Black Hawk County property record for 311 Dearborn Ave, Waterloo, IA 50703
| Property Type | Duplex |
|---|---|
| Details | 2 bd · 3 ba · 942 sqft · built 1924 |
| Lot Size | 0.11 acres (4,800 sqft) |
| Owner | Company Name on File |
| Tax Bill | $794 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 8912-30-184-015 |
| Primary APN | 8912-30-184-015 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 3 Baths |
| Half Baths | 2 Half Baths |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 942 sqft Total Area |
| 1st Floor Area | 780 sqft |
| Basement Area | 780 sqft |
| Flooring | Carpet |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1924 |
|---|---|
| Effective Year Built | Effective 1924 |
| Architectural Style | Duplex Single |
| Exterior Material | Vinyl |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 4,800 sqft (0.11 acres) |
| Lot Dimensions | 120 ft deep x 40 ft wide |
| Garage Type | Detached |
| Garage Area | 360 sqft |
| Parking Spaces | 1 Parking Space |
| Cooling System | None |
|---|---|
| Heating System | HVAC |
| Street Address | 311 DEARBORN AVE |
|---|---|
| City | WATERLOO |
| State | IA |
| Zip | 50703-5229 |
| Property Category | Residential |
| Property Type | Residential > Multi-Unit > Duplex |
| Legal Description | LINDEN PLACE W 40 FT E 80 FT LOT 5 BLK 11 |
| Legal Range | 12W |
| Legal Township | 89N |
| Legal Section | 30 |
| Legal Subdivision | LINDEN PLACE |
| Legal Block | 11 |
| Legal Lot Number | 5 |
| Jurisdiction | BLACK HAWK IA |
| Township / Civil Division | WATERLOO |
| Census Block Group | 2 |
| Census Block | 2023 |
| Census Tract | 800 |
311 Dearborn Ave, a duplex, is owned by a company.
Source: Black Hawk County records, as of September 1, 2026
| Owner of Record | Company Name on File |
|---|---|
| Mailing Address | PO BOX 175, WATERLOO, IA 50704-0175 |
| Owner Type | Company |
| Vesting | Company |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 311 Dearborn Ave was $794, up 7.9% from the year before.
Source: Black Hawk County assessment roll, as of October 17, 2025
| Type | Name |
|---|---|
| State | Iowa |
| County | Black Hawk County |
| Municipality | Waterloo City |
| Unified School District | Waterloo Community School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $794.00 (+7.88%) | $38,860 Land $6,080 Building $32,780 | $38,860 Land $6,080 Building $32,780 |
| 2024 | $736.00 | ||
| 2023 | $33,970 (+19.15%) Land $6,080 Building $27,890 | $33,970 Land $6,080 Building $27,890 | |
| 2022 | $626.00 | $28,510 Land $6,080 Building $22,430 | |
| 2021 | $28,510 Land $6,080 Building $22,430 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 311 Dearborn Ave in Zone X, an area of minimal flood risk, though there have been 5 flood claims nearby since 1978.
Source: FEMA National Flood Hazard Layer, effective September 27, 2026 · 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 | 2 in force |
| Nearby Flood Claims | 5 (1978–2013) |
| Claims Outside the SFHA | 3 of 5 |
| Most Recent Claim | May 2013 · 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 risk around 311 Dearborn Ave 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 99.1% of the US · lower than 91% of Iowa |
|---|---|
| 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 | WATERLOO WATER WORKS serves 69,504 people · EPA ID IA0790074 |
|---|---|
| Water Source | Groundwater |
| Last State Inspection | Nov 2023 |
| Lead | 2 ppb (2025) action level 15 ppb |
| Water Quality | None last 10 years |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | None 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 571 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Metronet Fiber | 5,120 / 5,120 |
| Mediacom Xtream Cable · Fiber in parts of the area | 1,000 / 50 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: GigFire, Nextlink, Waterloo Fiber.
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