San Joaquin County property record for 31300 S Koster Rd, Tracy, CA 95304
| Property Type | Rural Home |
|---|---|
| Details | 3 bd · 2 ba · 1,776 sqft · built 1990 |
| Lot Size | 58.6 acres (2,555,665 sqft) |
| Owner | Owner Name on Record |
| Last Sale | $710,000 (Sep 2005) |
| Tax Bill | $15,829 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 255-270-450-000 |
| Primary APN | 255-270-450-000 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Stories | 1 Story |
| Building Area | 1,776 sqft |
| Year Built | Built 1990 |
|---|---|
| Lot Area | 2,555,665 sqft (58.6 acres) |
| Street Address | 31300 S KOSTER RD |
|---|---|
| City | TRACY |
| State | CA |
| Zip | 95304-8824 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Rural Home |
| Legal Description | 06-FM PT 42/PT OF 40/PT TO 48/05319703/05008429 |
| Jurisdiction | SAN JOAQUIN CA |
| Township / Civil Division | TRACY |
| Census Block Group | 1 |
| Census Block | 1010 |
| Census Tract | 5503 |
Source: San Joaquin County records, as of September 29, 2025
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Owner Name on Record |
|---|---|
| Mailing Address | 6125 WOODED RUN DR, COLUMBIA, MD 21044-3855 |
| Deed Names | Name on Deed |
|---|---|
| Last Sale | Sep 15, 2005 · Amount on Record |
| Deed Sale | Sep 15, 2005 · Amount on Record |
| Deed Document Number | 0000230803 |
| Last Transfer Date | Apr 11, 2008 |
| Transfer Doc | 0000057873 |
| Record Updated | Jun 8, 2026 |
Source: San Joaquin County assessment roll, as of July 1, 2025
| Type | Name |
|---|---|
| State | California |
| County | San Joaquin County |
| Secondary School District | Tracy Unified School District (9-12) (09 - 12) |
| Elementary School District | New Jerusalem Elementary School District (KG - 08) |
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2025 | $15,829.00 (+4.88%) | $1,478,142 (+4.04%) Land $1,209,367 Building $268,775 |
| 2023 | $15,093.00 (+1.76%) | $1,420,746 Land $1,162,406 Building $258,340 |
| 2022 | $14,832.00 |
Assessed value is set for property tax purposes and is not a market price estimate.
Source: FEMA National Flood Hazard Layer, effective September 27, 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 |
| Community Rating System | Class 7 (15% premium discount) |
| Nearby Flood Policies | 3 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.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 63% of the US · lower than 61% 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.
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