Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$454,582$182 / 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 91How 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

409 E 21ST AVE

POST FALLS, ID 83854
4
Beds
3
Baths
2,496 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.
0.26 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.
1
StoriesHow many floors the home has above ground.
7
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.

Valuation

$455K
$416K low$493K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,633 (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.$425,210 (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.$251,210
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$425,210
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$425,210

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.6 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.Single Family Residence
CountyKootenai
Lot (acres)The size of the land the home sits on, from county records.0.26
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Concrete
HeatingThe type of heating system in the home.Gas
CoolingThe type of cooling or air conditioning in the home.None
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached

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
Post Falls Middle SchoolB+
Middle · Grades 6–8 · 0.3 mi
E
Mullan Trail Elementary SchoolB
Elementary · Grades KG–5 · 0.8 mi
H
New Vision High SchoolD-
High · Grades 9–12 · 1.0 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

409 E 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 81% of homes in Kootenai County
  • Among the lowest price per square foot in Kootenai County
  • Bigger than 77% of homes in Post Falls 83854
  • Has a bigger lot than 65% of homes in Post Falls 83854
  • Older than 89% 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
$279K$1.7M

This home is worth more than 25% 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$454,582
CheaperTypical $538,581Pricier

Pricier than 25% of homes nearby

Price per ft²$182
CheaperTypical $310Pricier

Pricier than 2% of homes nearby

Living area2,496 ft²
SmallerTypical 1,844 ft²Bigger

Bigger than 77% of homes nearby

Lot size0.26 ac
SmallerTypical 0.21 acBigger

Bigger than 65% of homes nearby

Year built1974
OlderTypical 2001Newer

Newer than 11% of homes nearby

How 409 E 21st Ave ranks against every home in each area.
MeasureThis homePost Falls 83854Kootenai County
Estimated valuepricier than$454,58225% of homes19% of homes
Price per ft²pricier than$1822% of homesalmost no homes
Living areabigger than2,496 ft²77% of homes73% of homes
Lot sizebigger than0.26 ac65% of homes51% of homes
Year builtnewer than197411% of homes19% of homes

About 409 E 21st Ave

How much is 409 E 21st Ave, Post Falls, ID worth?

The TopHap Estimate for 409 E 21st Ave, Post Falls, ID is $454,582 as of Sep 24, 2026. The likely range is $415,699 to $493,465. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 409 E 21st Ave, Post Falls, ID last sell?

409 E 21st Ave, Post Falls, ID last sold on Feb 28, 2007, according to the county's recorded deed.

How big is 409 E 21st Ave, Post Falls, ID?

409 E 21st Ave, Post Falls, ID has 4 bedrooms, 3 bathrooms, 2,496 square feet of living space and a 0.26-acre lot.

When was 409 E 21st Ave, Post Falls, ID built?

409 E 21st Ave, Post Falls, ID was built in 1974, making it 52 years old. The building has 1 story.

What schools serve 409 E 21st Ave, Post Falls, ID?

409 E 21st Ave, Post Falls, ID is assigned to Post Falls Middle School (middle), rated B+; Mullan Trail Elementary School (elementary), rated B; 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 409 E 21st Ave, Post Falls, ID compare to other homes in Post Falls 83854?

Among the 18,570 homes in Post Falls 83854, it is worth more than 25% of them ($454,582 against a typical $538,581), its price per square foot is higher than 2% of them ($182 against a typical $310), it is bigger than 77% of them (2,496 ft² against a typical 1,844 ft²), its lot is bigger than 65% of them (0.26 ac against a typical 0.21 ac) and it is newer than 11% of them (1974 against a typical 2001). Measured against all of Kootenai County, it is worth more than 19% 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 409 E 21st Ave, Post Falls, ID?

The 2025 property tax bill for 409 E 21st Ave, Post Falls, ID was $1,633. The county assessed it at $425,210.

More homes on E 21st Ave

Closest homes

More homes in Post Falls 83854

Assigned schools

Explore the area

See this home in context

Open 409 E 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