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Single Family ResidenceResidential
$133,140$118 / 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 92How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Jul 14, 2026

621 RIVER ST

ALPENA, MI 49707
2
Beds
1
Baths
1,128 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.
0.22 ac
Lot SizeThe size of the land the home sits on, from county records.

Valuation

$133K
$123K low$143K high
Est. Owner EquityRoughly how much of the home's value the owner would keep after paying off known loans. It is our estimate minus the loans still owed.$133,140
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$106,512

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,147 (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.$62,100 (2026)
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$56,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$124,200

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.35
66
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
1
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
39
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
56
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
14
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.33 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.1 percent flood zone

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
CountyALPENA
Lot (acres)The size of the land the home sits on, from county records.0.22
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
PoolWhether the property has a pool, and what kind, such as in-ground.No

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

E
Besser Elementary SchoolA-
Elementary · Grades KG–5 · 1.3 mi
H
Alpena High SchoolA-
High · Grades 8–12 · 1.7 mi
M
Thunder Bay Junior High SchoolB-
Middle · Grades 6–8 · 2.1 mi

District: Alpena Public Schools

Neighborhood · ZIP 49707These 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.90
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.15

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.87%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.9.3%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.21%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.21,727
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.88 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$50,768
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$68,020
Average tempThe average temperature here across a full year.44°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.49%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.No

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

621 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 81% of homes in Alpena 49707
  • Costs less per square foot than 72% of homes in Alpena County
  • Smaller than 69% of homes in Alpena 49707
  • Has a smaller lot than 78% of homes in Alpena County

What homes are worth in Alpena 49707

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

This home
$83K$629K

This home is worth more than 19% of homes in Alpena 49707.

How it measures up in Alpena 49707

The dot is this home. The mark in the middle is the typical home in Alpena 49707.

Estimated value$133,140
CheaperTypical $190,254Pricier

Pricier than 19% of homes nearby

Price per ft²$118
CheaperTypical $142Pricier

Pricier than 29% of homes nearby

Living area1,128 ft²
SmallerTypical 1,347 ft²Bigger

Bigger than 31% of homes nearby

Lot size0.22 ac
SmallerTypical 0.35 acBigger

Bigger than 30% of homes nearby

How 621 River St ranks against every home in each area.
MeasureThis homeAlpena 49707Alpena County
Estimated valuepricier than$133,14019% of homes20% of homes
Price per ft²pricier than$11829% of homes28% of homes
Living areabigger than1,128 ft²31% of homes31% of homes
Lot sizebigger than0.22 ac30% of homes22% of homes

About 621 River St

How much is 621 River St, Alpena, MI worth?

The TopHap Estimate for 621 River St, Alpena, MI is $133,140 as of Jul 14, 2026. The likely range is $122,785 to $143,495. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 621 River St, Alpena, MI last sell?

621 River St, Alpena, MI last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 621 River St, Alpena, MI?

621 River St, Alpena, MI has 2 bedrooms, 1 bathrooms, 1,128 square feet of living space and a 0.22-acre lot.

What schools serve 621 River St, Alpena, MI?

621 River St, Alpena, MI is assigned to Besser Elementary School (elementary), rated A-; Alpena High School (high), rated A-; Thunder Bay Junior High School (middle), rated B-. All sit in Alpena Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 621 River St, Alpena, MI compare to other homes in Alpena 49707?

Among the 10,936 homes in Alpena 49707, it is worth more than 19% of them ($133,140 against a typical $190,254), its price per square foot is higher than 29% of them ($118 against a typical $142), it is bigger than 31% of them (1,128 ft² against a typical 1,347 ft²) and its lot is bigger than 30% of them (0.22 ac against a typical 0.35 ac). Measured against all of Alpena County, it is worth more than 20% 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 621 River St, Alpena, MI?

The 2025 property tax bill for 621 River St, Alpena, MI was $1,147. The county assessed it at $62,100.

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Assigned schools

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