Contra Costa County property record for 104 E 6th St, Antioch, CA 94509
| Property Type | Single Family Home |
|---|---|
| Details | 2 bd · 1 ba · 768 sqft · built 1947 |
| Lot Size | 0.103 acres (4,500 sqft) |
| Owner | 2 Individual Names on File |
| Last Sale | $85,000 (Jul 2011) |
| Tax Bill | $1,763 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 066-162-016-1 |
| Primary APN | 066-162-016-1 |
|---|---|
| Alternative APN |
|
| Bedrooms | 2 Beds |
|---|---|
| Full Baths | 1 Bath |
| Total Rooms | 6 Rooms |
| Stories | 1 Story |
| Building Area | 768 sqft Living Area |
| 1st Floor Area | 768 sqft |
| Year Built | Built 1947 |
|---|---|
| Effective Year Built | Effective 1947 |
| Lot Area | 4,500 sqft (0.103 acres) |
| Garage Type | Detached |
| Garage Area | 210 sqft |
| Parking Spaces | 1 Parking Space |
| Porch | Porch |
| Heating Fuel | Solar |
|---|
| Street Address | 104 E 6TH ST |
|---|---|
| City | ANTIOCH |
| State | CA |
| Zip | 94509-1810 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Local Zoning Code | R3 |
| Legal Description | POR SW QR SEC 18 T2N R2E 45 FT X 100 FT |
| Legal Range | 02E |
| Legal Township | 02N |
| Legal Section | 18 |
| Jurisdiction | CONTRA COSTA CA |
| Township / Civil Division | ANTIOCH-PITTSBURG |
| Census Block Group | 1 |
| Census Block | 1001 |
| Census Tract | 305000 |
Source: Contra Costa County records · APN 066-162-016-1
Assessment roll updated July 14, 2026 · Last verified July 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 501 RAILROAD AVE, PITTSBURG, CA 94565-2304 |
| Owner Type | Individual |
| Vesting | Community Property |
| Deed Names | 2 Verified Names on Deed |
|---|---|
| Last Sale | Jul 27, 2011 · Amount on Record |
| Deed Sale | Jul 27, 2011 · Amount on Record |
| Prior Sale | Nov 06, 2009 · Amount on Record |
| Deed Document Number | 2011147868 |
| Prior Transfer Date | Jun 13, 2006 |
| Prior Transfer Doc | 0000207203 |
| Record Updated | Sep 20, 2026 |
Source: Contra Costa County records · Assessment roll updated July 14, 2026 · Last verified July 2026
| Type | Name |
|---|---|
| State | California |
| County | Contra Costa County |
| Municipality | Antioch City |
| Unified School District | Antioch Unified School District (KG - 12) |
Assessed value is set for property tax purposes and is not a market price estimate.
| Year | Tax Bill | Assessed Value |
|---|---|---|
| 2026 | $108,886 (+2%) Land $70,457 Building $38,429 | |
| 2025 | $1,763.00 (+6.98%) | $106,752 (+4.04%) Land $69,076 Building $37,676 |
| 2023 | $1,648.00 (+1.17%) | $102,609 Land $66,395 Building $36,214 |
| 2022 | $1,629.00 |
Source: FEMA National Flood Hazard Layer as of October 12, 2026 · USDA Forest Service Wildfire Risk to Communities as of 2024 · Last verified October 2026
| FEMA Flood Zone | Zone X minimal risk |
|---|---|
| Nearest Special Flood Hazard Area | Zone AE, within 500 ft |
| Flood Insurance Requirement | Not required lenders may require it |
| Wildfire Risk | Low lower than 99.8% of the US · lower than 99.8% of California |
|---|---|
| Wildfire Likelihood | Under 0.01% annual chance |
| Exposure | None beyond ember reach |
Values are read at the parcel center point; lenders make the official flood determination.
Source: FCC Broadband Data Collection as of December 31, 2025 · Last verified October 2026
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · DSL in parts of the area | 5,000 / 5,000 |
| Xfinity Cable | 2,000 / 250 |
| Unwired Fixed Wireless | 300 / 25 |
| T-Mobile USA Fixed Wireless | 100 / 20 |
May also be available: Verizon.
Based on FCC filings for 593 locations within half a mile of this property.
Source: EPA Safe Drinking Water Information System as of 2026 Q3 · EPA water system boundaries as of March 2026 · Last verified October 2026
| Water System | CITY OF ANTIOCH serves 116,781 people |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jan 2024 |
| 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 as reported to EPA, not water tested at this address; lead at the tap also depends on the building's own pipes. The full violation and enforcement history is in the system's EPA record.
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