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Single Family ResidenceResidential
$545,000$241 / 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 $519,900 on May 23, 2023

2509 ALTO ST

FORT LUPTON, CO 80621
4
Beds
3
Baths
2,265 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.
0.14 ac
Lot SizeThe size of the land the home sits on, from county records.
2022
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$545K
$507K low$583K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$519,900 · May 23, 2023

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$5,682 (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.$31,640 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$6,250
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$25,390
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$31,640
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$506,196

Property Facts

Property TypeThe broad category the county puts this property in, such as residential or commercial.Single Family Residence
CountyWeld
Lot (acres)The size of the land the home sits on, from county records.0.14
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.Central
CoolingThe type of cooling or air conditioning in the home.Central
GarageWhether the property has a garage, and details like whether it is attached to the home.Garage, Attached
FeaturesExtra features found in county records. Records are not complete everywhere, so a missing feature does not always mean the home lacks it.Porch · 110 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
Twombly Elementary SchoolC
Elementary · Grades KG–5 · 0.9 mi
H
Fort Lupton High SchoolD+
High · Grades 9–12 · 1.9 mi
M
Fort Lupton Middle SchoolD+
Middle · Grades 6–8 · 1.9 mi

District: Weld County School District Re-8

Neighborhood · ZIP 80621These 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.117
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.94
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.42

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.8.3%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.6%
PopulationHow many people live in this area.18,639
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.153 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$80,347
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$100,981
Average tempThe average temperature here across a full year.50°F
Annual precipHow much rain and melted snow falls here in a typical year.14 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.69%

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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

2509 Alto 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 79% of homes in Fort Lupton 80621
  • Costs less per square foot than 79% of homes in Fort Lupton 80621
  • Bigger than 86% of homes in Fort Lupton 80621
  • Has a smaller lot than 81% of homes in Fort Lupton 80621
  • Newer than 95% of homes in Weld County

What homes are worth in Fort Lupton 80621

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

This home
$269K$975K

This home is worth more than 79% of homes in Fort Lupton 80621.

How it measures up in Fort Lupton 80621

The dot is this home. The mark in the middle is the typical home in Fort Lupton 80621.

Estimated value$545,000
CheaperTypical $423,974Pricier

Pricier than 79% of homes nearby

Price per ft²$241
CheaperTypical $304Pricier

Pricier than 21% of homes nearby

Living area2,265 ft²
SmallerTypical 1,442 ft²Bigger

Bigger than 86% of homes nearby

Lot size0.14 ac
SmallerTypical 0.18 acBigger

Bigger than 19% of homes nearby

Year built2022
OlderTypical 1995Newer

Newer than 91% of homes nearby

How 2509 Alto St ranks against every home in each area.
MeasureThis homeFort Lupton 80621Weld County
Estimated valuepricier than$545,00079% of homes65% of homes
Price per ft²pricier than$24121% of homes24% of homes
Living areabigger than2,265 ft²86% of homes77% of homes
Lot sizebigger than0.14 ac19% of homes20% of homes
Year builtnewer than202291% of homes95% of homes

About 2509 Alto St

How much is 2509 Alto St, Fort Lupton, CO worth?

The TopHap Estimate for 2509 Alto St, Fort Lupton, CO is $545,000 as of Aug 30, 2026. The likely range is $507,202 to $582,798. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 2509 Alto St, Fort Lupton, CO last sell?

2509 Alto St, Fort Lupton, CO last sold on May 23, 2023 for $519,900, according to the county's recorded deed.

How big is 2509 Alto St, Fort Lupton, CO?

2509 Alto St, Fort Lupton, CO has 4 bedrooms, 3 bathrooms, 2,265 square feet of living space and a 0.14-acre lot.

When was 2509 Alto St, Fort Lupton, CO built?

2509 Alto St, Fort Lupton, CO was built in 2022, making it 4 years old. The building has 2 stories.

What schools serve 2509 Alto St, Fort Lupton, CO?

2509 Alto St, Fort Lupton, CO is assigned to Twombly Elementary School (elementary), rated C; Fort Lupton High School (high), rated D+; Fort Lupton Middle School (middle), rated D+. All sit in Weld County School District Re-8. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 2509 Alto St, Fort Lupton, CO compare to other homes in Fort Lupton 80621?

Among the 4,963 homes in Fort Lupton 80621, it is worth more than 79% of them ($545,000 against a typical $423,974), its price per square foot is higher than 21% of them ($241 against a typical $304), it is bigger than 86% of them (2,265 ft² against a typical 1,442 ft²), its lot is bigger than 19% of them (0.14 ac against a typical 0.18 ac) and it is newer than 91% of them (2022 against a typical 1995). Measured against all of Weld County, it is worth more than 65% 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 2509 Alto St, Fort Lupton, CO?

The 2025 property tax bill for 2509 Alto St, Fort Lupton, CO was $5,682. The county assessed it at $31,640.

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