San Bernardino County property record for 431 E Ralston St, Ontario, CA 91761
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 1 ba · 1,136 sqft · built 1960 |
| Lot Size | 0.153 acres (6,665 sqft) |
| Owner | 2 Individual Names on Record |
| Last Sale | $275,000 (Dec 2014) |
| Tax Bill | $3,641 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1049-513-18-0000 |
| Primary APN | 1049-513-18-0000 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 5 Rooms |
| Stories | 1 Story |
| Building Area | 1,136 sqft Living Area |
| 1st Floor Area | 1,136 sqft |
| Family Room | Family Room |
| Year Built | Built 1960 |
|---|---|
| Effective Year Built | Effective 1960 |
| Architectural Style | Conventional |
| Exterior Material | Stucco |
| Construction Type | Frame |
| Roof Material | Built-Up Asphalt |
| Lot Area | 6,665 sqft (0.153 acres) |
| Lot Dimensions | 155 ft deep x 43 ft wide |
| Porch | Patio/Porch |
| Porch Area | 96 sqft |
| Patio Area | 96 sqft |
| Cooling System | None |
|---|---|
| Heating System | Floor/Wall Furnace |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 431 E RALSTON ST |
|---|---|
| City | ONTARIO |
| State | CA |
| Zip | 91761-3334 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | HASTINGS AND HEYDENS SUB LOT 32 BLK 147 EX MNL RTS RESERVATION OF RECORD |
| Legal Subdivision | HASTINGS & HEYDENS SUBDIVISION |
| Legal Block | 147 |
| Legal Lot Number | 32 |
| Jurisdiction | SAN BERNARDINO CA |
| Township / Civil Division | ONTARIO |
| Census Block Group | 3 |
| Census Block | 3008 |
| Census Tract | 1813 |
Source: San Bernardino County records, as of July 14, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Individual Names on Record |
|---|---|
| Mailing Address | 431 E RALSTON ST, ONTARIO, CA 91761-3334 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Vesting | Joint Tenants |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Dec 29, 2014 · Amount on Record |
| Deed Sale | Dec 29, 2014 · Amount on Record |
| Prior Sale | Sep 23, 2010 · Amount on Record |
| Deed Document Number | 2014496495 |
| Prior Transfer Date | Sep 22, 2014 |
| Prior Transfer Doc | 0000496497 |
| Record Updated | Oct 29, 2026 |
Source: San Bernardino County assessment roll, as of July 14, 2026
| Type | Name |
|---|---|
| State | California |
| County | San Bernardino County |
| Municipality | Ontario City |
| Secondary School District | Chaffey Joint Union High School District (09 - 12) |
| Elementary School District | Ontario-Montclair School District (KG - 08) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $337,119 (+2%) Land $117,685 Building $219,434 | |
| 2025 | $3,641.00 (+5.29%) | $330,508 (+4.04%) Land $115,377 Building $215,131 |
| 2023 | $3,458.00 (+1.32%) | $317,674 Land $110,897 Building $206,777 |
| 2022 | $3,413.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
Source: FEMA National Flood Hazard Layer, effective October 12, 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.
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 | ONTARIO MUNICIPAL UTILITIES COMPANY serves 185,010 people · EPA ID CA3610034 |
|---|---|
| Water Source | Purchased surface water from several systems |
| Last State Inspection | Jul 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 618 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Frontier Fiber | 7,000 / 7,000 |
| Spectrum Cable | 1,000 / 1,000 |
| T-Mobile Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 100 / 20 |
May also be available: GeoLinks, Verizon.
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