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Single Family ResidenceResidential
$112,831
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 81How 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
Last sold for $25,000 on Mar 16, 2018

6439 RIVER ST

RIVERDALE, MI 48877
0
Baths
0.4 ac
Lot SizeThe size of the land the home sits on, from county records.

Valuation

$113K
$91K low$135K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$25,000 · Mar 16, 2018

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$581 (2023)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$63,300 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$60,000
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$126,600

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.32
15
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
16
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
59
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
71
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
2
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.13 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
CountyGRATIOT
Lot (acres)The size of the land the home sits on, from county records.0.40
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.

Foreclosure Filings(1)

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

H
Alma Senior High SchoolC-
High · Grades 9–12 · 9.0 mi
M
Donald L Pavlik Middle SchoolC+
Middle · Grades 6–8 · 9.0 mi
E
Hillcrest Elementary SchoolC-
Elementary · Grades 1–3 · 9.1 mi

District: Alma Public Schools

Neighborhood · ZIP 48877These 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.120
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.91
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.11

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.91%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.8.8%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.14%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.6%
PopulationHow many people live in this area.2,021
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.59 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$60,972
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$86,096
Average tempThe average temperature here across a full year.47°F
Annual precipHow much rain and melted snow falls here in a typical year.32 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.49%

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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

6439 River 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.

  • Worth less than 69% of homes in Gratiot County
  • Has a smaller lot than 86% of homes in Riverdale 48877

What homes are worth in Riverdale 48877

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

This home
$36K$394K

This home is worth more than 35% of homes in Riverdale 48877.

How it measures up in Riverdale 48877

The dot is this home. The mark in the middle is the typical home in Riverdale 48877.

Estimated value$112,831
CheaperTypical $143,262Pricier

Pricier than 35% of homes nearby

Lot size0.4 ac
SmallerTypical 2.06 acBigger

Bigger than 14% of homes nearby

How 6439 River St ranks against every home in each area.
MeasureThis homeRiverdale 48877Gratiot County
Estimated valuepricier than$112,83135% of homes31% of homes
Lot sizebigger than0.4 ac14% of homes39% of homes

About 6439 River St

How much is 6439 River St, Riverdale, MI worth?

The TopHap Estimate for 6439 River St, Riverdale, MI is $112,831 as of Sep 24, 2026. The likely range is $91,057 to $134,605. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 6439 River St, Riverdale, MI last sell?

6439 River St, Riverdale, MI last sold on Mar 16, 2018 for $25,000, according to the county's recorded deed. TopHap holds 2 recorded sales for this parcel.

What schools serve 6439 River St, Riverdale, MI?

6439 River St, Riverdale, MI is assigned to Alma Senior High School (high), rated C-; Donald L Pavlik Middle School (middle), rated C+; Hillcrest Elementary School (elementary), rated C-. All sit in Alma Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 6439 River St, Riverdale, MI compare to other homes in Riverdale 48877?

Among the 1,003 homes in Riverdale 48877, it is worth more than 35% of them ($112,831 against a typical $143,262) and its lot is bigger than 14% of them (0.4 ac against a typical 2.06 ac). Measured against all of Gratiot County, it is worth more than 31% 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 6439 River St, Riverdale, MI?

The 2023 property tax bill for 6439 River St, Riverdale, MI was $581. The county assessed it at $63,300.

More homes on River St

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Assigned schools

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