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County · code 48505

Zapata CountyTexas

Zapata County is a county in Texas with its seat in Zapata. It was created on January 22, 1858 from Starr and Webb Counties.

  • Founded1858
  • County seatZapata
  • Land area998 sq mi + 60 sq mi water
  • Population13,889 2020 Census
  • Parcels mapped12,577 checked 16 October 2026
Open the free map Click any parcel in Zapata County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

Jim HoggStarrWebb Zapata Census outline · seat marked

Where it is

Zapata on the map of Texas

Texas has 254 counties and county equivalents, each with its own records office. Shapes with a page are links.

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Counties of Texas · Zapata highlighted

History

Formed in 1858 from Starr County and Webb County

An old deed may name a county that no longer exists, or a boundary that has since moved.

Zapata County was fully organized on April 26, 1858, less than three months after its creation. Over the following decades, the county experienced significant boundary changes: it lost territory to Duval, Encinal, and Webb in 1870, gained a small area from Webb in 1871, lost additional territory with the creation of Brooks County in 1911, and gained another small area from Webb in 1921 when the true boundary line between the counties was established.

Boundary changes from the Newberry Library, Atlas of Historical County Boundaries.

  1. 1858
    Zapata County created Zapata created from Starr and Webb; Zapata not fully organized.
    from Starrfrom Webb
    · Texas Laws 1857, 7th leg., ch. 55, sec. 7/p. 60
  2. 1858
    Changed Zapata fully organized. · "Zapata County," New Handbook of Texas, 6:1144
  3. 1870
    Lost territory Zapata lost to Duval, Encinal (extinct), and Webb.
    to Duvalto Encinalto Webb
    · Texas Laws 1870, 12th leg., called sess., ch. 27/p. 40
  4. 1871
    Gained territory Zapata gained small area from Webb.
    from Webb
    · Texas Laws 1871, 12th leg., 1st sess., ch. 58/p. 62
  5. 1911
    Lost territory Zapata lost to creation of Brooks.
    to Brooks
    · Texas Laws 1911, 32d leg., reg. sess., ch. 39/pp. 55-57
  6. 1921
    Gained territory Zapata gained small area from Webb when agreement was reached on the true boundary line between the counties.
    from Webb
    · "Zapata County v. Webb County," Jim Hogg District Court, December Term 1921

Land and parcels

What the maps cover in Zapata

Who publishes each layer, how good it is, and when we last checked.

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

Zapata by the Census

Population
13,889 2020 Census count
Housing units
6,159 2020 Census count
Land area
998 square miles
Water area
60 square miles
People per sq mi
14 population ÷ land area

Source: US Census Bureau, 2020 Census; US Census Bureau, 2020 Gazetteer Files. Not endorsed or certified by the Census Bureau.

Rules and offices

Zapata County's official site

We have found the county's site but not its offices yet; start there.

County government

See your own lot on these maps

Open Zapata 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.

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Questions

Common questions about Zapata County

When was Zapata County founded?
Zapata County was founded in 1858, formed from Starr County and Webb County.
What is the county seat of Zapata County?
The county seat of Zapata County is Zapata.
Is there an online parcel map for Zapata County?
Yes. Zapata County publishes a parcel map of 12,577 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Zapata County's boundary or name changed?
Zapata County was created in 1858 from Starr County and Webb County. Since then the Atlas of Historical County Boundaries records 5 later changes, chiefly involving Webb County, Brooks County and Duval County.
Is my lot in a flood zone?
We do not have flood maps for Zapata County yet. Look up the address on FEMA's Flood Map Service Center, which shows the effective flood map for any lot.

Nearby

Counties next door