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Single Family ResidenceResidential
$340,840$188 / 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 93How 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
Last sold for $213,000 on Sep 11, 2019

312 HARTMANN ST

WATERLOO, IL 62298
2
Beds
4
Baths
1,812 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.
0.32 ac
Lot SizeThe size of the land the home sits on, from county records.
1990
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.

Valuation

$341K
$317K low$365K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$213,000 · Sep 11, 2019

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,330 (2024)
Assessed ValueThe value the county assigns to this home to calculate property tax. It is often lower than what the home would sell for.$98,560 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$17,050
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$81,510
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$96,042
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$295,680

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.36
1
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
14
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
88
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.
8
DroughtProjected water shortage risk, scored 0 to 100. Higher means more strain on the local water supply.

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
CountyMONROE
Lot (acres)The size of the land the home sits on, from county records.0.32
ConstructionThe main material the home's frame and walls are built from.Masonry/Concrete Masonry Units (Cmus)
FoundationWhat the home is built on, such as a concrete slab, a crawl space, or a basement.No Foundation
HeatingThe type of heating system in the home.Central
CoolingThe type of cooling or air conditioning in the home.Central
PoolWhether the property has a pool, and what kind, such as in-ground.No
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 293 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.

H
Waterloo High SchoolB-
High · Grades 9–12 · 0.6 mi
M
Waterloo Junior High SchoolB+
Middle · Grades 6–8 · 0.8 mi
E
W. J. Zahnow Elementary School
Elementary · Grades PK–1 · 1.1 mi

District: Waterloo Community Unit School District 5

Neighborhood · ZIP 62298These 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.99
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.92
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.169

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.95%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.25%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.4.2%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.1%
PopulationHow many people live in this area.18,127
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.124 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$101,202
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$118,724
Average tempThe average temperature here across a full year.56°F
Annual precipHow much rain and melted snow falls here in a typical year.41 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.59%

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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

312 Hartmann 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.

  • Costs less per square foot than 73% of homes in Waterloo 62298
  • Bigger than 73% of homes in Waterloo 62298

What homes are worth in Waterloo 62298

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

This home
$126K$704K

This home is worth more than 57% of homes in Waterloo 62298.

How it measures up in Waterloo 62298

The dot is this home. The mark in the middle is the typical home in Waterloo 62298.

Estimated value$340,840
CheaperTypical $319,201Pricier

Pricier than 57% of homes nearby

Price per ft²$188
CheaperTypical $214Pricier

Pricier than 27% of homes nearby

Living area1,812 ft²
SmallerTypical 1,504 ft²Bigger

Bigger than 73% of homes nearby

Lot size0.32 ac
SmallerTypical 0.43 acBigger

Bigger than 38% of homes nearby

Year built1990
OlderTypical 1991Newer

Newer than 50% of homes nearby

How 312 Hartmann St ranks against every home in each area.
MeasureThis homeWaterloo 62298Monroe County
Estimated valuepricier than$340,84057% of homes59% of homes
Price per ft²pricier than$18827% of homes28% of homes
Living areabigger than1,812 ft²73% of homes73% of homes
Lot sizebigger than0.32 ac38% of homes36% of homes
Year builtnewer than199050% of homes52% of homes

About 312 Hartmann St

How much is 312 Hartmann St, Waterloo, IL worth?

The TopHap Estimate for 312 Hartmann St, Waterloo, IL is $340,840 as of Aug 30, 2026. The likely range is $317,054 to $364,626. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 312 Hartmann St, Waterloo, IL last sell?

312 Hartmann St, Waterloo, IL last sold on Sep 11, 2019 for $213,000, according to the county's recorded deed.

How big is 312 Hartmann St, Waterloo, IL?

312 Hartmann St, Waterloo, IL has 2 bedrooms, 4 bathrooms, 1,812 square feet of living space and a 0.32-acre lot.

When was 312 Hartmann St, Waterloo, IL built?

312 Hartmann St, Waterloo, IL was built in 1990, making it 36 years old. The building has 1 story.

What schools serve 312 Hartmann St, Waterloo, IL?

312 Hartmann St, Waterloo, IL is assigned to Waterloo High School (high), rated B-; Waterloo Junior High School (middle), rated B+; W. J. Zahnow Elementary School (elementary). All sit in Waterloo Community Unit School District 5. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 312 Hartmann St, Waterloo, IL compare to other homes in Waterloo 62298?

Among the 7,136 homes in Waterloo 62298, it is worth more than 57% of them ($340,840 against a typical $319,201), its price per square foot is higher than 27% of them ($188 against a typical $214), it is bigger than 73% of them (1,812 ft² against a typical 1,504 ft²), its lot is bigger than 38% of them (0.32 ac against a typical 0.43 ac) and it is newer than 50% of them (1990 against a typical 1991). Measured against all of Monroe County, it is worth more than 59% 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 312 Hartmann St, Waterloo, IL?

The 2024 property tax bill for 312 Hartmann St, Waterloo, IL was $5,330. The county assessed it at $98,560.

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Assigned schools

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