Guadalupe County property record for 603 E Mountain St, Seguin, TX 78155
| Property Type | Single Family Home |
|---|---|
| Details | 2,881 sqft · built 1950 |
| Lot Size | 0.296 acres (12,911 sqft) |
| Owner | Individual Name on File |
| Tax Bill | $855 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1G0020045600A00000 |
| Primary APN | 1G0020045600A00000 |
|---|---|
| Alternative APNs |
|
| Stories | 1 Story |
|---|---|
| Building Area | 2,881 sqft Living Area |
| Gross Area | 3,025 sqft |
| 1st Floor Area | 2,377 sqft |
| Utility Area | 144 sqft |
| Flooring | Carpet |
| Interior Walls | Wallboard/Drywall |
| Year Built | Built 1950 |
|---|---|
| Effective Year Built | Effective 2000 |
| Exterior Material | Brick Veneer |
| Roof Type | Gable |
| Lot Area | 12,911 sqft (0.296 acres) |
| Lot Dimensions | 105 ft deep x 125 ft wide |
| Garage Type | Carport |
| Garage Area | 400 sqft |
| Carport | Carport |
| Carport Area | 400 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Covered Porch |
| Porch Area | 144 sqft |
| Total Buildings | 3 Buildings |
| Cooling System | Central |
|---|---|
| Heating System | Central |
| Street Address | 603 E MOUNTAIN ST |
|---|---|
| City | SEGUIN |
| State | TX |
| Zip | 78155-5527 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: A BLK: 456 ADDN: ACRE |
| Legal Subdivision | ACRE |
| Legal Block | 456 |
| Legal Lot Number | A |
| Jurisdiction | GUADALUPE TX |
| Township / Civil Division | SEGUIN |
| Census Block Group | 5 |
| Census Block | 5031 |
| Census Tract | 210300 |
603 E Mountain St is owned and occupied by an individual.
Source: Guadalupe County records, as of August 12, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 603 E MOUNTAIN ST, SEGUIN, TX 78155-5527 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Deed Names | Name on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 603 E Mountain St was $855 with exemptions applied.
Source: Guadalupe County assessment roll, as of August 12, 2026
| Type | Name |
|---|---|
| State | Texas |
| County | Guadalupe County |
| Municipality | Seguin City |
| Unified School District | Seguin Independent School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $252,784 (-39.82%) Land $48,332 Building $204,452 | $252,784 (-39.82%) Land $48,332 Building $204,452 | |
| 2025 | $855.00 Homeowner's exemption Senior Citizen's exemption | $420,080 Land $48,202 Building $371,878 | $420,080 Land $48,202 Building $371,878 |
| 2024 | $855.00 | ||
| 2023 | $855.00 (-52.26%) Homeowner's exemption Senior Citizen's exemption | $370,011 Land $51,319 Building $318,692 | $370,011 Land $51,319 Building $318,692 |
| 2022 | $1,791.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 603 E Mountain St in Zone X, an area of minimal flood risk, though there have been 3 flood claims nearby since 1998.
Source: FEMA National Flood Hazard Layer, effective April 27, 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 | 2 in force |
| Nearby Flood Claims | 3 (1998–2004) |
| Claims Outside the SFHA | 1 of 3 |
| Most Recent Claim | Nov 2004 · rainfall accumulation |
| Claims by Event |
|
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.
The area around 603 E Mountain St has no burnable land within ember reach, so its wildfire risk is not rated.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Not rated no burnable land within 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 | CITY OF SEGUIN serves 32,736 people · EPA ID TX0940002 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Jul 2025 |
| Lead | 2 ppb (2023–2025) action level 15 ppb |
| Water Quality | Total trihalomethanes resolved · Oct 2024 |
|---|---|
| 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. This system sells water to local utilities; the supplier billing this address may be one of them.
Source: FCC Broadband Data Collection, based on 309 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| AT&T Fiber · Fixed Wireless in parts of the area | 5,000 / 5,000 |
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
May also be available: Guadalupe Valley Electric Cooperative, VTX Communications.
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