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Single Family ResidenceResidential
$288,914$129 / 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 90How 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

420 OAK ST

RIVERDALE, NE 68870
0.5
Baths
2,248 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.
0.3 ac
Lot SizeThe size of the land the home sits on, from county records.
1975
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
4
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$289K
$260K low$318K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$180 (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.$306,965 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$20,000
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$286,965
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$298,980
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$306,965

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.2 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
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.minimal

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
CountyBUFFALO
Lot (acres)The size of the land the home sits on, from county records.0.30
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.Composition Shingle
HeatingThe type of heating system in the home.Forced Air With Air Conditioning
CoolingThe type of cooling or air conditioning in the home.Central
FireplaceWhether the home has a fireplace, and what kind.Yes
GarageWhether the property has a garage, and details like whether it is attached to the home.Mixed
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.Deck · 282 ft²Shed · 140 ft²Patio · 73 ft²Porch · 100 ft²

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

E
Amherst Elementary SchoolB
Elementary · Grades PK–6 · 6.4 mi
M
Amherst High SchoolA-
Middle · Grades 7–12 · 6.4 mi

District: Amherst Public Schools

Neighborhood · ZIP 68870These 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.90
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.19

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.27%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.3.9%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.7%
PopulationHow many people live in this area.771
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.19 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$91,571
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$105,750
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.25 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.66%

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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

420 Oak 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 88% of homes in Buffalo County
  • Bigger than 91% of homes in Buffalo County
  • Has a smaller lot than 73% of homes in Riverdale 68870

What homes are worth in Riverdale 68870

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

This home
$120K$713K

This home is worth more than 51% of homes in Riverdale 68870.

How it measures up in Riverdale 68870

The dot is this home. The mark in the middle is the typical home in Riverdale 68870.

Estimated value$288,914
CheaperTypical $287,401Pricier

Pricier than 51% of homes nearby

Price per ft²$129
CheaperTypical $193Pricier

Pricier than 14% of homes nearby

Living area2,248 ft²
SmallerTypical 1,531 ft²Bigger

Bigger than 87% of homes nearby

Lot size0.3 ac
SmallerTypical 1.89 acBigger

Bigger than 27% of homes nearby

Year built1975
OlderTypical 1974Newer

Newer than 53% of homes nearby

How 420 Oak St ranks against every home in each area.
MeasureThis homeRiverdale 68870Buffalo County
Estimated valuepricier than$288,91451% of homes52% of homes
Price per ft²pricier than$12914% of homes12% of homes
Living areabigger than2,248 ft²87% of homes91% of homes
Lot sizebigger than0.3 ac27% of homes57% of homes
Year builtnewer than197553% of homes46% of homes

About 420 Oak St

How much is 420 Oak St, Riverdale, NE worth?

The TopHap Estimate for 420 Oak St, Riverdale, NE is $288,914 as of Jul 14, 2026. The likely range is $259,840 to $317,988. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 420 Oak St, Riverdale, NE last sell?

420 Oak St, Riverdale, NE last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 420 Oak St, Riverdale, NE?

420 Oak St, Riverdale, NE has 0.5 bathrooms, 2,248 square feet of living space and a 0.30-acre lot.

When was 420 Oak St, Riverdale, NE built?

420 Oak St, Riverdale, NE was built in 1975, making it 51 years old. The building has 1 story.

What schools serve 420 Oak St, Riverdale, NE?

420 Oak St, Riverdale, NE is assigned to Amherst Elementary School (elementary), rated B; Amherst High School (middle), rated A-. All sit in Amherst Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 420 Oak St, Riverdale, NE compare to other homes in Riverdale 68870?

Among the 193 homes in Riverdale 68870, it is worth more than 51% of them ($288,914 against a typical $287,401), its price per square foot is higher than 14% of them ($129 against a typical $193), it is bigger than 87% of them (2,248 ft² against a typical 1,531 ft²), its lot is bigger than 27% of them (0.3 ac against a typical 1.89 ac) and it is newer than 53% of them (1975 against a typical 1974). Measured against all of Buffalo County, it is worth more than 52% 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 420 Oak St, Riverdale, NE?

The 2025 property tax bill for 420 Oak St, Riverdale, NE was $180. The county assessed it at $306,965.

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