Hidalgo County property record for 400 Sioux Rd, Alamo, TX 78516
| Property Type | Mobile Home |
|---|---|
| Details | 3 bd · 2 ba · 1,064 sqft · built 1975 |
| Lot Size | 0.533 acres (23,220 sqft) |
| Owner | Individual Name on File |
| Last Sale | $34,500 (Jul 2010) |
| Tax Bill | $1,527 (2025) |
| APN | S359101000002100 |
| Primary APN | S359101000002100 |
|---|---|
| Alternative APNs |
|
| Bedrooms | 3 Beds |
|---|---|
| Full Baths | 2 Baths |
| Building Area | 1,064 sqft Living Area |
| 1st Floor Area | 1,064 sqft |
| Year Built | Built 1975 |
|---|---|
| Effective Year Built | Effective 1995 |
| Architectural Style | Mobile Home |
| Exterior Material | Aluminum/Vinyl |
| Roof Type | Gable |
| Roof Material | Metal |
| Lot Area | 23,220 sqft (0.533 acres) |
| Lot Dimensions | 387 ft deep x 60 ft wide |
| Canopy | 616 sqft |
| Cooling System | HVAC |
|---|---|
| Heating Fuel | Gas |
| Street Address | 400 SIOUX RD |
|---|---|
| City | ALAMO |
| State | TX |
| Zip | 78516-9785 |
| Property Category | Residential |
| Property Type | Residential > Prefabricated > Mobile Home |
| Local Zoning Code | RS |
| Legal Description | SIOUX ESTATES UT NO.1 LOT 21 |
| Legal Subdivision | SIOUX ESTATES UT NO. 1 - SDN |
| Legal Block | 1 |
| Legal Lot Number | 21 |
| Jurisdiction | HIDALGO TX |
| Township / Civil Division | MCALLEN-PHARR |
| Census Block Group | 1 |
| Census Block | 1011 |
| Census Tract | 21905 |
Source: NPS National Register of Historic Places, as of August 1, 2026
| Individually Listed | Louisiana-Rio Grande Canal Company Irrigation System listed 1995 · 3 contributing resources · NRIS 95001284 |
|---|
Federal listing alone does not restrict alterations; local historic district rules, which this data does not cover, may apply.
400 Sioux Rd, a mobile home, is owned by an individual who bought it in July 2010.
Source: Hidalgo County records, as of September 16, 2026
| Owner of Record | Individual Name on File |
|---|---|
| Mailing Address | 402 SIOUX RD, ALAMO, TX 78516-9785 |
| 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 |
|---|---|
| Last Sale | Jul 6, 2010 · Amount on File |
| Deed Sale | Jul 6, 2010 · Amount on File |
| Prior Sale | Dec 4, 2007 · Amount on File |
| Deed Document Number | 20102117012 |
| Record Updated | Oct 29, 2026 |
The 2025 property tax bill for 400 Sioux Rd was $1,527, up 16.8% from the year before.
Source: Hidalgo County assessment roll, as of September 16, 2026
| Type | Name |
|---|---|
| State | Texas |
| County | Hidalgo County |
| Unified School District | Donna Independent School District (PK - 12) |
| Year | Tax Bill | Assessed Value | Assessed Market Value |
|---|---|---|---|
| 2026 | $80,541 (+3.87%) Land $67,338 Building $13,203 | $80,541 (+1.41%) Land $67,338 Building $13,203 | |
| 2025 | $1,527.00 (+16.83%) | $77,542 Land $67,338 Building $12,083 | $79,421 Land $67,338 Building $12,083 |
| 2024 | $1,307.00 (+1.79%) | ||
| 2023 | $1,284.00 (-2.95%) | $64,618 Land $44,118 Building $20,500 | $64,618 Land $44,118 Building $20,500 |
| 2022 | $1,323.00 |
Assessed value and assessed market value are set for property tax purposes and are not market price estimates.
FEMA has no flood map on file for 400 Sioux Rd; there have been 3 flood claims nearby since 2020.
Source: FEMA National Flood Hazard Layer · OpenFEMA NFIP redacted claims and policies, as of September 2026
| FEMA Flood Zone | Not on file |
|---|---|
| Nearby Flood Policies | 8 in force |
| Nearby Flood Claims | 3 (2020–2025) |
| Claims Outside the SFHA | 3 of 3 |
| Most Recent Claim | Mar 2025 · Severe Storms And Flooding |
| 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.
Wildfire risk around 400 Sioux Rd is moderate, ranking above 43% of the US, with a 0.08% annual chance of wildfire.
Source: USDA Forest Service Wildfire Risk to Communities (2nd edition), as of 2024
| Wildfire Risk | Moderate above 43% of the US · lower than 83% of Texas |
|---|---|
| Wildfire Likelihood | 0.08% 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 | NORTH ALAMO WSC serves 171,195 people · EPA ID TX1080029 |
|---|---|
| Water Source | Surface water |
| Last State Inspection | Aug 2024 |
| Lead | Under 1 ppb (2024–2026) action level 15 ppb |
| Water Quality | Total trihalomethanes resolved · Oct 2025 |
|---|---|
| Treatment and Procedure | None last 10 years |
| Monitoring and Reporting | 3 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 203 locations within half a mile, as of December 31, 2025
| Provider | Max Down / Up (Mbps) |
|---|---|
| Metronet Fiber | 5,120 / 5,120 |
| Spectrum Cable · Fiber in parts of the area | 1,000 / 1,000 |
| TWIN Fixed Wireless | 400 / 100 |
| VTX Communications Fixed Wireless | 400 / 50 |
| Verizon Fixed Wireless | 300 / 20 |
| AT&T Fixed Wireless · Fiber in parts of the area | 100 / 20 |
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