Guadalupe County property record for 421 Bismark St, Seguin, TX 78155
| Property Type | Single Family Home |
|---|---|
| Details | 3 bd · 2 ba · 1,176 sqft · built 1969 |
| Lot Size | 0.193 acres (8,385 sqft) |
| Owner | 2 Individual Names on File |
| Tax Bill | $3,298 (2025) |
| Flood Zone | Zone X (minimal risk) |
| APN | 1G0990026100050000 |
| Primary APN | 1G0990026100050000 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Stories | 1 Story |
| Building Area | 1,176 sqft Living Area |
| Gross Area | 1,604 sqft |
| 1st Floor Area | 1,176 sqft |
| Flooring | Laminate Plank |
| Interior Walls | Wallboard/Drywall |
| Fireplaces | 1 Fireplace |
| Fireplace | Fireplace |
| Year Built | Built 1969 |
|---|---|
| Effective Year Built | Effective 2000 |
| Exterior Material | Aluminum/Vinyl |
| Roof Type | Gable |
| Lot Area | 8,385 sqft (0.193 acres) |
| Lot Dimensions | 103 ft deep x 81 ft wide |
| Garage Type | Attached |
| Garage Area | 320 sqft |
| Parking Spaces | 2 Parking Spaces |
| Porch | Covered Porch |
| Porch Area | 108 sqft |
| Patio Area | 216 sqft |
| Water Source | Commercial |
|---|
| Street Address | 421 BISMARK ST |
|---|---|
| City | SEGUIN |
| State | TX |
| Zip | 78155-4521 |
| Property Category | Residential |
| Property Type | Residential > Single Family > Home |
| Legal Description | LOT: NE 81X 103.5 OF BLK: 261 ADDN: FARM |
| Legal Subdivision | FARM |
| Legal Block | 261 |
| Jurisdiction | GUADALUPE TX |
| Township / Civil Division | SEGUIN |
| Census Block Group | 4 |
| Census Block | 4008 |
| Census Tract | 210100 |
421 Bismark St is owned and occupied by two individuals.
Source: Guadalupe County records, as of August 12, 2026
Owner names and exact recorded amounts are on file and can be viewed instantly on this page with a free 10-day trial.
| Owner of Record | 2 Individual Names on File |
|---|---|
| Mailing Address | 421 BISMARK ST, SEGUIN, TX 78155-4521 |
| Occupancy | Owner Occupied |
| Owner Type | Individual |
| Deed Names | 2 Names on Deed |
|---|---|
| Record Updated | Sep 20, 2026 |
The 2025 property tax bill for 421 Bismark St was $3,298, up 57.1% from the year before.
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 | $127,120 (-25.75%) Land $38,060 Building $89,060 | $127,120 (-25.75%) Land $38,060 Building $89,060 | |
| 2025 | $3,298.00 (+57.12%) | $171,216 Land $41,658 Building $129,558 | $171,216 Land $41,658 Building $129,558 |
| 2024 | $2,099.00 (+14.32%) | ||
| 2023 | $1,836.00 (-23.75%) Homeowner's exemption | $168,622 Land $39,444 Building $129,178 | $168,622 Land $39,444 Building $129,178 |
| 2022 | $2,408.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA maps place 421 Bismark St in Zone X, an area of minimal flood risk, though there have been 3 flood claims nearby since 1995.
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 Claims | 3 (1995–2002) |
| Claims Outside the SFHA | 3 of 3 |
| Most Recent Claim | Jul 2002 · Severe Storms And 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.
Wildfire risk around 421 Bismark St is low, with less than a 0.01% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Low lower than 99.1% of the US · lower than 99.3% of Texas |
|---|---|
| Wildfire Likelihood | Under 0.01% 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 | 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 494 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 |
| VTX Communications Fixed Wireless | 400 / 50 |
| Verizon Fixed Wireless | 300 / 20 |
| T-Mobile Fixed Wireless | 100 / 20 |
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