2 bd · 2.5 ba · 1,570 ft² · Sold $707K · Jun 2017
- 118 Post St$1.1M4 bd · 1.5 ba · 1,702 ft² · Sold $398K · Nov 2011
- 8 Post St$890K2 bd · 1 ba · 1,082 ft² · Sold $245K · Jul 2011
- 17 Post St3 bd · 2 ba · 1,280 ft² · Sold $440K · May 2010
- 324 Post St$795K2 bd · 1 ba · 1,090 ft² · Sold $749K · Jun 2005
- 105 Post St2 bd · 2 ba · 1,276 ft² · Sold $200K · Sep 2004
Closest homes
- 105 Post St52 ft · 2 bd · 2 ba · 1,276 ft² · Sold $200K · Sep 2004
- 31 Post St60 ft · 3 bd · 2 ba · 2,078 ft² · Sold $87K · Sep 1995
- 107 Post St101 ft · 2 bd · 1.5 ba · 824 ft² · Sold Jan 1900
- 110 Upham St$573K136 ft · 2 bd · 1 ba · 775 ft² · Sold $206K · Jun 1990
- 108 Upham St$784K144 ft · 2 bd · 1 ba · 816 ft² · Sold Jan 1900
- 27 Post St$1.2M122 ft · 3 bd · 2.5 ba · 1,709 ft² · Sold $203K · Aug 1994
- 114 Upham St$1.2M138 ft · 5 bd · 2.5 ba · 2,067 ft² · Sold $291K · Dec 1997
- 118 Upham St$639K129 ft · 2 bd · 1 ba · 695 ft² · Sold $206K · Sep 1993
More homes in Petaluma 94952
- 254 Windsor Dr$1.4M3 bd · 2.5 ba · 2,047 ft² · Sold $1.3M · Oct 2026
- 129 Sunny Hill Dr$1.5M3 bd · 2 ba · 1,706 ft² · Sold $1.6M · Oct 2026
- 1189 Brighton View Cir$702K3 bd · 3 ba · 1,220 ft² · Sold $785K · Oct 2026
- 315 Howard St$1.5M3 bd · 2 ba · 2,726 ft² · Sold $1.9M · Oct 2026
- 51 Barn View Ct0.19 ac · Sold $1.9M · Oct 2026
- 111 Haverfield Ln$1.3M4 bd · 2.5 ba · 1,975 ft² · Sold $1.6M · Oct 2026
- 949 Mcnear Ave$1.1M4 bd · 2.5 ba · 2,446 ft² · Sold $1.2M · Oct 2026
- 1375 Gossage Ave3 bd · 2.5 ba · 1,547 ft² · Sold $2.9M · Oct 2026
- 3 Lavender Ter$1.7M4 bd · 3 ba · 2,654 ft² · Sold $1.8M · Oct 2026
- 47 Barn View Ct0.15 ac · Sold $2M · Oct 2026
- 445 Marshall Ave$1.3M3 bd · 2 ba · 1,777 ft² · Sold $1.2M · Oct 2026
- 326 Liberty St$959K3 bd · 3.5 ba · 2,277 ft² · Sold $1M · Oct 2026
Assigned schools
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