509 4th Ave, Mendota, IL 61342 Property Records

LaSalle County property record for 509 4th Ave, Mendota, IL 61342

Property Summary

Property Type	Single Family Home
Details	1,092 sqft · built 1958
Lot Size	0.21 acres (9,148 sqft)
Owner	2 Individual Names on Record
Tax Bill	$3,426 (2025)
Flood Zone	Zone X (minimal risk)
APN	`01-33-409-003`

Property Details

APN / Parcel Number

Primary APN	`01-33-409-003`
Alternative APN	`01-33-430-002`

Interior

Plumbing Fixtures	5 Plumbing Fixtures
Stories	1 Story
Building Area	1,092 sqft Total Area

Exterior

Year Built	Built 1958
Effective Year Built	Effective 1958
Lot Area	9,148 sqft (0.21 acres)

Location & Zoning

Street Address	509 4TH AVE
City	MENDOTA
State	IL
Zip	61342-2234
Property Category	Residential
Property Type	Residential > Single Family > Home
Legal Description	TOWN OF MENDOTA, S45' LT 10, LT 12 BLK 39 SEC 33-36-1
Legal Range	01
Legal Township	36
Legal Section	33
Legal Subdivision	MENDOTA (ORIGINAL TOWN)
Legal Block	39
Legal Lot Number	10-12
Jurisdiction	LASALLE IL
Township / Civil Division	MENDOTA
Census Block Group	1
Census Block	1034
Census Tract	962000

Owner

Source: LaSalle County records, as of October 20, 2026

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

Owner of Record	2 Individual Names on Record
Mailing Address	509 4TH AVE, MENDOTA, IL 61342-2234
Occupancy	Owner Occupied
Owner Type	Individual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names	2 Names on Deed
Record Updated	Oct 29, 2026

Tax Assessment & Valuation

Source: LaSalle County assessment roll, as of June 29, 2026

Property Jurisdictions

Type	Name
State	Illinois
County	LaSalle County
County Subdivision	Mendota Township
Municipality	Mendota City
Elementary School District	Mendota Community Consolidated School District 289 (PK - 08)
Secondary School District	Mendota Township High School District 280 (09 - 12)

Tax Bill & Assessment History

Year	Tax Bill	Assessed Value	Assessed Market Value
2025	$3,426.00 (+11.16%)	$45,504 (+17.49%) Land $6,540 Building $38,964	$136,512 (+17.49%) Land $19,620 Building $116,892
2024	$3,082.00
2023		$38,729 (+9.69%) Land $5,566 Building $33,163	$116,187 (+9.69%) Land $16,698 Building $99,489
2022		$35,307 Land $5,074 Building $30,233	$105,921 Land $15,222 Building $90,699

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 March 29, 2024 · OpenFEMA NFIP redacted claims and policies, as of September 2026

FEMA Flood Zone	Zone X minimal risk
Flood Insurance Requirement	Not required lenders may require it
Nearby Flood Claims	1 (1978)
Most Recent Claim	Jun 1978 · tidal / storm surge

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 Risk	Not rated no burnable land within 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 System	MENDOTA serves 7,100 people · EPA ID IL0990550
Water Source	Groundwater
Last State Inspection	Aug 2023
Lead	7 ppb (2026) action level 15 ppb

Violations Reported to EPA

Water Quality	Haloacetic acids resolved · Jan 2021
Treatment and Procedure	None last 10 years
Monitoring and Reporting	3 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 358 locations within half a mile, as of December 31, 2025

Provider	Max Down / Up (Mbps)
Frontier Fiber	7,000 / 7,000
Xfinity Cable	1,200 / 35
Surf Internet Fiber	1,000 / 1,000
Verizon Fixed Wireless	300 / 20
AT&T Fixed Wireless	100 / 20
T-Mobile Fixed Wireless	100 / 20