San Bernardino County property record for 318 E Princeton St, Ontario, CA 91764
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 2 ba · 1,218 sqft · built 1920 |
| Lot Size | 0.227 acres (9,897 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $2,535 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1047-543-33-0000 |
| Primary APN | 1047-543-33-0000 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 2 Baths |
| Total Rooms | 4 Rooms |
| Stories | 1 Story |
| Building Area | 1,218 sqft Living Area |
| 1st Floor Area | 1,218 sqft |
| Year Built | Built 1920 |
|---|---|
| Effective Year Built | Effective 1955 |
| Architectural Style | Conventional |
| Construction Type | Frame |
| Roof Material | Composition Shingle |
| Lot Area | 9,897 sqft (0.227 acres) |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Sewer | Municipal |
| Water Source | Commercial |
| Street Address | 318 E PRINCETON ST |
|---|---|
| City | ONTARIO |
| State | CA |
| Zip | 91764-1767 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | THAT PORTION OF LOT 800, ONTARIO COLONY LANDS, IN THE CITY OF ONTARIO, COUNTY OF SAN BERNRADINO, STATE OF CALIFORNIA, AS PER MAP RECORDED IN BOOK 11, PAGE 6 OF MAPS, IN THE OFFICE OF THE COUNTY RECORDER OF SAID COUNTY, DESCRIBED AS FOLLOWS: BEGINNING |
| Legal Subdivision | ONTARIO COLONY LANDS |
| Legal Block | 3 |
| Legal Lot Number | 800 |
| Jurisdiction | SAN BERNARDINO CA |
| Township / Civil Division | ONTARIO |
| Census Block Group | 3 |
| Census Block | 3005 |
| Census Tract | 1200 |
318 E Princeton St is owned and occupied by an individual.
Source: San Bernardino County records, as of July 14, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 318 E PRINCETON ST, ONTARIO, CA 91764-1767 |
| 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 |
|---|---|
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 318 E Princeton St was $2,535.
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 | $232,500 (+1.31%) Land $81,400 Building $151,100 | |
| 2025 | $2,535.00 | $229,500 Land $80,300 Building $149,200 |
| 2023 | $2,435.00 (-22.33%) | $223,100 Land $78,100 Building $145,000 |
| 2022 | $3,135.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 318 E Princeton St in Zone X, an area of minimal flood risk.
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 Policies | 1 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 318 E Princeton St is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.1% of the US · lower than 99.2% of California |
|---|---|
| Wildfire Likelihood | Under 0.01% 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 | 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 813 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 |
May also be available: GeoLinks, T-Mobile, Verizon.
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