Every taxing unit on a South Padre Island bill
Your bill adds up one line per taxing unit. These are the units on the 2025 appraisal roll for homes inside South Padre Island city limits, with Point Isabel ISD as the school district. Rates are dollars per $100 of taxable value.
| Taxing unit | M&O 2025 | I&S 2025 | 2025 rateadopted | 2026 rateadopted, where confirmed | Sources |
|---|---|---|---|---|---|
| Cameron CountyCounty | 0.387046 | 0.037347 | 0.424393 | 0.424393 | Cameron CAD 2025 rates, Cameron CAD 2025 roll, Cameron CAD 2026 adopted rates |
| South Texas ISD (magnet district)School district (countywide) | 0.049200 | 0.000000 | 0.049200 | 0.049200 | Cameron CAD 2025 rates, Cameron CAD 2026 adopted rates |
| Town of South Padre IslandCity | 0.187175 | 0.074984 | 0.262159 | 0.262159 | Cameron CAD 2025 rates, Comptroller 2025 city file, Cameron CAD 2025 roll, Cameron CAD 2026 adopted rates |
| Texas Southmost College DistrictCollege district | 0.091344 | 0.020465 | 0.111809 | 0.099734 | Cameron CAD 2025 rates, Comptroller 2025 special district file, Cameron CAD 2025 roll, Cameron CAD 2026 adopted rates |
| Laguna Madre Water DistrictWater district | 0.000000 | 0.122714 | 0.122714 | 0.122090 | Cameron CAD 2025 rates, Comptroller 2025 special district file, Cameron CAD 2025 roll, Cameron CAD 2026 adopted rates |
| Point Isabel ISDSchool district | 0.679800 | 0.050500 | 0.730300 | 0.708300 | Cameron CAD 2025 rates, Comptroller 2025 school file, Cameron CAD 2025 roll, Cameron CAD 2026 adopted rates |
| Combined (Point Isabel ISD) | 1.700575 | 1.665876 |
The Comptroller's 2025 county file adds a Cameron County road and bridge rate of 0.049765; Cameron CAD's adopted-rate sheets and every sampled 2025 roll record show 0.424393 only, which is used here.
What makes up the South Padre Island rate
Point Isabel ISD is the biggest line on a South Padre Island bill: 0.7083 of the 1.6659 per $100, or 43% of the 2026 total. The countywide units (Cameron County and South Texas ISD (magnet district)) add 0.4736.
The Town of South Padre Island's own 2026 rate is 0.262159, the lowest of the 6 Cameron County city rates on this site (from 0.262159 to 0.7800).
Units that tax this part of the county: Texas Southmost College District (0.099734): Brownsville, Los Fresnos and Point Isabel ISD areas (all sampled Brownsville, Los Fresnos, Port Isabel and SPI homes); Laguna Madre Water District (0.12209): Port Isabel, South Padre Island, Laguna Vista (all sampled).
From 2025 to 2026 the combined rate went from 1.7006 to 1.6659 (−0.0347). Changes by unit: Point Isabel ISD 0.7303 to 0.7083; Texas Southmost College District 0.111809 to 0.099734; Laguna Madre Water District 0.122714 to 0.12209.
At 2025 rates (the latest year with every city's rate), South Padre Island's combined 1.7006 is the lowest of the 20 Valley cities on this site and the lowest of the 6 in Cameron County.
Which school district?
The 2020 Census places all of the homes inside South Padre Island city limits in Point Isabel ISD, so the table above uses it. Your district depends on your exact address. Look it up on the Cameron Appraisal District property search. The share comes from 2020 Census housing counts within current boundaries, and new streets at the edges can differ.
The 2020 Census counted 4,842 housing units inside South Padre Island city limits.
Units that tax only some homes
No other taxing units showed up on the 24 sampled homes inside South Padre Island city limits on the 2025 roll. A public improvement district (PID) in a newer subdivision bills an assessment, not a tax rate; the title company can tell you if a lot has one.
