The 2025 property tax bill for 1317 Longhorn Dr was $11,057.
Source: Los Angeles County assessment roll, as of August 25, 2026
Property Jurisdictions
Type
Name
State
California
County
Los Angeles County
Municipality
San Dimas City
Unified School District
Bonita Unified School District (KG - 12)
Tax Bill & Assessment History
Year
Tax Bill
Assessed Value
2026
$869,268 (+1.99%)Land $579,315Building $289,953
2025
$11,057.00
$852,284Land $567,956Building $284,328
2023
$10,083.00 (+1.59%)
$819,190Land $545,902Building $273,288
2022
$9,925.00
Assessed value is set for property tax purposes and is not a market price estimate.
Flood
FEMA maps place 1317 Longhorn Dr in Zone D, where flood risk has not been studied, though there have been 5 flood claims nearby since 1979.
Source: FEMA National Flood Hazard Layer, effective September 30, 2026 · OpenFEMA NFIP redacted claims and policies, as of September 2026
FEMA Flood Zone
Zone D undetermined · not studied
Flood Insurance Requirement
Not required lenders may require it
Nearby Flood Policies
3 in force
Nearby Flood Claims
5 (1979–2008)
Claims Outside the SFHA
5 of 5
Most Recent Claim
Jan 2008 · rainfall accumulation
Claims by Event
Severe Winter Storms And Flooding, Feb 1998 · 3 claims
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.
Wildfire
Wildfire risk around 1317 Longhorn Dr is high, ranking above 87% of the US, with a 1% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
Wildfire Risk
High above 87% of the US · above 68% of California
Wildfire Likelihood
1% annual chance
Exposure
Indirect within ember reach
Adjoins Burnable Land
Yes
Values cover an area roughly 900 ft across, not the parcel itself; insurers use their own ratings.
Drinking Water
Source: EPA Safe Drinking Water Information System, as of September 2026
Water System
GSWC-SAN DIMAS private · serves 56,564 people · EPA ID CA1910142
Water Source
Purchased surface water from several systems
Last State Inspection
May 2025
Also Mapped Here
METROPOLITAN WATER DIST. OF SO. CAL.
Lead
2 ppb (2024–2026) action level 15 ppb
Violations Reported to EPA
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.
Internet Providers
Source: FCC Broadband Data Collection, based on 282 locations within half a mile, as of December 31, 2025
Provider
Max Down / Up (Mbps)
Frontier Fiber
7,000 / 7,000
Spectrum Cable
1,000 / 1,000
May also be available: GeoLinks, T-Mobile, Verizon.