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Rural ResidenceResidential
$536,344$323 / 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 Aug 30, 2026
Last sold for $359,000 on Jun 4, 2020

4100 18TH ST

UNION, NE 68455
4
Beds
3.3
Baths
1,660 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.
3.11 ac
Lot SizeThe size of the land the home sits on, from county records.
2019
Year BuiltThe year the home was originally built, according to county records.
1
StoriesHow many floors the home has above ground.
3
ParkingThe number of parking spaces on the property, including the garage.

Valuation

$536K
$488K low$585K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$359,000 · Jun 4, 2020

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$4,835 (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.$399,815 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$61,100
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$338,715
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$392,205
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$399,815

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
36
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.
69
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
56
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.
Projected Flood DepthHow deep a serious flood is expected to get here at some point in the next 30 years. Shown in inches.7 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.Rural Residence
CountyCASS
Lot (acres)The size of the land the home sits on, from county records.3.11
RoofThe main material covering the roof, such as asphalt shingle or tile.Composition Shingle
HeatingThe type of heating system in the home.Heat Pump
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
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 · 170 ft²Patio · 170 ft²

Transaction History(2)

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
Conestoga Elementary SchoolB
Elementary · Grades PK–6 · 4.1 mi
M
Conestoga Jr/Sr High SchoolB-
Middle · Grades 7–12 · 4.2 mi

District: Conestoga Public Schools

Neighborhood · ZIP 68455These 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.142
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.103
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.30

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.79%
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.4.7%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.0.9%
PopulationHow many people live in this area.842
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.20 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$94,276
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$119,799
Average tempThe average temperature here across a full year.51°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.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

4100 18th 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 88% of homes in Union 68455
  • Costs more per square foot than 87% of homes in Union 68455
  • Has a bigger lot than 81% of homes in Cass County
  • Newer than 98% of homes in Union 68455

What homes are worth in Union 68455

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

This home
$91K$743K

This home is worth more than 88% of homes in Union 68455.

How it measures up in Union 68455

The dot is this home. The mark in the middle is the typical home in Union 68455.

Estimated value$536,344
CheaperTypical $347,912Pricier

Pricier than 88% of homes nearby

Price per ft²$323
CheaperTypical $241Pricier

Pricier than 87% of homes nearby

Living area1,660 ft²
SmallerTypical 1,476 ft²Bigger

Bigger than 62% of homes nearby

Lot size3.11 ac
SmallerTypical 0.26 acBigger

Bigger than 77% of homes nearby

Year built2019
OlderTypical 1968Newer

Newer than 98% of homes nearby

How 4100 18th St ranks against every home in each area.
MeasureThis homeUnion 68455Cass County
Estimated valuepricier than$536,34488% of homes80% of homes
Price per ft²pricier than$32387% of homes85% of homes
Living areabigger than1,660 ft²62% of homes61% of homes
Lot sizebigger than3.11 ac77% of homes81% of homes
Year builtnewer than201998% of homes95% of homes

About 4100 18th St

How much is 4100 18th St, Union, NE worth?

The TopHap Estimate for 4100 18th St, Union, NE is $536,344 as of Aug 30, 2026. The likely range is $488,086 to $584,602. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 4100 18th St, Union, NE last sell?

4100 18th St, Union, NE last sold on Jun 4, 2020 for $359,000, according to the county's recorded deed.

How big is 4100 18th St, Union, NE?

4100 18th St, Union, NE has 4 bedrooms, 3.3 bathrooms, 1,660 square feet of living space and a 3.11-acre lot.

When was 4100 18th St, Union, NE built?

4100 18th St, Union, NE was built in 2019, making it 7 years old. The building has 1 story.

What schools serve 4100 18th St, Union, NE?

4100 18th St, Union, NE is assigned to Conestoga Elementary School (elementary), rated B; Conestoga Jr/Sr High School (middle), rated B-. All sit in Conestoga Public Schools. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 4100 18th St, Union, NE compare to other homes in Union 68455?

Among the 442 homes in Union 68455, it is worth more than 88% of them ($536,344 against a typical $347,912), its price per square foot is higher than 87% of them ($323 against a typical $241), it is bigger than 62% of them (1,660 ft² against a typical 1,476 ft²), its lot is bigger than 77% of them (3.11 ac against a typical 0.26 ac) and it is newer than 98% of them (2019 against a typical 1968). Measured against all of Cass County, it is worth more than 80% 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 4100 18th St, Union, NE?

The 2025 property tax bill for 4100 18th St, Union, NE was $4,835. The county assessed it at $399,815.

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