County · code 48007
Aransas CountyTexas
Aransas County is a Texas county formed in 1871 from Refugio County, with its seat in Rockport.
- Founded1871
- County seatRockport
- Named forAransas Bay, Texas
- Land area252 sq mi + 276 sq mi water
- Population23,830 2020 Census
- Parcels mapped26,328 checked 15 October 2026
Where it is
Aransas on the map of Texas
Texas has 254 counties and county equivalents, each with its own records office. Shapes with a page are links.
History
Formed in 1871 from Refugio County
An old deed may name a county that no longer exists, or a boundary that has since moved.
Aransas County was created on September 30, 1871, from Refugio County and named after Aransas Bay, though it was not fully organized until March 26, 1872. The county exchanged territory with San Patricio County in 1887, but that exchange was reversed in 1891.
- 1871Aransas County created Aransas created from Refugio; Aransas not fully organized. Act passed 18 September 1871; took effect 30 September 1871. · Texas Laws 1871, 12th leg., 2d sess., ch. 1/p. 1
- 1872Changed Aransas fully organized. · "Aransas County," New Handbook of Texas, 1:218
- 1887Exchanged territory Aransas exchanged with San Patricio (later repealed). · Texas Laws 1887, 20th leg., reg. sess., ch. 40/p. 28
- 1891Exchanged territory Aransas exchanged with San Patricio (later repealed). · Texas Laws 1891, 22d leg., reg. sess., ch. 109/p. 172
- 1947Changed Boundaries of Aransas extended to the continental shelf in the Gulf of Mexico. · Texas Laws 1947, 50th leg., reg. sess., ch. 287/p. 490
Land and parcels
What the maps cover in Aransas
Who publishes each layer, how good it is, and when we last checked.
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Parcels Good enough
Lot lines and tax-map numbers for 26,328 parcels from Aransas County. Drawn for tax purposes: usually within a few feet of a survey, but not a survey.
checked 15 October 2026 -
Address points Official
One point per address, 14,670 in all from Texas Geographic Information Office (TxGIO, formerly TNRIS), a division of the Texas Water Development Board; StratMap program.
checked 14 October 2026 -
Buildings Reference
Roof outlines traced from aerial imagery from FEMA Response Geospatial Office with Oak Ridge National Laboratory (ORNL). Good for seeing what is on a lot; not accurate enough to set a fence from.
checked 18 October 2026
- Official
- from the office that keeps the record
- Good enough
- a reliable statewide or national copy
- Fallback
- a guide only; check the official record
- Missing
- nothing public found yet
People and land
Aransas by the Census
Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.
Rules and offices
Aransas County's official site
We have found the county's site but not its offices yet; start there.
County government
- County government
The official website of Aransas County.
See your own lot on these maps
Open Aransas County on Parcel Chart's free map and click your parcel. Save it with a free account; the full record of your place (site map, projects, documents) is Pro, in early access.
Questions
Common questions about Aransas County
- When was Aransas County founded?
- Aransas County was founded in 1871, formed from Refugio County, and named after Aransas Bay, Texas.
- What is the county seat of Aransas County?
- The county seat of Aransas County is Rockport.
- Is there an online parcel map for Aransas County?
- Yes. Aransas County publishes a parcel map of 26,328 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
- Has Aransas County's boundary or name changed?
- Aransas County was created in 1871 from Refugio County. Since then the Atlas of Historical County Boundaries records 4 later changes, most of them small boundary adjustments, chiefly involving San Patricio County.
- Is my lot in a flood zone?
- We do not have flood maps for Aransas County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.
Nearby