Jo Daviess County property record for 231 Diagonal St, Galena, IL 61036
| Property Type | Single Family Home |
|---|---|
| Details | 1,540 sqft · built 1850 |
| Lot Size | 0.06 acres (2,614 sqft) |
| Owner | Company Name on Record |
| Last Sale | $115,000 (Oct 2016) |
| Tax Bill | $4,016 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 22-100-115-00 |
| Primary APN | 22-100-115-00 |
|---|
| Stories | 2 Stories |
|---|---|
| Building Area | 1,540 sqft Total Area |
| Year Built | Built 1850 |
|---|---|
| Effective Year Built | Effective 1850 |
| Exterior Material | Brick |
| Construction Type | Brick |
| Lot Area | 2,614 sqft (0.06 acres) |
| Street Address | 231 DIAGONAL ST |
|---|---|
| City | GALENA |
| State | IL |
| Zip | 61036-2240 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOTS IN WEDGE BLOCK C W 49' OF N 25' LOT 5 & PT LOT 6 |
| Legal Subdivision | CITY GALENA |
| Legal Block | C |
| Legal Lot Number | 5-6 |
| Jurisdiction | JO DAVIESS IL |
| Township / Civil Division | WEST GALENA |
| Census Block Group | 3 |
| Census Block | 3009 |
| Census Tract | 20300 |
Source: NPS National Register of Historic Places, as of August 1, 2026
| Historic District | Within the Galena Historic District listed 1969 · 1,000 contributing resources · NRIS 69000056 |
|---|---|
| Individually Listed | Link, Oliver L. and Catherine, House listed 2013 · 1 contributing resources · NRIS 13000584 |
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
Source: Jo Daviess County records, as of October 16, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on Record |
|---|---|
| Mailing Address | 219 S PROSPECT ST, GALENA, IL 61036-2119 |
| Owner Type | Company |
| Vesting | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Oct 18, 2016 · Amount on Record |
| Deed Sale | Oct 18, 2016 · Amount on Record |
| Record Updated | Oct 29, 2026 |
Source: Jo Daviess County assessment roll, as of October 16, 2026
| Type | Name |
|---|---|
| State | Illinois |
| County | Jo Daviess County |
| County Subdivision | West Galena Township |
| Municipality | Galena City |
| Unified School District | Galena Unit School District 120 (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $4,016.00 (+2.82%) | $56,272 (+11.09%) Land $3,703 Building $52,569 | $168,833 (+11.09%) Land $11,110 Building $157,723 |
| 2024 | $3,906.00 (-7.18%) | $50,654 (+12.34%) Land $3,333 Building $47,321 | $151,977 (+12.34%) Land $10,000 Building $141,977 |
| 2022 | $4,208.00 | $45,088 Land $2,455 Building $42,633 | $135,278 Land $7,366 Building $127,912 |
Assessed value and assessed market value are set for property tax purposes, not market price estimates; both are a fraction of this property's market value.
Source: FEMA National Flood Hazard Layer, effective June 24, 2021 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 6 in force |
| Nearby Flood Claims | 10 (1985–2018) |
| Claims Outside the SFHA | 2 of 10 |
| Most Recent Claim | Feb 2018 · 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 80% of the US · above 71% of Illinois |
|---|---|
| Wildfire Likelihood | 0.01% annual chance |
| Exposure | Indirect within 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 | GALENA serves 3,308 people · EPA ID IL0850200 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Jan 2025 |
| Lead | 4 ppb (2026) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | Lead service line inventory Oct 2024 |
| Monitoring and Reporting | 4 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 359 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Jo-Carroll Energy Fiber | 1,000 / 1,000 |
| Mediacom Xtream Cable | 1,000 / 50 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: JCWIFI.com, Nextlink.
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