The Real Cost of Living in Port O'Connor, Texas

The Headline Price -- and Why It Moves So Much

Different sources report meaningfully different Port O'Connor numbers within roughly the same period. Redfin's own market-trends page put the median sale price at $388,000 in October 2025, described as down 29.5% from the year prior. A separate aggregator (via search synthesis of a July 2026 snapshot) put the median list price at $499,000, with a median value of $272 per square foot -- itself down about 4% year-over-year. Active-listing counts and average asking prices also vary by aggregator: one source cited 53 active listings averaging $328,792 as of June 2026; another cited 56 listings averaging $341,696. None of these figures is fabricated, and none should be treated as a precise, stable "the market" number -- they are different snapshots of a genuinely small, low-transaction-volume coastal town, where a handful of high- or low-end closings in any given month can swing a reported median substantially in either direction.

One consistent signal across sources: this is not currently a fast, competitive market. One aggregator described homes typically selling for about 7% below list price and going pending in around 119 days on average -- a buyer's-market read, not a bidding-war read. The practical takeaway: treat any single quoted "Port O'Connor median" as a rough midpoint of a wide, thinly-traded range, and get an actual comparative market analysis with real closed comps for the specific property type (waterfront canal lot, bay-view, or interior) from a local agent, rather than leaning on a town-wide aggregate.

Property Tax: A Real, Sourced Rate -- and What It Actually Costs

Calhoun County's median effective property tax rate is reported at roughly 1.38% (per one property-tax aggregator) to 1.46% (per another), both below the Texas state median of about 1.69% but still meaningfully above the U.S. national median of roughly 1.02%. Within the county specifically, rates vary by taxing jurisdiction -- Point Comfort was cited with the highest median effective rate in the county at roughly 1.91%, and Palacios the lowest at roughly 1.06% -- which means Port O'Connor's own effective rate should be confirmed against the specific taxing entities (county, county-wide school district, any special districts) that apply to a given parcel, not assumed from the county median alone. Applying the roughly 1.4% county-median rate directly as a rough planning number: a $400,000 assessed home carries an estimated tax bill of roughly $5,600/year; a $500,000 home, roughly $7,000/year. Calhoun County's reported median annual tax bill overall was cited at roughly $1,200 -- well below the roughly $2,400 national median -- though that county-wide figure reflects the mix of far less expensive inland Calhoun County housing alongside Port O'Connor's higher-value waterfront stock, so it should not be read as representative of what a specific Port O'Connor purchase will owe. These are rate-times-value planning estimates, not actual tax bills -- only the Calhoun County Appraisal District can confirm a specific parcel's current assessed value and applicable rate.

Windstorm Insurance: A Mandatory Second Policy, and a Real Closing Risk

This is the single most important structural insurance fact for any Port O'Connor buyer to understand before shopping for a property: Calhoun County is one of 14 first-tier coastal counties designated a catastrophe area under Texas Insurance Code Section 2210.003, and in that designated area, standard homeowners (HO-3) policies generally exclude wind and hail coverage entirely. Coverage for wind and hail has to come either from the Texas Windstorm Insurance Association (TWIA) -- the state's insurer of last resort for these counties -- or from a private or surplus-lines carrier willing to write coastal wind. Industry sourcing put TWIA's average residential premium at roughly $1,480/year as of mid-2025, layered on top of a separate standard homeowners premium for everything else (fire, liability, non-wind perils), which one insurance-guide source put in the roughly $876-$1,222/year range specifically for Port O'Connor. Combined, a realistic all-in insurance floor -- homeowners plus windstorm -- lands somewhere in the neighborhood of $2,400-$2,700/year before flood coverage is even added, and that is before any surcharge for a higher-value or more exposed waterfront parcel.

The closing-risk piece is just as important as the premium math: any structure built, altered, remodeled, enlarged, or repaired since January 1, 1988 needs a Windstorm Certificate of Compliance (Form WPI-8, WPI-8-E, or WPI-8-C) on file with the Texas Department of Insurance before TWIA will write a windstorm policy on it. Without that certificate, a buyer typically cannot obtain windstorm coverage -- and without windstorm coverage, a mortgage lender in this designated catastrophe-area county typically will not fund the loan. Selling a home here without a WPI-8 on file is legal, but it can functionally block a financed sale. Any offer on a Port O'Connor property should confirm a current WPI-8 (or equivalent) is on file before assuming standard financing timelines will hold.

Flood Insurance: A Separate Purchase, Layered on Top

Windstorm coverage does not include flood coverage -- that is a third, separate policy in most cases. FEMA flood-zone designations that begin with A or V (including AE and VE, both common along this stretch of coast) are high-risk Special Flood Hazard Areas, and any property in one of those zones with a federally backed mortgage is required to carry a National Flood Insurance Program (NFIP) or qualifying private flood policy. Industry sourcing put Calhoun County's average NFIP premium at roughly $1,029/year, with high-risk-zone premiums generally cited in the broader $900-$1,200/year range statewide. VE zones specifically carry an elevated risk designation for coastal wave action and storm surge, which is directly relevant here given Port O'Connor's exposure along the Matagorda Ship Channel, Matagorda Bay, and the open Gulf beyond the jetties. Get an address-specific FEMA flood-zone determination and an actual NFIP or private-market quote before budgeting a number for any specific parcel -- flood-zone boundaries can differ meaningfully between two lots a few blocks apart in a town this close to open water on every side.

Texas Property Tax Structure and No State Income Tax

Texas levies no state personal income tax, which is a real, quantifiable benefit for a household relocating from a state that taxes wages -- but it is also the direct structural reason Texas leans harder on property tax than many other states to fund schools and local government, which is a meaningful part of why Calhoun County's effective rate (roughly 1.4%-1.5%) sits above the national median even though it's below the Texas state median. Buyers moving from a no-property-tax-relief, high-income-tax state may find this an overall improvement; buyers moving from a lower-property-tax state should budget the recurring property-tax line item accordingly rather than assuming "no income tax" makes total housing costs low across the board.

Putting the Real Number Together

For a representative $400,000-$500,000 Port O'Connor purchase, a realistic annual recurring-cost floor looks roughly like: $5,600-$7,000 in county property tax at the roughly 1.4% county-median effective rate (confirm the specific parcel's actual assessed value and taxing entities); a combined homeowners-plus-TWIA-windstorm insurance bill likely in the $2,400-$2,700+/year range, more for higher-value or more wind-exposed waterfront property; a separate NFIP or private flood policy likely in the $900-$1,200+/year range if the parcel sits in a high-risk flood zone, which is common in a town surrounded by water on nearly every side; and confirmation that any structure on the property has a current WPI-8 windstorm-compliance certificate on file, since its absence can block financing regardless of how attractive the purchase price looks. None of these figures substitutes for an actual Calhoun County Appraisal District tax card, actual TWIA and NFIP quotes, and an actual current comparative market analysis for a specific property -- but together they give a far more honest starting budget than a bare purchase-price headline alone.