Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$361,546$430 / 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 97How 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

312 W 21ST AVE

POST FALLS, ID 83854
2
Beds
1
Baths
840 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.
0.28 ac
Lot SizeThe size of the land the home sits on, from county records.
1942
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
6
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$362K
$350K low$373K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$974 (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.$295,730 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$174,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$121,730
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$269,950
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$295,730

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyKOOTENAI
Lot (acres)The size of the land the home sits on, from county records.0.28
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
HeatingThe type of heating system in the home.Gas
CoolingThe type of cooling or air conditioning in the home.None
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck

Transaction History(5)

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
River City Middle SchoolB
Middle · Grades 6–8 · 0.3 mi
E
Seltice Elementary SchoolC-
Elementary · Grades KG–5 · 0.7 mi
H
New Vision High SchoolD-
High · Grades 9–12 · 0.9 mi

District: Post Falls School District 273

Neighborhood · ZIP 83854These 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.82
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.112
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.74

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.96%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.17%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.12%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.4%
PopulationHow many people live in this area.55,111
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.700 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$73,118
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$85,405
Average tempThe average temperature here across a full year.46°F
Annual precipHow much rain and melted snow falls here in a typical year.29 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.64%

Owner Tools

Do you own this home?
Claim this home

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

312 W 21st Ave 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 95% of homes in Kootenai County
  • Costs more per square foot than 92% of homes in Post Falls 83854
  • Smaller than 97% of homes in Post Falls 83854
  • Has a bigger lot than 68% of homes in Post Falls 83854
  • Older than 98% of homes in Post Falls 83854

What homes are worth in Post Falls 83854

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

This home
$269K$1.5M

This home is worth more than 6% of homes in Post Falls 83854.

How it measures up in Post Falls 83854

The dot is this home. The mark in the middle is the typical home in Post Falls 83854.

Estimated value$361,546
CheaperTypical $538,062Pricier

Pricier than 6% of homes nearby

Price per ft²$430
CheaperTypical $311Pricier

Pricier than 92% of homes nearby

Living area840 ft²
SmallerTypical 1,839 ft²Bigger

Bigger than 3% of homes nearby

Lot size0.28 ac
SmallerTypical 0.21 acBigger

Bigger than 68% of homes nearby

Year built1942
OlderTypical 2001Newer

Newer than 2% of homes nearby

How 312 W 21st Ave ranks against every home in each area.
MeasureThis homePost Falls 83854Kootenai County
Estimated valuepricier than$361,5466% of homes5% of homes
Price per ft²pricier than$43092% of homes76% of homes
Living areabigger than840 ft²3% of homes5% of homes
Lot sizebigger than0.28 ac68% of homes54% of homes
Year builtnewer than19422% of homes6% of homes

About 312 W 21st Ave

How much is 312 W 21st Ave, Post Falls, ID worth?

The TopHap Estimate for 312 W 21st Ave, Post Falls, ID is $361,546 as of Sep 24, 2026. The likely range is $350,363 to $372,729. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 312 W 21st Ave, Post Falls, ID last sell?

312 W 21st Ave, Post Falls, ID last sold on Sep 15, 2025, according to the county's recorded deed.

How big is 312 W 21st Ave, Post Falls, ID?

312 W 21st Ave, Post Falls, ID has 2 bedrooms, 1 bathrooms, 840 square feet of living space and a 0.28-acre lot.

When was 312 W 21st Ave, Post Falls, ID built?

312 W 21st Ave, Post Falls, ID was built in 1942, making it 84 years old. The building has 1 story.

What schools serve 312 W 21st Ave, Post Falls, ID?

312 W 21st Ave, Post Falls, ID is assigned to River City Middle School (middle), rated B; Seltice Elementary School (elementary), rated C-; New Vision High School (high), rated D-. All sit in Post Falls School District 273. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 312 W 21st Ave, Post Falls, ID compare to other homes in Post Falls 83854?

Among the 18,571 homes in Post Falls 83854, it is worth more than 6% of them ($361,546 against a typical $538,062), its price per square foot is higher than 92% of them ($430 against a typical $311), it is bigger than 3% of them (840 ft² against a typical 1,839 ft²), its lot is bigger than 68% of them (0.28 ac against a typical 0.21 ac) and it is newer than 2% of them (1942 against a typical 2001). Measured against all of Kootenai County, it is worth more than 5% 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 312 W 21st Ave, Post Falls, ID?

The 2025 property tax bill for 312 W 21st Ave, Post Falls, ID was $974. The county assessed it at $295,730.

More homes on W 21st Ave

Closest homes

More homes in Post Falls 83854

Assigned schools

Explore the area

See this home in context

Open 312 W 21st Ave on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map