Los Angeles County property record for 840 William St, Pomona, CA 91768
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 960 sqft · built 1909 |
| Lot Size | 0.216 acres (9,400 sqft) |
| Owner | Individual Name on File |
| Last Sale | $285,000 (Dec 2004) |
| Tax Bill | $7,053 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 8357-012-040 |
| Primary APN | 8357-012-040 |
|---|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 960 sqft Living Area |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1909 |
|---|---|
| Effective Year Built | Effective 1909 |
| Architectural Style | Conventional |
| Construction Type | Wood |
| Roof Type | Gable |
| Roof Material | Composition Shingle |
| Lot Area | 9,400 sqft (0.216 acres) |
| Lot Dimensions | 141 ft deep x 62 ft wide |
| Heating System | Floor/Wall Furnace |
|---|---|
| Water Source | Commercial |
| Street Address | 840 WILLIAM ST |
|---|---|
| City | POMONA |
| State | CA |
| Zip | 91768-3451 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | POT2YY |
| Legal Description | TRACT # 363 LOT 15 |
| Legal Subdivision | 363 |
| Legal Tract | 363 |
| Legal Block | 1 |
| Legal Lot Number | 15 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | EAST SAN GABRIEL VALLEY |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 402304 |
840 William St is owned and occupied by an individual who bought it in December 2004.
Source: Los Angeles County records, as of August 25, 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 | Individual Name on File |
|---|---|
| Mailing Address | 840 WILLIAM ST, POMONA, CA 91768-3451 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Dec 3, 2004 · Amount on File |
| Deed Sale | Dec 3, 2004 · Amount on File |
| Prior Sale | Aug 23, 1994 · Amount on File |
| Deed Document Number | 20043132043 |
| Prior Transfer Date | Sep 25, 1997 |
| Prior Transfer Doc | 0001741455 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 840 William St was $7,053.
Source: Los Angeles County assessment roll, as of August 25, 2026
| Type | Name |
|---|---|
| State | California |
| County | Los Angeles County |
| Municipality | Pomona City |
| Unified School District | Pomona Unified School District (KG - 12) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $529,666 (+2%) Land $418,165 Building $111,501 | |
| 2025 | $7,053.00 | $519,281 Land $409,966 Building $109,315 |
| 2023 | $6,363.00 (+1.55%) | $499,119 Land $394,048 Building $105,071 |
| 2022 | $6,266.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
FEMA maps place 840 William St in Zone X, an area of minimal flood risk.
Source: FEMA National Flood Hazard Layer, effective September 30, 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.
The area around 840 William 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 | POMONA - CITY, WATER DEPT. serves 151,713 people · EPA ID CA1910126 |
|---|---|
| Water Source | Surface water |
| Lead | 2 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 726 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Frontier Fiber | 7,000 / 7,000 |
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
May also be available: GeoLinks, T-Mobile.
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