Weld County property record for 9428 Aggregate Blvd, Longmont, CO 80504
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,342 sqft · built 1940 |
| Lot Size | 1.25 acres (54,450 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $3,398 (2025) |
| Flood Zone | Zone X (moderate risk) |
| APN | 1.31-31-5-E+-11 |
| Primary APN | 1.31-31-5-E+-11 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Plumbing Fixtures | 6 Plumbing Fixtures |
| Stories | 1 Story |
| Building Area | 1,342 sqft Living Area |
| 1st Floor Area | 1,342 sqft |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1940 |
|---|---|
| Effective Year Built | Effective 1940 |
| Architectural Style | Ranch |
| Exterior Material | Frame Hardboard |
| Construction Type | Wood |
| Roof Material | Composition Shingle |
| Lot Area | 54,450 sqft (1.25 acres) |
| Porch | Slab |
|---|---|
| Porch Area | 272 sqft |
| Shed | 1 Shed |
| Shed Area | 420 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Account Number | R5619686 |
|---|---|
| Street Address | 9428 AGGREGATE BLVD |
| City | LONGMONT |
| State | CO |
| Zip | 80504-9442 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | 25143-A PT SW4 15 2 68 BEG 209S & 27E OF NW COR S398.01 N34D13E 481.32 W270.66 M/L TO BEG |
| Legal Range | 68 |
| Legal Township | 02 |
| Legal Section | 15 |
| Legal Block | 1 |
| Jurisdiction | WELD CO |
| Township / Civil Division | ERIE-FREDERICK |
| Census Block Group | 1 |
| Census Block | 1010 |
| Census Tract | 2017 |
9428 Aggregate Blvd is owned and occupied by an individual who acquired it in December 2022.
Source: Weld County records, as of October 21, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 9428 AGGREGATE BLVD, LONGMONT, CO 80504-9442 |
| 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 |
|---|---|
| Last Sale | Jan 20, 1983 |
| Deed Sale | Jan 20, 1983 |
| Prior Sale | Jan 20, 1983 · Amount on File |
| Last Transfer Date | Dec 23, 2022 |
| Transfer Doc | 0004875186 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 9428 Aggregate Blvd was $3,398, up 33.1% from the year before.
Source: Weld County assessment roll, as of May 27, 2026
| Type | Name |
|---|---|
| State | Colorado |
| County | Weld County |
| Municipality | Frederick Town |
| Unified School District | St. Vrain Valley School District RE 1J (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $33,060 (-2.07%) Land $10,910 Building $22,150 | $540,157 (-) Land $178,240 Building $361,917 | |
| 2025 | $3,398.00 (+33.1%) | $33,760 Land $11,140 Building $22,620 | $540,157 Land $178,240 Building $361,917 |
| 2024 | $2,553.00 (+4.8%) | ||
| 2023 | $2,436.00 | $31,500 Land $12,680 Building $18,820 | $465,624 Land $187,386 Building $278,238 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 9428 Aggregate Blvd in Zone X, an area of moderate flood risk, within 500 ft of a high-risk flood zone.
Source: FEMA National Flood Hazard Layer, effective June 28, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Zone X moderate risk |
|---|---|
| 500-Year Floodplain | Yes 0.2% annual chance |
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Nearby Flood Policies | 2 in force |
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 9428 Aggregate Blvd is low, with a 0.02% 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 98.4% of Colorado |
|---|---|
| Wildfire Likelihood | 0.02% 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 | LEFT HAND WD serves 20,280 people · EPA ID CO0107471 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jun 2022 |
| Lead | 1 ppb (2023–2025) 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.
Source: FCC Broadband Data Collection, based on 42 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 |
| CenturyLink DSL | 140 / 20 |
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