Los Angeles County property record for 600 E Mariposa St, Altadena, CA 91001
| Property Type | Federal Property (Exempt) |
|---|---|
| Lot Size | 1.74 acres (75,857 sqft) |
| Owner | Company Name on Record |
| Flood Zone | Zone X (minimal risk) |
| APN | 5840-010-900 |
| Primary APN | 5840-010-900 |
|---|
| Lot Area | 75,857 sqft |
|---|
| Street Address | 600 E MARIPOSA ST |
|---|---|
| City | ALTADENA |
| State | CA |
| Zip | 91001-2211 |
| Property Category | Public Works |
| Property Type | Public Works > Federal Property (Exempt) |
| Local Zoning Code | LCR1* |
| Legal Description | MAP 1 ALTADENA VAC ST ADJ ON NE AND LOT COM SE ON NE LINE OF LOT 5 BLK 14, 60 FT FROM MOST N COR OF SD LOT TH SE ON NE LINE OF LOTS 5, 6 AND 7 SD BLK TO SE LINE OF SD LOT 7 TH SW THEREON 285 FT TH PART OF LOTS 5, 6 AND LOT 7 BLK 14 |
| Legal Subdivision | ALTADENA |
| Legal Block | 14,60 |
| Legal Lot Number | 5 |
| Jurisdiction | LOS ANGELES CA |
| Township / Civil Division | PASADENA |
| Census Block Group | 3 |
| Census Block | 3000 |
| Census Tract | 461100 |
Source: Los Angeles County records, as of May 21, 2026
Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.
| Owner of Record | Company Name on Record |
|---|---|
| Mailing Address | 600 E MARIPOSA ST, ALTADENA, CA 91001-2211 |
| Owner Type | Company |
| Deed Names | Name on Deed |
|---|---|
| Last Transfer Date | Oct 4, 2022 |
| Transfer Doc | 0000966063 |
| Record Updated | Sep 20, 2026 |
Source: Los Angeles County assessment roll, as of May 21, 2026
| Type | Name |
|---|---|
| State | California |
| County | Los Angeles County |
| Unified School District | Pasadena Unified School District (KG - 12) |
| Year | Assessed Value |
|---|---|
| 2025 | $51,743 (-) Land $51,743 |
| 2023 | $51,743 Land $51,743 |
Assessed value is set for property tax purposes and is not a market price estimate.
Source: FEMA National Flood Hazard Layer, effective September 30, 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 6 (20% premium discount) |
| Nearby Flood Policies | 1 in force |
| Nearby Flood Claims | 1 (1986) |
| Claims Outside the SFHA | 1 of 1 |
| Most Recent Claim | Mar 1986 · river or lake flooding |
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 | Low lower than 66% of the US · lower than 80% of California |
|---|---|
| Wildfire Likelihood | 0.02% 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: EPA Safe Drinking Water Information System, as of September 2026
| Water System | RUBIO CANON LAND & WATER ASSOCIATION private · serves 6,646 people · EPA ID CA1910140 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Sep 2022 |
| Lead | Under 1 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 544 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless, DSL in parts of the area | 5,000 / 5,000 |
| Spectrum Cable | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: GeoLinks.
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