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Mobile HomeResidential

515 MONAHAN RD

CASTLE ROCK, WA 98611
3
Beds
2
Baths
1,680 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.
10 ac
Lot SizeThe size of the land the home sits on, from county records.
2000
Year BuiltThe year the home was originally built, according to county records.
8
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.$4,246 (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.$495,460 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$87,360
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$408,100
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$506,240
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$495,460

Climate Risk

Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.12 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
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.Mobile Home
StyleThe architectural style of the home, such as ranch or colonial.Mobile Home
CountyCowlitz
Lot (acres)The size of the land the home sits on, from county records.10.00
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.None
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Detached

Assigned SchoolsThe public schools this address is zoned for. Boundaries change, so confirm with the district before you count on it.

H
Castle Rock High SchoolC-
High · Grades 9–12 · 3.6 mi
M
Castle Rock Middle SchoolD-
Middle · Grades 6–8 · 4.0 mi
E
Castle Rock Elementary SchoolD+
Elementary · Grades PK–5 · 4.1 mi

District: Castle Rock School District

Neighborhood · ZIP 98611These 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.104
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.172

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.12%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.0%
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.10,313
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.84 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$81,330
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$96,543
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.61 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.35%

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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

515 Monahan 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.

  • Has a bigger lot than 97% of homes in Cowlitz County
  • Newer than 79% of homes in Cowlitz County

How it measures up in Castle Rock 98611

The dot is this home. The mark in the middle is the typical home in Castle Rock 98611.

Living area1,680 ft²
SmallerTypical 1,593 ft²Bigger

Bigger than 55% of homes nearby

Lot size10 ac
SmallerTypical 2.44 acBigger

Bigger than 92% of homes nearby

Year built2000
OlderTypical 1980Newer

Newer than 72% of homes nearby

How 515 Monahan Rd ranks against every home in each area.
MeasureThis homeCastle Rock 98611Cowlitz County
Living areabigger than1,680 ft²55% of homes60% of homes
Lot sizebigger than10 ac92% of homes97% of homes
Year builtnewer than200072% of homes79% of homes

About 515 Monahan Rd

How big is 515 Monahan Rd, Castle Rock, WA?

515 Monahan Rd, Castle Rock, WA has 3 bedrooms, 2 bathrooms, 1,680 square feet of living space and a 10.00-acre lot.

When was 515 Monahan Rd, Castle Rock, WA built?

515 Monahan Rd, Castle Rock, WA was built in 2000, making it 26 years old. It is a mobile home home.

What schools serve 515 Monahan Rd, Castle Rock, WA?

515 Monahan Rd, Castle Rock, WA is assigned to Castle Rock High School (high), rated C-; Castle Rock Middle School (middle), rated D-; Castle Rock Elementary School (elementary), rated D+. All sit in Castle Rock School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 515 Monahan Rd, Castle Rock, WA compare to other homes in Castle Rock 98611?

Among the 4,409 homes in Castle Rock 98611, it is bigger than 55% of them (1,680 ft² against a typical 1,593 ft²), its lot is bigger than 92% of them (10 ac against a typical 2.44 ac) and it is newer than 72% of them (2000 against a typical 1980). These shares are recounted nightly from the full county assessor record for each area, not from active listings.

What are the property taxes on 515 Monahan Rd, Castle Rock, WA?

The 2025 property tax bill for 515 Monahan Rd, Castle Rock, WA was $4,246. The county assessed it at $495,460.

More homes on Monahan Rd

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More homes in Castle Rock 98611

Assigned schools

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