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Avinger, Texas
Inside Avinger's city limits, shrink-swell clay limits houses without basements on 0% of mapped land. A shallow water table limits basements on 37%, the 4th-highest of 9 cities in Cass County.
That clay share is close to Cass County's 4%. FEMA's flood data list no flood losses since 2016 in ZIP code 75630 overlapping the city. Of its 187 homes, 47% were built before 1980; the median dates from 1982.
Data as of October 13, 2026 · sources · in Cass County
expansive clay: shrink-swell limits slab homes
high water table: limits basements
flood losses since 2016 in 1 overlapping ZIP
of homes built before 1980
Foundation repair in Avinger
Foundation repair in Avinger: shrink-swell clay limits slab homes on 0% of Avinger's mapped land.
About 100 of Avinger's 187 homes are detached houses.
| Who designs the repair | The ASCE Texas Section's repair guidelines say a Texas-licensed engineer should evaluate the foundation and design the repair (2022 guidelines) |
| Prices | Cost guide ranges compared |
Soil under Avinger city limits
| Expansive clay (limits slab homes) | 0.0% |
| High water table (limits basements) | 37.3% |
| Septic fields very limited | 79.4% |
| Clay swell (LEP, by area) | 1.9% |
| High-swell land (LEP 6%+) | 0.0% |
| Mapped soil | 1,250 acres |
What the numbers mean here
On 37% of Avinger's mapped land, soil stays saturated within about 6 feet of the surface for part of the year, which is basement depth.
USDA rates 79% of the land very limited for septic absorption fields.
Drought in Cass County
100% of Cass County is in drought (D1 or worse) on the October 13, 2026 map. County detail.
Flood losses by ZIP code
FEMA flood records since 2016 in the ZIP codes that overlap Avinger. ZIP areas reach past city limits.
| ZIP | Share of city land | Flood losses | Paid |
|---|---|---|---|
| 75630 | 100% | 0 | $0 |
Homes in Avinger
| Housing units | 187 |
| Median year built | 1982 |
| Built before 1980 | 47% |
| Built 2000 or later | 30% |
| Owner-occupied | 79% |
| Median value, owner-occupied | $77,900 |
| Single-family detached | 77% |
Nearby cities
| Place | Distance | Expansive clay | High water table |
|---|---|---|---|
| Hughes Springs | 8 mi | 0% | 18% |
| Lone Star | 9 mi | 0% | 14% |
| Ore City | 12 mi | 0% | 49% |
| Daingerfield | 14 mi | 0% | 10% |
| Linden | 14 mi | 0% | 23% |
| Jefferson | 15 mi | 4% | 68% |
| Marietta | 19 mi | 0% | 70% |
| Naples | 22 mi | 16% | 52% |
Sources: USDA SSURGO (August 5, 2026) · US Drought Monitor (October 13, 2026) · FEMA NFIP v3 (September 9, 2026) · Census ACS 2020-2024. Methods · Data status