The 2025 property tax bill for 421 White Oak Cir was $15,625 with a homeowner's exemption, down 2.2% from the year before.
Source: Collin County assessment roll, as of March 16, 2026
Property Jurisdictions
Type
Name
State
Texas
County
Collin County
Unified School District
Anna Independent School District (PK - 12)
Tax Bill & Assessment History
Year
Tax Bill
Assessed Value
Assessed Market Value
2025
$15,625.00 (-2.23%)Homeowner's exemption
$1,200,134Land $224,900Building $975,234
$1,200,134Land $224,900Building $975,234
2024
$15,982.00
2023
$431,148Land $155,700Building $275,448
$431,148Land $155,700Building $275,448
2022
$6,504.00
Assessed value is set for property tax purposes, not a market price estimate; it is a fraction of this property's market value.
Flood
FEMA maps place 421 White Oak Cir in Zone X, an area of minimal flood risk, though there have been 3 flood claims nearby since 2018.
Source: FEMA National Flood Hazard Layer, effective October 13, 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
Nearby Flood Policies
3 in force
Nearby Flood Claims
3 (2018–2020)
Most Recent Claim
Mar 2020 · other causes
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 421 White Oak Cir is moderate, ranking above 52% of the US, with a 0.09% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
Wildfire Risk
Moderate above 52% of the US · lower than 71% of Texas
Wildfire Likelihood
0.09% 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
WESTMINSTER SUD serves 2,424 people · EPA ID TX0430049
Water Source
Groundwater
Last State Inspection
Sep 2024
Lead
Under 1 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
1 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. This system sells water to local utilities; the supplier billing this address may be one of them.
Internet Providers
Source: FCC Broadband Data Collection, based on 22 locations within half a mile, as of December 31, 2025
Provider
Max Down / Up (Mbps)
Starlink Satellite
280 / 30
T-Mobile Fixed Wireless
100 / 20
AT&T Fixed Wireless · Fiber in parts of the area
25 / 3
May also be available: 360 Broadband, Rise Broadband, Verizon.