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Residential (General/Single)Residential
$53,342$32 / 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 91How 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

521 ROCK ST

HANNIBAL, MO 63401
2
Beds
1
Baths
1,676 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.
0.1 ac
Lot SizeThe size of the land the home sits on, from county records.
1931
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
5
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$53K
$49K low$58K 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.$53,342
Est. Lendable EquityThe part of the owner's equity a lender would typically let them borrow against — about 80% of their equity.$42,674

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$414 (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.$6,390 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$370
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$6,020
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$5,810
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$33,640

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Residential (General/Single)
CountyMarion
Lot (acres)The size of the land the home sits on, from county records.0.10
ConstructionThe main material the home's frame and walls are built from.Frame (Unspecified)
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.None
CoolingThe type of cooling or air conditioning 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.Porch · 70 ft²

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

H
Hannibal High SchoolC+
High · Grades 9–12 · 1.6 mi
M
Hannibal Middle SchoolC-
Middle · Grades 6–8 · 1.7 mi
E
Veterans Elementary SchoolC+
Elementary · Grades KG–5 · 3.1 mi

District: Hannibal 60 School District

Neighborhood · ZIP 63401These 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.105
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.76
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.40

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.88%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.16%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.12%
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.21,152
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.177 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$62,165
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$71,961
Average tempThe average temperature here across a full year.53°F
Annual precipHow much rain and melted snow falls here in a typical year.39 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.56%

Ownership

OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Absentee owner
Company ownedWhether the owner is a company or trust rather than a person.Yes

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 Rock 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 94% of homes in Marion County
  • Costs less per square foot than 97% of homes in Marion County
  • Has a smaller lot than 81% of homes in Marion County
  • Older than 65% of homes in Marion County

What homes are worth in Hannibal 63401

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

This home
$40K$544K

This home is worth more than 7% of homes in Hannibal 63401.

How it measures up in Hannibal 63401

The dot is this home. The mark in the middle is the typical home in Hannibal 63401.

Estimated value$53,342
CheaperTypical $165,143Pricier

Pricier than 7% of homes nearby

Price per ft²$32
CheaperTypical $121Pricier

Pricier than 4% of homes nearby

Living area1,676 ft²
SmallerTypical 1,456 ft²Bigger

Bigger than 64% of homes nearby

Lot size0.1 ac
SmallerTypical 0.3 acBigger

Bigger than 24% of homes nearby

Year built1931
OlderTypical 1958Newer

Newer than 38% of homes nearby

How 521 Rock St ranks against every home in each area.
MeasureThis homeHannibal 63401Marion County
Estimated valuepricier than$53,3427% of homes6% of homes
Price per ft²pricier than$324% of homes3% of homes
Living areabigger than1,676 ft²64% of homes63% of homes
Lot sizebigger than0.1 ac24% of homes19% of homes
Year builtnewer than193138% of homes35% of homes

About 521 Rock St

How much is 521 Rock St, Hannibal, MO worth?

The TopHap Estimate for 521 Rock St, Hannibal, MO is $53,342 as of Jul 14, 2026. The likely range is $48,768 to $57,916. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 521 Rock St, Hannibal, MO last sell?

521 Rock St, Hannibal, MO last sold on Jun 27, 2022, according to the county's recorded deed.

How big is 521 Rock St, Hannibal, MO?

521 Rock St, Hannibal, MO has 2 bedrooms, 1 bathrooms, 1,676 square feet of living space and a 0.10-acre lot.

When was 521 Rock St, Hannibal, MO built?

521 Rock St, Hannibal, MO was built in 1931, making it 95 years old. The building has 2 stories.

What schools serve 521 Rock St, Hannibal, MO?

521 Rock St, Hannibal, MO is assigned to Hannibal High School (high), rated C+; Hannibal Middle School (middle), rated C-; Veterans Elementary School (elementary), rated C+. All sit in Hannibal 60 School District. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 521 Rock St, Hannibal, MO compare to other homes in Hannibal 63401?

Among the 8,765 homes in Hannibal 63401, it is worth more than 7% of them ($53,342 against a typical $165,143), its price per square foot is higher than 4% of them ($32 against a typical $121), it is bigger than 64% of them (1,676 ft² against a typical 1,456 ft²), its lot is bigger than 24% of them (0.1 ac against a typical 0.3 ac) and it is newer than 38% of them (1931 against a typical 1958). Measured against all of Marion County, it is worth more than 6% 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 Rock St, Hannibal, MO?

The 2025 property tax bill for 521 Rock St, Hannibal, MO was $414. The county assessed it at $6,390.

Closest homes

More homes in Hannibal 63401

Assigned schools

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