Duplex (2 Units, Any Combination)Residential
807 21ST AVE
ROCKFORD, IL 61104
4
Beds
2
Baths
2,368 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.
3,920 ft²
Lot SizeThe size of the land the home sits on, from county records.
1930
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.
10
RoomsThe total room count in county records. Counties differ on which rooms they count, so compare it loosely.
1
ParkingThe number of parking spaces on the property, including the garage.
Valuation
1st MortgageA loan still believed to be open on this home, in the order lenders get repaid. The first position is paid back before the second.$69,600
ESPERANZA FINANCIAL SVCS INC · recorded Apr 1, 2004
Tax & Assessment
Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,260 (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.$31,599 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$1,600
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$29,999
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$28,358
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$94,797
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.39
35
FloodProjected flooding risk from rivers, heavy rain, and storm surge, scored 0 to 100. Higher is riskier.
1
WildfireProjected wildfire risk, scored 0 to 100, based on how much land burns in a typical year. Higher is riskier.
68
HeatProjected heat risk, scored 0 to 100, based on how many extremely hot days a year are expected. Higher is riskier.
60
StormProjected risk from heavy rainstorms, scored 0 to 100, based on how often extreme rainfall is expected. Higher is riskier.
31
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.6 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.30%
Scores 0–100; higher = greater projected risk.
Property Facts
Property TypeThe broad category the county puts this property in, such as residential or commercial.Duplex (2 Units, Any Combination)
CountyWINNEBAGO
Lot (acres)The size of the land the home sits on, from county records.0.90
ConstructionThe main material the home's frame and walls are built from.Brick
RoofThe main material covering the roof, such as asphalt shingle or tile.Asphalt
HeatingThe type of heating system in the home.Yes
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, Detached
PoolWhether the property has a pool, and what kind, such as in-ground.No
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.
EMH
Riverdahl Elementary SchoolD+
Elementary · Grades KG–5 · 1.6 mi
RESA Middle SchoolD
Middle · Grades 6–8 · 2.0 mi
Jefferson High SchoolF
High · Grades 9–12 · 3.5 mi
District: Rockford School District 205
Neighborhood · ZIP 61104These 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.157
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 100.39
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.84%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.6.0%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.36%
UnemploymentThe share of men 16 and older who are out of work and actively looking. Only men are counted in this figure.1.3%
PopulationHow many people live in this area.17,656
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.3,783 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$34,362
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$47,725
Average tempThe average temperature here across a full year.48°F
Annual precipHow much rain and melted snow falls here in a typical year.36 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.52%
Ownership
OccupancyWhether the owner appears to live here or somewhere else. It is inferred from the mailing address on record.Owner occupied
Company ownedWhether the owner is a company or trust rather than a person.No
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
807 21st Ave 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.
- Bigger than 85% of homes in South Sixth Street
- Among the smallest lots in South Sixth Street
- Newer than 93% of homes in South Sixth Street
How it measures up in Rockford 61104
The dot is this home. The mark in the middle is the typical home in Rockford 61104.
Living area2,368 ft²
SmallerTypical 1,578 ft²Bigger
Bigger than 85% of homes nearby
Lot size3,920 ft²
SmallerTypical 0.17 acBigger
Smaller than almost all homes nearby
Year built1930
OlderTypical 1920Newer
Newer than 81% of homes nearby
| Measure | This home | South Sixth Street | Rockford 61104 | Winnebago County |
|---|---|---|---|---|
| Living areabigger than | 2,368 ft² | 85% of homes | 85% of homes | 82% of homes |
| Lot sizebigger than | 3,920 ft² | almost no homes | almost no homes | almost no homes |
| Year builtnewer than | 1930 | 93% of homes | 81% of homes | 16% of homes |
About 807 21st Ave
When did 807 21st Ave, Rockford, IL last sell?
807 21st Ave, Rockford, IL last sold on Jan 1, 1900, according to the county's recorded deed.
How big is 807 21st Ave, Rockford, IL?
807 21st Ave, Rockford, IL has 4 bedrooms, 2 bathrooms, 2,368 square feet of living space and a 0.90-acre lot.
When was 807 21st Ave, Rockford, IL built?
807 21st Ave, Rockford, IL was built in 1930, making it 96 years old. The building has 2 stories.
What schools serve 807 21st Ave, Rockford, IL?
807 21st Ave, Rockford, IL is assigned to Riverdahl Elementary School (elementary), rated D+; RESA Middle School (middle), rated D; Jefferson High School (high), rated F. All sit in Rockford School District 205. Attendance boundaries change — confirm with the district before relying on an assignment.
How does 807 21st Ave, Rockford, IL compare to other homes in Rockford 61104?
Among the 4,606 homes in Rockford 61104, it is bigger than 85% of them (2,368 ft² against a typical 1,578 ft²), its lot is bigger than almost none of them (3,920 ft² against a typical 0.17 ac) and it is newer than 81% of them (1930 against a typical 1920). These shares are recounted nightly from the full county assessor record for each area, not from active listings.
What are the property taxes on 807 21st Ave, Rockford, IL?
The 2025 property tax bill for 807 21st Ave, Rockford, IL was $2,260. The county assessed it at $31,599.
Closest homes
- 803 21st Ave39 ft · 4 bd · 2 ba · 2,368 ft² · Sold $55K · Oct 2020
- 809 21st Ave40 ft · 4 bd · 2 ba · 2,278 ft² · Sold $73K · Sep 1999
- 2214 S 4th St$79K78 ft · 0.18 ac · Sold Jan 1900
- 811 21st Ave80 ft · 5 bd · 2 ba · 2,216 ft² · Sold Jan 1900
- 2216 S 4th St127 ft · 4 bd · 2 ba · 1,409 ft² · Sold Jan 1900
- 2152 S 4th St$76K145 ft · 2 bd · 1 ba · 980 ft² · Sold $9K · Aug 2007
- 2218 S 4th St176 ft · 3 bd · 2 ba · 1,347 ft² · Sold Jan 1900
- 2148 S 4th St$93K195 ft · 3 bd · 2 ba · 1,925 ft² · Sold $70K · May 2004
More homes in Rockford 61104
- 1022 8th St$67K4 bd · 2 ba · 1,280 ft² · Sold $40K · Jul 2026
- 402 S Gardiner Ave4 bd · 2 ba · 1,976 ft² · Sold $98K · Jul 2026
- 1631 8th Ave4 bd · 2 ba · 2,034 ft² · Sold $135K · Jul 2026
- 721 S 3rd StResidential - Vacant Land · Sold $5K · Jul 2026
- 712 Seminary St4 bd · 2 ba · 2,450 ft² · Sold $290K · Jul 2026
- 718 Seminary St4 bd · 2 ba · 2,450 ft² · Sold $280K · Jul 2026
- 722 Seminary St4 bd · 2 ba · 2,380 ft² · Sold $290K · Jul 2026
- 1304 18th St2 bd · 3 ba · 1,880 ft² · Sold $91K · Jul 2026
- 720 18th Ave$120K3 bd · 1 ba · 1,329 ft² · Sold $107K · Jul 2026
- 2212 Christina St$85K2 bd · 2 ba · 952 ft² · Sold $99K · Jul 2026
- 803 8th Ave4 bd · 2 ba · 1,680 ft² · Sold $30K · Jul 2026
- 1818 2nd Ave$189K3 bd · 1.5 ba · 1,421 ft² · Sold $185K · Jul 2026
Assigned schools
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