Grundy County property record for 621 Main St, Mazon, IL 60444
| Property Type | Single Family Home |
|---|---|
| Details | 1,872 sqft · built 1958 |
| Lot Size | 0.36 acres (15,682 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $7,089 (2025) |
| Deeds & Mortgages | Oct 2025 Transfer Jun 2022 Mortgage + 1 more |
| Flood Zone | Zone X (minimal risk) |
| APN | 08-16-476-006 |
| Primary APN | 08-16-476-006 |
|---|
| Building Area | 1,872 sqft Total Area |
|---|
| Year Built | Built 1958 |
|---|---|
| Effective Year Built | Effective 1958 |
| Lot Area | 15,682 sqft (0.36 acres) |
| Street Address | 621 MAIN ST |
|---|---|
| City | MAZON |
| State | IL |
| Zip | 60444-6258 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | SCHOOL SEC NE COR DANIELS ADD 100' N & S X 157' E & W SEC 16-32-7 |
| Legal Range | 07W |
| Legal Township | 32N |
| Legal Section | 16 |
| Legal Subdivision | DANIELS ADDITION |
| Jurisdiction | GRUNDY IL |
| Township / Civil Division | MAZON |
| Census Block Group | 1 |
| Census Block | 1087 |
| Census Tract | 600 |
621 Main St is owned and occupied by an individual who acquired it in October 2025.
Source: Grundy County records, as of June 30, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 621 MAIN ST, MAZON, IL 60444-6258 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Date | Document |
|---|---|
| Oct 9, 2025 | Intrafamily Transfer, Transfer |
| Jun 24, 2022 | Deed of Trust, Mortgage · Conventional Mortgage BUSEY BANK |
| May 22, 2017 | Deed of Trust, Mortgage · Line of Credit FIRST COMMUNITY FINANCIAL BANK |
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Oct 8, 2025 |
| Transfer Doc | 0000634628 |
| Record Updated | Sep 20, 2026 |
| Document Type | Intrafamily Transfer |
|---|---|
| Jurisdiction | GRUNDY IL |
| Recording Date | Oct 9, 2025 |
| Property Address | 621 MAIN ST, MAZON, IL 60444-6258 |
| Document Number | 0000634628 |
| Map Reference | BK 213 PG 628 |
| Instrument Date | Oct 8, 2025 |
| Instrument | 634628 |
| Transaction Type | Transfer |
| Record Updated | Oct 29, 2025 |
| Tax | $0.00 |
|---|---|
| Amount Accuracy | Transfer Tax Exempt |
| Additional |
|
| Name | Verified Name |
|---|---|
| Address | 2035 S OLD MAZON RD, MAZON, IL 60444-6128 |
| Name | Verified Name |
|---|---|
| Address | 621 MAIN ST, MAZON, IL 60444-6258 |
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | GRUNDY IL |
| Property Address | 621 MAIN ST, MAZON, IL 60444-6258 |
| Transaction Type | Mortgage |
| Record Updated | Jul 13, 2022 |
| Name | Verified Name |
|---|
| Document Number | 0000614010 |
|---|---|
| Date | Jun 24, 2022 |
| Instrument | 614010 |
| Name | BUSEY BANK |
|---|---|
| Type | Bank |
| Type | Conventional Mortgage |
|---|---|
| Amount | Amount on Record |
| Term | 240 Months |
| Due | Jun 10, 2042 |
| Rate Type | Fixed Rate |
|---|
| Document Type | Deed of Trust |
|---|---|
| Jurisdiction | GRUNDY IL |
| Property Address | 621 MAIN ST, MAZON, IL 60444-6258 |
| Transaction Type | Mortgage |
| Record Updated | Feb 5, 2021 |
| Name | Verified Name |
|---|
| Document Number | 0000569941 |
|---|---|
| Date | May 22, 2017 |
| Instrument | 569941 |
| Name | FIRST COMMUNITY FINANCIAL BANK |
|---|---|
| Address | MAZON, IL 60444 |
| Type | Line of Credit |
|---|---|
| Amount | Amount on Record |
| Rate Type | Adjustable Rate |
|---|---|
| Rate | 4% |
| Change Frequency | Monthly |
The 2025 property tax bill for 621 Main St was $7,089 with a homeowner's exemption, up 5.5% from the year before.
Source: Grundy County assessment roll, as of June 30, 2026
| Type | Name |
|---|---|
| State | Illinois |
| County | Grundy County |
| County Subdivision | Mazon Township |
| Municipality | Mazon Village |
| Elementary School District | Mazon-Verona-Kinsman Elementary School District 2C (KG - 08) |
| Secondary School District | Seneca Township High School District 160 (09 - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $7,089.00 (+5.46%) | $77,779 (+5.47%) Land $7,779 Building $70,000 | $233,337 (+5.47%) Land $23,337 Building $210,000 |
| 2024 | $6,722.00 Homeowner's exemption | $73,746 Land $7,376 Building $66,370 | $221,238 Land $22,128 Building $199,110 |
| 2022 | $4,930.00 Homeowner's exemption | $60,093 Land $6,010 Building $54,083 | $180,279 Land $18,030 Building $162,249 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 621 Main St in Zone X, an area of minimal flood risk, though there have been 1 flood claim nearby since 2013.
Source: FEMA National Flood Hazard Layer, effective September 30, 2023 · 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 Policies | 5 in force |
| Nearby Flood Claims | 1 (2013) |
| Most Recent Claim | Apr 2013 · Severe Storms, Straight-line Winds, And 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 risk around 621 Main St is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 96% of the US · lower than 74% of Illinois |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond ember reach |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | MAZON serves 994 people · EPA ID IL0630500 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Jun 2024 |
| Lead | Under 1 ppb (2026–2028) action level 15 ppb |
| Copper | 1.54 mg/L (2024) action level 1.3 mg/L |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 1 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. The service area is an EPA estimate; the actual supplier may differ.
Source: FCC Broadband Data Collection, based on 129 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Xfinity Cable | 1,200 / 35 |
| Verizon Fixed Wireless | 300 / 20 |
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