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Single Family ResidenceResidential
$369,481$130 / 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 Aug 30, 2026
Last sold for $155,000 on Aug 30, 2004

604 1ST ST

FORT LUPTON, CO 80621
4
Beds
2
Baths
2,853 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.
0.17 ac
Lot SizeThe size of the land the home sits on, from county records.
1913
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
8
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.

Valuation

$369K
$334K low$405K high
Last SaleThe most recent sale price and date from the recorded deed. Transfers between family members or companies may not reflect market value.$155,000 · Aug 30, 2004

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$1,472 (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.$14,530 (2026)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$3,560
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$10,970
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$14,850
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$237,543

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.16 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.51%
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
CountyWELD
Effective Year BuiltAn adjusted build year that accounts for condition and major remodels. A big renovation can make a home count as newer than it is.1962
Lot (acres)The size of the land the home sits on, from county records.0.17
ConstructionThe main material the home's frame and walls are built from.Wood (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
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 · 756 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.

M
Fort Lupton Middle SchoolD+
Middle · Grades 6–8 · 0.2 mi
H
Fort Lupton High SchoolD+
High · Grades 9–12 · 0.3 mi
E
Butler Elementary SchoolC-
Elementary · Grades KG–5 · 0.3 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

604 1st 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 81% of homes in Weld County
  • Among the lowest price per square foot in Fort Lupton 80621
  • Bigger than 96% of homes in Fort Lupton 80621
  • Older than 96% 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
$260K$961K

This home is worth more than 28% 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$369,481
CheaperTypical $423,212Pricier

Pricier than 28% of homes nearby

Price per ft²$130
CheaperTypical $304Pricier

Cheaper than almost all homes nearby

Living area2,853 ft²
SmallerTypical 1,442 ft²Bigger

Bigger than 96% of homes nearby

Lot size0.17 ac
SmallerTypical 0.18 acBigger

Bigger than 46% of homes nearby

Year built1913
OlderTypical 1996Newer

Newer than 5% of homes nearby

How 604 1st St ranks against every home in each area.
MeasureThis homeFort Lupton 80621Weld County
Estimated valuepricier than$369,48128% of homes19% of homes
Price per ft²pricier than$130almost no homesalmost no homes
Living areabigger than2,853 ft²96% of homes91% of homes
Lot sizebigger than0.17 ac46% of homes46% of homes
Year builtnewer than19135% of homes4% of homes

About 604 1st St

How much is 604 1st St, Fort Lupton, CO worth?

The TopHap Estimate for 604 1st St, Fort Lupton, CO is $369,481 as of Aug 30, 2026. The likely range is $333,546 to $405,416. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 604 1st St, Fort Lupton, CO last sell?

604 1st St, Fort Lupton, CO last sold on Aug 30, 2004 for $155,000, according to the county's recorded deed.

How big is 604 1st St, Fort Lupton, CO?

604 1st St, Fort Lupton, CO has 4 bedrooms, 2 bathrooms, 2,853 square feet of living space and a 0.17-acre lot.

When was 604 1st St, Fort Lupton, CO built?

604 1st St, Fort Lupton, CO was built in 1913, making it 113 years old. The building has 2 stories.

What schools serve 604 1st St, Fort Lupton, CO?

604 1st St, Fort Lupton, CO is assigned to Fort Lupton Middle School (middle), rated D+; Fort Lupton High School (high), rated D+; Butler Elementary School (elementary), rated C-. All sit in Weld County School District Re-8. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 604 1st 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 28% of them ($369,481 against a typical $423,212), its price per square foot is higher than almost none of them ($130 against a typical $304), it is bigger than 96% of them (2,853 ft² against a typical 1,442 ft²), its lot is bigger than 46% of them (0.17 ac against a typical 0.18 ac) and it is newer than 5% of them (1913 against a typical 1996). Measured against all of Weld County, it is worth more than 19% 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 604 1st St, Fort Lupton, CO?

The 2025 property tax bill for 604 1st St, Fort Lupton, CO was $1,472. The county assessed it at $14,530.

More homes on 1st St

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