San Joaquin County property record for 31361 S Koster Rd, Tracy, CA 95304
| Property Type | Rural Home |
|---|---|
| Details | 3 bd · 1 ba · 882 sqft · built 1947 |
| Lot Size | 1.41 acres (61,510 sqft) |
| Owner | 2 Company Names on Record |
| Last Sale | $320,000 (Oct 2003) |
| Flood Zone | Zone X (minimal risk) |
| APN | 255-310-190-000 |
| Primary APN | 255-310-190-000 |
|---|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 1 Bath |
| Stories | 1 Story |
| Building Area | 882 sqft Living Area |
| Year Built | Built 1947 |
|---|---|
| Architectural Style | Other |
| Construction Type | Wood |
| Lot Area | 61,510 sqft (1.41 acres) |
| Garage Type | Attached |
| Parking Spaces | 1 Parking Space |
| Cooling System | None |
|---|
| Street Address | 31361 S KOSTER RD |
|---|---|
| City | TRACY |
| State | CA |
| Zip | 95304-8824 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Rural Home |
| Local Zoning Code | 79 |
| Legal Description | REDRAW 901115 FR ORIG APN 255110744 |
| Jurisdiction | SAN JOAQUIN CA |
| Township / Civil Division | TRACY |
| Census Block Group | 1 |
| Census Block | 1005 |
| Census Tract | 5503 |
Source: San Joaquin County records, as of July 24, 2023
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Company Names on Record |
|---|---|
| Mailing Address | 31400 S KOSTER RD, TRACY, CA 95304-8824 |
| Owner Type | Company |
| Deed Names | 2 Names on Deed |
|---|---|
| Last Sale | Oct 31, 2003 · Amount on Record |
| Deed Sale | Oct 31, 2003 · Amount on Record |
| Prior Sale | Oct 31, 2003 |
| Deed Document Number | 0000251840 |
| Last Transfer Date | Dec 12, 2003 |
| Transfer Doc | 0000284512 |
| Record Updated | Jun 7, 2026 |
Source: San Joaquin County assessment roll, as of July 1, 2023
| 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 | Assessed Value |
|---|---|
| 2023 | $399,847 Land $224,914 Building $174,933 |
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 57% of the US · lower than 66% of California |
|---|---|
| Wildfire Likelihood | 0.1% annual chance |
| Exposure | None beyond ember reach |
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Source: FCC Broadband Data Collection, based on 57 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| ezWave Fixed Wireless | 1,000 / 200 |
| Matrix Broadband Fixed Wireless | 400 / 80 |
| unWired Broadband Fixed Wireless | 400 / 50 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
| Cal.net Fixed Wireless | 100 / 20 |
| AT&T Fixed Wireless | 25 / 3 |
Search by:
By searching, you agree to: Terms • Privacy • Disclosures