Texas Porch

Flood / Hurricane

Storm Surge Is the Biggest Hurricane Threat Here

Calhoun County's low coastal elevation makes it highly vulnerable to storm surge — rapidly rising ocean water that can travel miles inland during a hurricane — so knowing your flood zone and evacuation route matters before a storm forms.

Calhoun County Home & Property

Storm surge — not wind — is the deadliest part of most Gulf Coast hurricanes. When Hurricane Harvey made landfall in 2017, storm surge up to 12.5 feet hit parts of Calhoun and neighboring Aransas and Refugio counties. The county's flat, low-lying terrain near Matagorda Bay, Espiritu Santo Bay, and the Gulf shoreline gives surge water few natural barriers.

Every property in Calhoun County has an official FEMA flood zone designation. You can look yours up at the FEMA Flood Map Service Center (msc.fema.gov) by address. Properties in high-risk zones (Zone A or AE) typically require flood insurance if financed with a federally backed mortgage.

The county website links to the TxDOT evacuation map and resources from the Texas Division of Emergency Management. The National Hurricane Center (nhc.noaa.gov) and National Weather Service are the official sources for storm tracks and surge watches. Make an evacuation plan before hurricane season each year, not the day a storm is named.

Source to confirm: Calhoun County — Hurricane Preparedness

More Calhoun County notes

Property tax

Homestead Exemption Cuts Your School Tax Bill

Texas law requires school districts to subtract $140,000 from the appraised value of your primary home before calculating school taxes — but you must apply at the Calhoun County Appraisal District to claim it.

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Property tax

Ag Valuation Taxes Land on Productivity, Not Market Price

Landowners who use property for farming, ranching, or qualifying wildlife management can apply for 1-d-1 open-space appraisal, which bases taxes on what the land can produce rather than its market value.

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Coastal windstorm / TWIA

Coastal Properties Need Separate Windstorm Coverage

Calhoun County is one of the 14 first-tier coastal counties where standard homeowners policies typically exclude wind and hail, so most property owners need a separate TWIA policy.

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Public lands / Fishing / Hunting

Matagorda Island WMA: Fishing, Hunting, and Camping by Boat Only

Matagorda Island Wildlife Management Area, accessible only by boat from Port O'Connor, offers 56,688 acres of barrier island for fishing, hunting, camping, and wildlife watching with no motorized vehicles allowed.

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