A South Padre Island mailing address can sit outside city limits, where there is no city tax and an emergency services district may tax instead. Your appraisal district record lists every unit on your home.
Estimate your South Padre Island property tax
Annual tax only. Pick your school district, enter the appraised value from your notice, and choose your exemptions.
The percentage is each district's share of the city's homes (2020 Census). Your exact district depends on your address.
Estimated property tax
$4,004 a year
Estimated 2026 property tax for South Padre Island, $300,000 taxable value before exemptions, combined rate 1.665876 per $100.
| Taxing unit | Rate per $100 | Taxable value | Tax |
|---|---|---|---|
| Cameron County | 0.424393 | $300,000 | $1,273 |
| South Texas ISD (magnet district) | 0.049200 | $295,000 | $145 |
| Town of South Padre Island | 0.262159 | $300,000 | $786 |
| Texas Southmost College District | 0.099734 | $300,000 | $299 |
| Laguna Madre Water District | 0.122090 | $300,000 | $366 |
| Point Isabel ISD | 0.708300 | $160,000 | $1,133 |
| Total (estimate) | 1.665876 | $4,004 |
Estimate. Local-option exemptions and the 65+ school tax ceiling can lower it; your tax office has your exact bill.
What a South Padre Island home pays at $200,000, $300,000 and $400,000
| Appraised value | No exemptions | Homestead | Homestead, 65 or older |
|---|---|---|---|
| $200,000 | $3,332 | $2,338 | $1,913 |
| $300,000 | $4,998 | $4,004 | $3,579 |
| $400,000 | $6,664 | $5,669 | $5,244 |
What the exemptions are worth in South Padre Island
| Exemption | Saves a year | Tax left |
|---|---|---|
| Homestead ($140,000 off Point Isabel ISD, $5,000 off South Texas ISD) | $994 | $4,004 |
| Add 65 or older, or disabled ($60,000 more off Point Isabel ISD) | $425 | $3,579 |
| Add a veteran rating of 70% or more ($12,000 off every unit) | $200 | $3,804 |
| Veteran with a 100% rating or individual unemployability | $4,004 | $0 |
Rules and forms: how each exemption works, the homestead guide and the disabled veteran guide.
Protest deadline
Who sends the bill, and when it is due
The Cameron County Tax Assessor-Collector, (956) 544-0800, collects for every taxing unit on these pages. Your statement lists each tax. Online: cameroncountytx.gov.
2026 bills go out in October and November 2026 and are on time if paid by Monday, Feb. 1, 2027, because Jan. 31 falls on a Sunday (Tax Code 31.02, 1.06). Penalties and installment plans.
Nearby cities
Questions
How much are property taxes on a $300,000 house in South Padre Island?
About $4,998 a year with no exemptions, $4,004 with a homestead exemption and $3,579 at 65 or older (2026 rates, Point Isabel ISD).
What is the property tax rate in South Padre Island, TX?
1.6659 per $100 (1.67%) for most homes in 2026: 6 taxing units (2025: 1.7006).
When and where do I pay South Padre Island property taxes?
The Cameron County Tax Assessor-Collector, (956) 544-0800, collects for every taxing unit on these pages. Your statement lists each tax. 2026 bills are on time if paid by Monday, Feb. 1, 2027, because Jan. 31 is a Sunday.
Next steps
- Living in South Padre Island: the South Padre Island community guide.
- Countywide view: Cameron County property tax rates, and all 20 Valley cities compared.
- Mortgage and affordability math: calculators.
From Amy
Protesting your home's value? I can pull recent sales of comparable homes near yours from the MLS for your hearing. I help with single-family homes only, not farms, ranches, duplexes, multifamily or commercial property, and I do not file protests for you. Book a call. I work in English and Spanish.
Sources and method
Units: 24 sampled Cameron Appraisal District 2025 roll records for homes inside South Padre Island city limits (sampled Oct 14, 2026). Rates: checked Oct 16, 2026 against the sources below. Full method and data file.