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County · code 48215

Hidalgo CountyTexas

Hidalgo County is a Texas county with its seat in Edinburg, created in 1852 from Cameron County. It was named after Miguel Hidalgo y Costilla.

  • Founded1852
  • County seatEdinburg
  • Named forMiguel Hidalgo Y Costilla
  • Land area1,571 sq mi + 12 sq mi water
  • Population870,781 2020 Census
  • Parcels mapped332,246 checked 15 October 2026
Open the free map Click any parcel in Hidalgo County: acreage, parcel id, address and who publishes the map. No sign-in.

Updated

StarrWillacyKenedyCameron Edinburg Census outline · seat marked

Where it is

Hidalgo 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 · Hidalgo highlighted

History

Formed in 1852 from Cameron County

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

Hidalgo County was created from Cameron County on January 24, 1852, but remained unorganized until August 2, 1852. It lost territory to Nueces County in 1870, and again when Brooks and Willacy counties were created from it in 1911 and when additional land went to Willacy in 1921.

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

  1. 1852
    Hidalgo County created Hidalgo created from Cameron; Hidalgo not fully organized.
    from Cameron
    · Texas Laws 1851, 4th leg., reg. sess., ch. 42/p. 32
  2. 1852
    Changed Hidalgo fully organized. · Texas Laws 1851, 4th leg., reg. sess., ch. 42, sec. 2/p. 33
  3. 1853
    Boundary clarified Hidalgo boundaries clarified to correct mistake of 24 January 1852 (no change).
    no change
    · Texas Laws 1853, 4th leg., 2d sess., ch. 9/p. 18
  4. 1870
    Lost territory Hidalgo lost to Nueces.
    to Nueces
    · Texas Laws 1870, 12th leg., called sess., ch. 27/p. 40
  5. 1911
    Lost territory Hidalgo lost to creation of Brooks and Willacy.
    to Brooksto Willacy
    · Texas Laws 1911, 32d leg., reg. sess., chs. 39, 48/pp. 55-57, 83-87
  6. 1921
    Lost territory Hidalgo lost to Willacy.
    to Willacy
    · Texas Laws 1921, 37th leg., reg. sess., ch. 104/pp. 200-207

Land and parcels

What the maps cover in Hidalgo

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

Hidalgo by the Census

Population
870,781 2020 Census count
Housing units
294,902 2020 Census count
Land area
1,571 square miles
Water area
12 square miles
People per sq mi
554 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

Who to ask before you build, dig or sell

Official county pages only. We link to them; we do not copy them, because they change.

Inside a city or town, permits usually come from that city rather than the county.

Records

Permits

Zoning and code

County government

See your own lot on these maps

Open Hidalgo 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 Hidalgo County

When was Hidalgo County founded?
Hidalgo County was founded in 1852, formed from Cameron County, and named after Miguel Hidalgo Y Costilla.
What is the county seat of Hidalgo County?
The county seat of Hidalgo County is Edinburg.
Is there an online parcel map for Hidalgo County?
Yes. A public source publishes a parcel map of 332,246 parcels, rated good enough here. You can click any parcel on it in Parcel Chart's free map, no sign-in needed.
Has Hidalgo County's boundary or name changed?
Hidalgo County was created in 1852 from Cameron County. Since then the Atlas of Historical County Boundaries records 4 later changes, chiefly involving Willacy County, Brooks County and Nueces County.
Who issues building permits in Hidalgo County?
The county's page on building permits: Permits. Inside a city or town, ask that city first.
Who issues septic and well permits in Hidalgo County?
The county's page on septic systems and wells: Employee Benefits Division - Health Benefits.
Is my lot in a flood zone?
We do not have flood maps for Hidalgo 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