San Bernardino County property record for 8439 18th St, Rancho Cucamonga, CA 91701
| Property Type | Single Family Home |
|---|---|
| Details | 4 bd · 2 ba · 1,650 sqft · built 1962 |
| Lot Size | 0.171 acres (7,440 sqft) |
| Owner | Individual Name on File |
| Last Sale | $375,000 (Apr 2004) |
| Tax Bill | $5,843 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 0202-251-04-0000 |
| Primary APN | 0202-251-04-0000 |
|---|
| Bedrooms | 4 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 8 Rooms |
| Stories | 1 Story |
| Building Area | 1,650 sqft Living Area |
| Gross Area | 2,010 sqft |
| 1st Floor Area | 1,650 sqft |
| Family Room | Family Room |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1962 |
|---|---|
| Effective Year Built | Effective 1962 |
| Architectural Style | Modern |
| Exterior Material | Stucco |
| Construction Type | Frame |
| Roof Material | Composition Shingle |
| Lot Area | 7,440 sqft (0.171 acres) |
| Lot Dimensions | 62 ft deep x 120 ft wide |
| View / Lot | Average |
| Garage Type | Attached |
| Garage Area | 360 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Patio/Porch |
| Porch Area | 162 sqft |
| Patio Area | 162 sqft |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 8439 18TH ST |
|---|---|
| City | RANCHO CUCAMONGA |
| State | CA |
| Zip | 91701-4501 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | TRACT 6517 LOT 110 |
| Legal Tract | 6517 |
| Legal Block | 1 |
| Legal Lot Number | 110 |
| Jurisdiction | SAN BERNARDINO CA |
| Township / Civil Division | ONTARIO |
| Census Block Group | 1 |
| Census Block | 1006 |
| Census Tract | 812 |
8439 18th St is owned and occupied by an individual who bought it in April 2004.
Source: San Bernardino County records, as of July 14, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 8439 18TH ST, RANCHO CUCAMONGA, CA 91701-4501 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Sole Owner |
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 | Apr 6, 2004 · Amount on File |
| Deed Sale | Apr 6, 2004 · Amount on File |
| Prior Sale | Mar 31, 2000 · Amount on File |
| Deed Document Number | 2004236003 |
| Prior Transfer Date | Jul 28, 2002 |
| Prior Transfer Doc | 0000410098 |
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 8439 18th St was $5,843 with a homeowner's exemption.
Source: San Bernardino County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | San Bernardino County |
| Municipality | Rancho Cucamonga City |
| Elementary School District | Alta Loma Elementary School District (KG - 08) |
| Secondary School District | Chaffey Joint Union High School District (09 - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $543,838 (+2%) Land $190,343 Building $353,495 | |
| 2025 | $5,843.00 Homeowner's exemption | $533,175 Land $186,611 Building $346,564 |
| 2023 | $5,565.00 (+0.29%) Homeowner's exemption | $512,472 Land $179,365 Building $333,107 |
| 2022 | $5,549.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 8439 18th St in Zone X, an area of minimal flood risk, though there have been 3 flood claims nearby since 1988.
Source: FEMA National Flood Hazard Layer, effective October 12, 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 Claims | 3 (1988–1993) |
| Most Recent Claim | Jan 1993 · Severe Winter Storm, Mud & Land Slides, & 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.
The area around 8439 18th 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 | CUCAMONGA VALLEY WATER DISTRICT serves 213,375 people · EPA ID CA3610018 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Feb 2025 |
| Lead | Under 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.
Source: FCC Broadband Data Collection, based on 552 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable | 1,000 / 35 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Frontier, GeoLinks.
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