Skip to content
Skip to content
TopHapOpen in map
Single Family ResidentialResidential
$146,862$74 / 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 89How well the pricing models agreed with each other on this home. Higher means the estimate rests on stronger, more consistent data.· as of Sep 24, 2026

421 S OTTAWA AVE

DIXON, IL 61021
1.5
Baths
1,988 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.
1892
Year BuiltThe year the home was originally built, according to county records.
2
StoriesHow many floors the home has above ground.

Valuation

$147K
$130K low$163K high

Tax & Assessment

Property TaxThe property tax billed for this tax year. It usually pays for schools, roads, and local services.$2,241 (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.$42,651 (2025)
Assessed LandThe share of the county's assessed value that comes from the land itself, not the buildings.$5,332
Assessed ImprovementsThe share of the county's assessed value that comes from the buildings and other structures on the land.$37,319
Previous AssessedThe county's assessed value from the year before, useful for seeing how the assessment changed.$41,814
Assessor Market ValueThe county assessor's own opinion of market value. It is separate from our estimate and updates on the county's schedule.$127,953

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.11 in
30-Year Flood ChanceThe chance of at least one serious flood here in the next 30 years, not in any single year.6%
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 Residential
CountyLEE
Lot (acres)The size of the land the home sits on, from county records.0.17
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.

H
Dixon High SchoolD-
High · Grades 9–12 · 0.6 mi
M
Reagan Middle SchoolB
Middle · Grades 6–8 · 0.7 mi
E
Washington Elementary School
Elementary · Grades PK–1 · 1.0 mi

District: Dixon Unit School District 170

Neighborhood · ZIP 61021These 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.118
Air pollutionOverall air pollution compared with the rest of the country, where 100 is average. Lower is cleaner.85
EarthquakeEarthquake risk and likely building damage compared with the rest of the country, where 100 is average. Scores can run far above 100.38

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.91%
Bachelor's or higherThe share of adults 25 and older whose highest degree is a bachelor's degree.12%
Poverty rateThe share of people whose household income falls below the federal poverty line, which varies by family size.14%
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.21,708
DensityPeople per square mile. Higher numbers mean a more crowded, urban area.142 / mi²
Median incomeThe middle household income here — half of households earn more, half earn less.$65,791
Average incomeThe average household income. It runs higher than the median when a few high earners pull it up.$87,602
Average tempThe average temperature here across a full year.49°F
Annual precipHow much rain and melted snow falls here in a typical year.37 in
SunshineThe share of daylight hours that get direct sun in a typical year, counting cloud cover.55%

Owner Tools

Do you own this home?
Claim this home

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

421 S Ottawa 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.

  • Costs less per square foot than 88% of homes in Lee County
  • Bigger than 80% of homes in Dixon 61021
  • Has a smaller lot than 79% of homes in Lee County
  • Older than 89% of homes in Dixon 61021

What homes are worth in Dixon 61021

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

This home
$47K$511K

This home is worth more than 41% of homes in Dixon 61021.

How it measures up in Dixon 61021

The dot is this home. The mark in the middle is the typical home in Dixon 61021.

Estimated value$146,862
CheaperTypical $167,626Pricier

Pricier than 41% of homes nearby

Price per ft²$74
CheaperTypical $122Pricier

Pricier than 13% of homes nearby

Living area1,988 ft²
SmallerTypical 1,440 ft²Bigger

Bigger than 80% of homes nearby

Lot size0.17 ac
SmallerTypical 0.29 acBigger

Bigger than 29% of homes nearby

Year built1892
OlderTypical 1953Newer

Newer than 11% of homes nearby

How 421 S Ottawa Ave ranks against every home in each area.
MeasureThis homeDixon 61021Lee County
Estimated valuepricier than$146,86241% of homes37% of homes
Price per ft²pricier than$7413% of homes12% of homes
Living areabigger than1,988 ft²80% of homes77% of homes
Lot sizebigger than0.17 ac29% of homes21% of homes
Year builtnewer than189211% of homes15% of homes

About 421 S Ottawa Ave

How much is 421 S Ottawa Ave, Dixon, IL worth?

The TopHap Estimate for 421 S Ottawa Ave, Dixon, IL is $146,862 as of Sep 24, 2026. The likely range is $130,408 to $163,316. The estimate is modelled from recorded sales, assessments and the property's own characteristics — it is not an appraisal.

When did 421 S Ottawa Ave, Dixon, IL last sell?

421 S Ottawa Ave, Dixon, IL last sold on Jan 1, 1900, according to the county's recorded deed.

How big is 421 S Ottawa Ave, Dixon, IL?

421 S Ottawa Ave, Dixon, IL has 1.5 bathrooms, 1,988 square feet of living space and a 0.17-acre lot.

When was 421 S Ottawa Ave, Dixon, IL built?

421 S Ottawa Ave, Dixon, IL was built in 1892, making it 134 years old. The building has 2 stories.

What schools serve 421 S Ottawa Ave, Dixon, IL?

421 S Ottawa Ave, Dixon, IL is assigned to Dixon High School (high), rated D-; Reagan Middle School (middle), rated B; Washington Elementary School (elementary). All sit in Dixon Unit School District 170. Attendance boundaries change — confirm with the district before relying on an assignment.

How does 421 S Ottawa Ave, Dixon, IL compare to other homes in Dixon 61021?

Among the 8,518 homes in Dixon 61021, it is worth more than 41% of them ($146,862 against a typical $167,626), its price per square foot is higher than 13% of them ($74 against a typical $122), it is bigger than 80% of them (1,988 ft² against a typical 1,440 ft²), its lot is bigger than 29% of them (0.17 ac against a typical 0.29 ac) and it is newer than 11% of them (1892 against a typical 1953). Measured against all of Lee County, it is worth more than 37% 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 421 S Ottawa Ave, Dixon, IL?

The 2025 property tax bill for 421 S Ottawa Ave, Dixon, IL was $2,241. The county assessed it at $42,651.

More homes on S Ottawa Ave

Closest homes

More homes in Dixon 61021

Assigned schools

Explore the area

See this home in context

Open 421 S Ottawa Ave on TopHap’s interactive map to compare it against every sale nearby, overlay school zones and flood risk, and run a CMA.

Open in map
A flyover of TopHap's photorealistic 3D map, with recorded sale prices pinned to homes
Search any address, city, zip, or county…3D$1.9M$6.25MOpen in map