603 Blanco St, San Marcos, TX 78666 Property Records

Hays County property record for 603 Blanco St, San Marcos, TX 78666

Property Summary

Property TypeSingle Family Home
Details2,889 sqft · built 1910
Lot Size0.494 acres (21,527 sqft)
Owner2 Individual Names on Record
Tax Bill$5,181 (2024)
Flood ZoneZone X (minimal risk)
APNR40362

Property Details

APN / Parcel Number

Primary APNR40362
Alternative APN
  • 11-7245-0300-00700-3

Interior

Stories2 Stories
Building Area2,889 sqft Living Area
1st Floor Area1,602 sqft
2nd Floor Area1,287 sqft
Fireplaces1 Fireplace
FireplaceFireplace

Exterior

Year BuiltBuilt 1910
Exterior MaterialWood Siding
Foundation TypePier/Post & Beam
Roof TypeHip
Roof MaterialComposition Shingle
Lot Area21,527 sqft (0.494 acres)
Garage TypeCarport
CarportCarport
PorchPorch
Porch Area459 sqft

Location & Zoning

Account NumberR40362
Old Parcel Number1172450300007003
Street Address603 BLANCO ST
CitySAN MARCOS
StateTX
Zip78666-3203
Property CategoryResidential
Property TypeResidential > Single Family > Home
Legal DescriptionJ C ROGERS, BLOCK 3, LOT 7, ACRES 0.4942 TAX CODES:SSM,WEU,WUS
Legal SubdivisionJ C ROGERS
Legal Block3
Legal Lot Number7
JurisdictionHAYS TX
Township / Civil DivisionSAN MARCOS
Census Block Group1
Census Block1011
Census Tract10601

Owner

Source: Hays County records, as of October 15, 2025

Owner names and exact recorded amounts shown locked on this page are available instantly with a free trial.

Owner of Record2 Individual Names on Record
Mailing Address603 BLANCO ST, SAN MARCOS, TX 78666-3203
OccupancyOwner Occupied
Owner TypeIndividual

Deeds, Mortgages & Sale History

Assessor's Deed Record

Deed Names2 Names on Deed
Last SaleJul 16, 1996
Deed SaleJul 16, 1996
Deed Document Number0001241184
Record UpdatedJun 8, 2026

Tax Assessment & Valuation

Source: Hays County assessment roll, as of August 1, 2025

Property Jurisdictions

TypeName
StateTexas
CountyHays County
MunicipalitySan Marcos City
Unified School DistrictSan Marcos Consolidated Independent School District (PK - 12)

Tax Bill & Assessment History

YearTax BillAssessed ValueAssessed Market Value
2025$446,470 (+9.69%) Land $79,250 Building $367,220$446,470 (-6.12%) Land $79,250 Building $367,220
2024$5,181.00 (-21.45%)
2023$407,020 Land $79,250 Building $396,330$475,580 Land $79,250 Building $396,330
2018$6,596.00

Assessed value and assessed market value are set for property tax purposes and are not market price estimates.

Flood

Source: FEMA National Flood Hazard Layer, effective May 21, 2026

FEMA Flood ZoneZone X
minimal risk
Flood Insurance RequirementNot required
lenders may require it

Values are read at the parcel center point; lenders make the official flood determination.

Wildfire

Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024

Wildfire RiskLow
lower than 80% of the US · lower than 94% of Texas
Wildfire Likelihood0.02% annual chance
ExposureNone
beyond ember reach

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 SystemCITY OF SAN MARCOS
serves 72,970 people · EPA ID TX1050001
Water SourceSurface water
Last State InspectionJun 2023
Lead2 ppb (2022–2024)
action level 15 ppb

Violations Reported to EPA

Water QualityTotal trihalomethanes
resolved · Oct 2025
Treatment and ProcedureNone
last 10 years
Monitoring and ReportingNone
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 327 locations within half a mile, as of December 31, 2025

ProviderMax Down / Up (Mbps)
Astound Broadband
Fiber · Cable in parts of the area
1,500 / 1,500
Spectrum
Cable
1,000 / 1,000
VTX Communications
Fixed Wireless
400 / 50
Verizon
Fixed Wireless
300 / 20
T-Mobile
Fixed Wireless
100 / 20

May also be available: Hotwire Communications.

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