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Single Family ResidenceResidential
$319,037$248 / 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 95How 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 $78,500 on Mar 19, 2007

3945 121ST AVE

ALLEGAN, MI 49010
2
Baths
1,284 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.
8.91 ac
Lot SizeThe size of the land the home sits on, from county records.
1
StoriesHow many floors the home has above ground.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$319K
$302K low$336K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$78,500 · Mar 19, 2007

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,799 (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.$155,300 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$52,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$103,200
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$146,500
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$310,600

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
StyleThe architectural style of the home, such as ranch or colonial.Ranch
CountyALLEGAN
Lot (acres)The size of the land the home sits on, from county records.8.91
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Yes
FireplaceWhether the home has a fireplace, and what kind.Yes
PoolWhether the property has a pool, and what kind, such as in-ground.No

Transaction History(4)

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.

H
Allegan High SchoolC
High · Grades 9–12 · 4.3 mi
E
Dawson Elementary SchoolB
Elementary · Grades KG–5 · 4.5 mi
M
L.E. White Middle SchoolB-
Middle · Grades 6–8 · 4.5 mi

District: Allegan Public Schools

Neighborhood · ZIP 49010These 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.114
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.79
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.24

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.90%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.13%
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.1.2%
PopulationHow many people live in this area.18,900
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.114 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$68,616
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$80,455
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.40 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.46%

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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

3945 121st 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.

  • Costs more per square foot than 75% of homes in Allegan 49010
  • Smaller than 68% of homes in Allegan County
  • Has a bigger lot than 89% of homes in Allegan County

What homes are worth in Allegan 49010

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

This home
$87K$664K

This home is worth more than 63% of homes in Allegan 49010.

How it measures up in Allegan 49010

The dot is this home. The mark in the middle is the typical home in Allegan 49010.

Estimated value$319,037
CheaperTypical $273,350Pricier

Pricier than 63% of homes nearby

Price per ft²$248
CheaperTypical $193Pricier

Pricier than 75% of homes nearby

Living area1,284 ft²
SmallerTypical 1,464 ft²Bigger

Bigger than 34% of homes nearby

Lot size8.91 ac
SmallerTypical 1.02 acBigger

Bigger than 87% of homes nearby

How 3945 121st Ave ranks against every home in each area.
MeasureThis homeAllegan 49010Allegan County
Estimated valuepricier than$319,03763% of homes43% of homes
Price per ft²pricier than$24875% of homes55% of homes
Living areabigger than1,284 ft²34% of homes32% of homes
Lot sizebigger than8.91 ac87% of homes89% of homes

About 3945 121st Ave

How much is 3945 121st Ave, Allegan, MI worth?

The TopHap Estimate for 3945 121st Ave, Allegan, MI is $319,037 as of Sep 24, 2026. The likely range is $302,140 to $335,934. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 3945 121st Ave, Allegan, MI last sell?

3945 121st Ave, Allegan, MI last sold on Mar 19, 2007 for $78,500, according to the county's recorded deed. TopHap holds 3 recorded sales for this parcel.

How big is 3945 121st Ave, Allegan, MI?

3945 121st Ave, Allegan, MI has 2 bathrooms, 1,284 square feet of living space and a 8.91-acre lot.

What schools serve 3945 121st Ave, Allegan, MI?

3945 121st Ave, Allegan, MI is assigned to Allegan High School (high), rated C; Dawson Elementary School (elementary), rated B; L.E. White Middle School (middle), rated B-. All sit in Allegan Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 3945 121st Ave, Allegan, MI compare to other homes in Allegan 49010?

Among the 7,195 homes in Allegan 49010, it is worth more than 63% of them ($319,037 against a typical $273,350), its price per square foot is higher than 75% of them ($248 against a typical $193), it is bigger than 34% of them (1,284 ft² against a typical 1,464 ft²) and its lot is bigger than 87% of them (8.91 ac against a typical 1.02 ac). Measured against all of Allegan County, it is worth more than 43% 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 3945 121st Ave, Allegan, MI?

The 2025 property tax bill for 3945 121st Ave, Allegan, MI was $2,799. The county assessed it at $155,300.

More homes on 121st Ave

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Assigned schools

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