Skip to content
Skip to content
TopHapOpen in map
Single Family ResidenceResidential
$410,801
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 79How 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

510 RIVER ST

MERRIMAC, WI 53561
0
Baths
0.4 ac
Lot SizeThe size of the land the home sits on, from county records.

Valuation

$411K
$326K low$495K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,877 (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.$254,600 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$42,200
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$212,400
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$254,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$445,916

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountySauk
Lot (acres)The size of the land the home sits on, from county records.0.40

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

E
Merrimac Community Charter Elementary SchoolA
Elementary · Grades PK–5 · 0.4 mi
H
Sauk Prairie High SchoolC
High · Grades 9–12 · 8.7 mi
M
Sauk Prairie Middle SchoolB-
Middle · Grades 6–8 · 8.9 mi

District: Sauk Prairie School District

Neighborhood · ZIP 53561These 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.137
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.81
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.20

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.77%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.21%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.7%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.8%
PopulationHow many people live in this area.1,779
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.40 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$100,698
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$112,995
Average tempThe average temperature here across a full year.46°F
Annual precipHow much rain and melted snow falls here in a typical year.33 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.54%

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

510 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 more than 70% of homes in Sauk County

What homes are worth in Merrimac 53561

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

This home
$69K$1.3M

This home is worth more than 39% of homes in Merrimac 53561.

How it measures up in Merrimac 53561

The dot is this home. The mark in the middle is the typical home in Merrimac 53561.

Estimated value$410,801
CheaperTypical $496,879Pricier

Pricier than 39% of homes nearby

Lot size0.4 ac
SmallerTypical 0.54 acBigger

Bigger than 38% of homes nearby

How 510 River St ranks against every home in each area.
MeasureThis homeMerrimac 53561Sauk County
Estimated valuepricier than$410,80139% of homes70% of homes
Lot sizebigger than0.4 ac38% of homes45% of homes

About 510 River St

How much is 510 River St, Merrimac, WI worth?

The TopHap Estimate for 510 River St, Merrimac, WI is $410,801 as of Sep 24, 2026. The likely range is $326,446 to $495,156. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

What schools serve 510 River St, Merrimac, WI?

510 River St, Merrimac, WI is assigned to Merrimac Community Charter Elementary School (elementary), rated A; Sauk Prairie High School (high), rated C; Sauk Prairie Middle School (middle), rated B-. All sit in Sauk Prairie School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 510 River St, Merrimac, WI compare to other homes in Merrimac 53561?

Among the 1,185 homes in Merrimac 53561, it is worth more than 39% of them ($410,801 against a typical $496,879) and its lot is bigger than 38% of them (0.4 ac against a typical 0.54 ac). Measured against all of Sauk County, it is worth more than 70% 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 510 River St, Merrimac, WI?

The 2025 property tax bill for 510 River St, Merrimac, WI was $4,877. The county assessed it at $254,600.

More homes on River St

Closest homes

More homes in Merrimac 53561

Assigned schools

Explore the area

See this home in context

Open 510 River St 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