Riverside County property record for 18368 Mariposa Ave, Riverside, CA 92508
| Property Type | Residential Vacant Land |
|---|---|
| Lot Size | 1 acre (43,560 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $1,405,500 (Aug 2026) |
| Tax Bill | $3,134 (2025) |
| Deeds & Mortgages | Aug 2026 Sale |
| Flood Zone | Zone X (minimal risk) |
| APN | 266-730-018 |
| Primary APN | 266-730-018 |
|---|
| Lot Area | 43,560 sqft |
|---|
| Street Address | 18368 MARIPOSA AVE |
|---|---|
| City | RIVERSIDE |
| State | CA |
| Zip | 92508-9480 |
| Property Category | Residential |
| Property Type | Vacant Land > Residential |
| Legal Description | ACRES 1.00000000 ACREAGEQUALCODE ML LOT 100 LOTTYPE L MAPPLATB 478 MAPPLATP 098 SUBDIVISIONNAME TR 32647 |
| Legal Tract | 32647 |
| Legal Lot Number | 100 |
| Jurisdiction | RIVERSIDE CA |
| Township / Civil Division | RIVERSIDE |
| Census Block Group | 3 |
| Census Block | 3005 |
| Census Tract | 42003 |
18368 Mariposa Ave, residential vacant land, is owned and occupied by two individuals who bought it in August 2026.
Source: Riverside County records, as of August 25, 2026
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 18368 MARIPOSA AVE, RIVERSIDE, CA 92508-9480 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | His Wife |
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 | 2 Names on Deed |
|---|---|
| Last Sale | Aug 14, 2026 · Amount on File |
| Deed Sale | Aug 14, 2026 · Amount on File |
| Deed Document Number | 2026256674 |
| Record Updated | Oct 29, 2026 |
| Document Type | Grant Deed |
|---|---|
| Jurisdiction | RIVERSIDE CA |
| Recording Date | Aug 14, 2026 |
| Property Address | 18368 MARIPOSA AVE, RIVERSIDE, CA 92508-9480 |
| Document Number | 0000256674 |
| Instrument Date | Mar 3, 2026 |
| Instrument | 2026256674 |
| Transaction Type | Subdivision Related Transfer |
| Record Updated | Aug 31, 2026 |
| Title Company | FIRST AMERICAN TITLE |
| Amount | Amount on Record |
|---|---|
| Tax | $312,302.10 |
| Amount Accuracy | Full Amount Stated |
| Additional |
|
| Name | Verified Name |
|---|
| Name | Verified Name |
|---|---|
| Address | 18368 MARIPOSA AVE, RIVERSIDE, CA 92508-9480 |
The 2025 property tax bill for 18368 Mariposa Ave was $3,134.
Source: Riverside County assessment roll, as of July 29, 2026
| Type | Name |
|---|---|
| State | California |
| County | Riverside County |
| Municipality | Riverside City |
| Unified School District | Riverside Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $647,700 (+281.46%) Land $647,700 | |
| 2025 | $3,134.00 | $169,793 Land $169,793 |
| 2023 | $1,854.00 (+5,880.65%) | $163,200 Land $163,200 |
| 2022 | $31.00 |
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.
FEMA maps place 18368 Mariposa Ave in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective October 14, 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.
Wildfire risk around 18368 Mariposa Ave is moderate, ranking above 66% of the US, with a 0.2% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 66% of the US · above 40% of California |
|---|---|
| Wildfire Likelihood | 0.2% annual chance |
| Exposure | Direct burnable vegetation |
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 | WESTERN MWD serves 87,955 people · EPA ID CA3310049 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Dec 2023 |
| 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 134 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: AT&T, Verizon.
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