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Single Family ResidenceResidential
$179,655$142 / 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 Aug 30, 2026

521 MONMOUTH ST

FOND DU LAC, WI 54937
3
Beds
1
Baths
1,268 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.
0.17 ac
Lot SizeThe size of the land the home sits on, from county records.
1922
Year BuiltThe year the home was originally built, according to county records.
2
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$180K
$170K low$189K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,806 (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.$174,100 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$14,700
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$159,400
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$95,600
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$181,641

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.20 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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.0.2 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
CountyFond du Lac
Lot (acres)The size of the land the home sits on, from county records.0.17
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.Raised (Unspecified)
HeatingThe type of heating system in the home.None
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Deck · 40 ft²

Transaction History(1)

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.

E
Parkside Elementary SchoolC+
Elementary · Grades PK–5 · 0.4 mi
M
Sabish Middle SchoolB+
Middle · Grades 6–8 · 0.9 mi
H
Fond Du Lac High SchoolC
High · Grades 9–12 · 2.4 mi

District: Fond Du Lac School District

Neighborhood · ZIP 54937These 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.76
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.77
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.21

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.14%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.7.9%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.0%
PopulationHow many people live in this area.21,068
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.175 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$89,119
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$100,235
Average tempThe average temperature here across a full year.46°F
Annual precipHow much rain and melted snow falls here in a typical year.31 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.54%

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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

521 Monmouth 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 88% of homes in Fond Du Lac 54937
  • Costs less per square foot than 84% of homes in Fond Du Lac 54937
  • Smaller than 72% of homes in Fond Du Lac 54937
  • Has a smaller lot than 91% of homes in Fond Du Lac 54937
  • Older than 78% of homes in Fond Du Lac 54937

What homes are worth in Fond Du Lac 54937

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

This home
$107K$903K

This home is worth more than 12% of homes in Fond Du Lac 54937.

How it measures up in Fond Du Lac 54937

The dot is this home. The mark in the middle is the typical home in Fond Du Lac 54937.

Estimated value$179,655
CheaperTypical $346,737Pricier

Pricier than 12% of homes nearby

Price per ft²$142
CheaperTypical $204Pricier

Pricier than 16% of homes nearby

Living area1,268 ft²
SmallerTypical 1,583 ft²Bigger

Bigger than 28% of homes nearby

Lot size0.17 ac
SmallerTypical 0.71 acBigger

Bigger than 9% of homes nearby

Year built1922
OlderTypical 1973Newer

Newer than 22% of homes nearby

How 521 Monmouth St ranks against every home in each area.
MeasureThis homeFond Du Lac 54937Fond du Lac County
Estimated valuepricier than$179,65512% of homes22% of homes
Price per ft²pricier than$14216% of homes31% of homes
Living areabigger than1,268 ft²28% of homes35% of homes
Lot sizebigger than0.17 ac9% of homes20% of homes
Year builtnewer than192222% of homes32% of homes

About 521 Monmouth St

How much is 521 Monmouth St, Fond Du Lac, WI worth?

The TopHap Estimate for 521 Monmouth St, Fond Du Lac, WI is $179,655 as of Aug 30, 2026. The likely range is $170,217 to $189,093. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

How big is 521 Monmouth St, Fond Du Lac, WI?

521 Monmouth St, Fond Du Lac, WI has 3 bedrooms, 1 bathrooms, 1,268 square feet of living space and a 0.17-acre lot.

When was 521 Monmouth St, Fond Du Lac, WI built?

521 Monmouth St, Fond Du Lac, WI was built in 1922, making it 104 years old.

What schools serve 521 Monmouth St, Fond Du Lac, WI?

521 Monmouth St, Fond Du Lac, WI is assigned to Parkside Elementary School (elementary), rated C+; Sabish Middle School (middle), rated B+; Fond Du Lac High School (high), rated C. All sit in Fond Du Lac School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 521 Monmouth St, Fond Du Lac, WI compare to other homes in Fond Du Lac 54937?

Among the 7,213 homes in Fond Du Lac 54937, it is worth more than 12% of them ($179,655 against a typical $346,737), its price per square foot is higher than 16% of them ($142 against a typical $204), it is bigger than 28% of them (1,268 ft² against a typical 1,583 ft²), its lot is bigger than 9% of them (0.17 ac against a typical 0.71 ac) and it is newer than 22% of them (1922 against a typical 1973). Measured against all of Fond du Lac County, it is worth more than 22% 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 521 Monmouth St, Fond Du Lac, WI?

The 2025 property tax bill for 521 Monmouth St, Fond Du Lac, WI was $2,806. The county assessed it at $174,100.

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