Story County property record for 503 4th St, Colo, IA 50056
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,607 sqft · built 1879 |
| Lot Size | 0.217 acres (9,450 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $2,198 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 12-08-266-100 |
| Primary APN | 12-08-266-100 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Half Baths | 2 Half Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 1,607 sqft Living Area |
| 1st Floor Area | 842 sqft |
| Basement Area | 842 sqft |
| Unfinished Basement | 842 sqft |
| Flooring | Carpet |
| Interior Walls | Plaster |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1879 |
|---|---|
| Effective Year Built | Effective 1879 |
| Architectural Style | A-Frame |
| Exterior Material | Aluminum/Vinyl |
| Construction Type | Frame |
| Roof Type | Gable |
| Roof Material | Asphalt |
| Lot Area | 9,450 sqft (0.217 acres) |
| Lot Dimensions | 105 ft deep x 90 ft wide |
| Garage Type | Attached |
| Garage Area | 576 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Patio |
| Porch Area | 419 sqft |
| Patio Area | 30 sqft |
| Cooling System | None |
|---|---|
| Heating System | Forced Air with A/C |
| Heating Fuel | Gas |
| Street Address | 503 4TH ST |
|---|---|
| City | COLO |
| State | IA |
| Zip | 50056-7768 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | BLAIR'S ADD N1/2 LOT 9 & ALL LOT 10 BLK 17 |
| Legal Range | 21W |
| Legal Township | 83N |
| Legal Section | 08 |
| Legal Subdivision | BLAIRS ADD (COLO) |
| Legal Block | 17 |
| Legal Lot Number | 9,10 |
| Jurisdiction | STORY IA |
| Township / Civil Division | NEW ALBANY |
| Census Block Group | 3 |
| Census Block | 3022 |
| Census Tract | 10200 |
503 4th St is owned and occupied by an individual.
Source: Story County records, as of September 1, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | PO BOX 162, COLO, IA 50056-0162 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
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 503 4th St was $2,198 with a homeowner's exemption, up 3.7% from the year before.
Source: Story County assessment roll, as of September 30, 2025
| Type | Name |
|---|---|
| State | Iowa |
| Municipality | Colo City |
| County | Story County |
| Unified School District | Colo-NESCO Community School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2025 | $2,198.00 (+3.68%) Homeowner's exemption | $155,600 Land $32,400 Building $123,200 | $155,600 Land $32,400 Building $123,200 |
| 2024 | $2,120.00 | ||
| 2023 | $140,800 (+26.96%) Land $26,300 Building $114,500 | $140,800 Land $26,300 Building $114,500 | |
| 2022 | $2,430.00 (+24.62%) | $110,900 Land $24,300 Building $86,600 | |
| 2021 | $1,950.00 | $110,900 Land $24,300 Building $86,600 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 503 4th St in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective May 25, 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Flood Insurance Requirement | Not required lenders may require it |
Values are read at the parcel center point; lenders make the official flood determination.
The area around 503 4th St has no burnable land within ember reach, so its wildfire risk is not rated.
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.
Source: EPA Safe Drinking Water Information System, as of September 2026
| Water System | COLO WATER SUPPLY serves 853 people · EPA ID IA8520061 |
|---|---|
| Water Source | Purchased groundwater from IA REGIONAL UTILITIES ASSOC (WAVERLY) |
| Last State Inspection | Apr 2025 |
| Lead | 1 ppb (2022–2024) 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 208 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Colo Telephone Company Fiber | 1,000 / 1,000 |
| T-Mobile Fixed Wireless | 100 / 20 |
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