420 S River Rd, Algonquin, IL 60102 Property Records

McHenry County property record for 420 S River Rd, Algonquin, IL 60102

Property Summary

Property TypeSingle Family Home
Details1 ba · 1,268 sqft · built 1976
Lot Size0.218 acres (9,512 sqft)
OwnerIndividual Name on Record
Flood ZoneZone X (minimal risk)
APN19-34-162-004

Property Details

APN / Parcel Number

Primary APN19-34-162-004

Interior

Full Baths1 Bath
Stories1 Story
Building Area1,268 sqft
Gross Area2,536 sqft
1st Floor Area1,268 sqft

Exterior

Year BuiltBuilt 1976
Architectural StyleRanch
Exterior MaterialFrame Siding
Lot Area9,512 sqft (0.218 acres)

Utilities, Heating & Cooling

Heating SystemForced Air

Location & Zoning

Street Address420 S RIVER RD
CityALGONQUIN
StateIL
Zip60102-2843
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionDOC 817091 LT 5 DIERCKS ADDN
Legal Range08E
Legal Township43N
Legal Section34
Legal SubdivisionDIERCKS ADD
Legal Block162
Legal Lot Number5
JurisdictionMCHENRY IL
Township / Civil DivisionALGONQUIN
Census Block Group2
Census Block2002
Census Tract871310

Owner

Source: McHenry County records, as of May 13, 2024

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of RecordIndividual Name on Record
Mailing Address420 S RIVER RD, ALGONQUIN, IL 60102-2843
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed NamesName on Deed
Record UpdatedJun 7, 2026

Tax Assessment & Valuation

Source: McHenry County assessment roll, as of January 1, 2022

Property Jurisdictions

TypeName
StateIllinois
MunicipalityAlgonquin Village
CountyMcHenry County
County SubdivisionAlgonquin Township
Unified School DistrictCommunity Unit School District 300 (PK - 12)

Tax Bill & Assessment History

YearAssessed ValueAssessed Market Value
2022$92,694 Land $24,337 Building $68,357$278,082 Land $73,011 Building $205,071

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

Source: FEMA National Flood Hazard Layer, effective February 28, 2025 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood ZoneZone X
minimal risk
Nearest Special Flood Hazard AreaZone AE, within 100 ft
Flood Insurance RequirementNot required
lenders may require it
Community Rating SystemClass 6 (20% premium discount)
Nearby Flood Policies5 in force
Nearby Flood Claims5 (1978–2017)
Claims Outside the SFHA2 of 5
Most Recent ClaimJul 2017 · river or lake flooding

Values are read at the parcel center point; flood claims are located to the census block group, not this parcel; lenders make the official flood determination.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskLow
lower than 99.1% of the US · lower than 94% of Illinois
Wildfire LikelihoodUnder 0.01% annual chance
ExposureNone
beyond ember reach

Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.

Drinking Water

Source: EPA Safe Drinking Water Information System, as of September 2026

Water SystemALGONQUIN
serves 30,700 people · EPA ID IL1110050
Water SourceGroundwater
Last State InspectionAug 2025
Lead2 ppb (2026–2028)
action level 15 ppb
Copper1.6 mg/L (2022–2024)
action level 1.3 mg/L

Violations Reported to EPA

Water QualityNone
last 10 years
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
last 3 years

Results are for the whole water system, not water tested at this address; lead at the tap also depends on the building's own pipes.

Internet Providers

Source: FCC Broadband Data Collection, based on 362 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Xfinity
Cable
2,000 / 250
Verizon
Fixed Wireless
300 / 20
T-Mobile
Fixed Wireless
100 / 20
AT&T
DSL · Fixed Wireless in parts of the area
100 / 20

Nearby Properties on S River Rd

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