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What county is Weslaco, TX in?

Updated November 1, 2026 · Data: U.S. Census Bureau

Weslaco, Texas is in Hidalgo County.

Weslaco at a glance

Population41,4375th largest place in Hidalgo County

Land area16.9 sq mi2,449 people per sq mi

Share of Hidalgo County5%of the county's residents live here

County seatEdinburg15 mi from Weslaco

Time zoneCentralAmerica/Chicago

Nearest county line7.9 mito Cameron County

How close is Weslaco to a county line?

The center of Weslaco (its Census internal point) is about 7.9 mi from the Cameron County line. Homes near the edge of town can be much closer; if you live near a line, check your address and the lookup will tell you how far you are from it.

What ZIP codes are in Weslaco?

2 ZIP codes use the name Weslaco or are centered in it. Shares are of each ZIP's land; a ZIP named after a town can reach beyond its city limits.

ZIP	Post office name	County (land share)
78596	Weslaco	Hidalgo County
78599	Weslaco	Hidalgo County

About Hidalgo County

County seat: Edinburg. FIPS code 48215. Population 880,921. All Hidalgo County facts.

Towns near Weslaco

Midway South: 2.1 mi away, Hidalgo County
Llano Grande: 2.4 mi away, Hidalgo County
Midway North: 2.7 mi away, Hidalgo County
Donna: 3.2 mi away, Hidalgo County
Scissors: 4.2 mi away, Hidalgo County
Mila Doce: 4.6 mi away, Hidalgo County

Weslaco has about 41,437 people. It is an incorporated city or town.

Sources: ACS 2019-2023 5-year (residents by county, table B01003); Census TIGER/Line 2024 and Gazetteer 2024 (land, location); Census 2020 ZCTA file and GeoNames (ZIP codes). Data as of November 1, 2026. Not affiliated with any government agency.

FAQ

Frequently asked questions

What county is Weslaco, TX in?

Weslaco, Texas is in Hidalgo County. The county seat of Hidalgo County is Edinburg.

What ZIP codes are in Weslaco, TX?

78596, 78599.

Is Weslaco the county seat of Hidalgo County?

No. The county seat is Edinburg, about 15 mi away.

What time zone is Weslaco, TX in?

Central time (America/Chicago).

How do I know which county my Weslaco address is in?

Use the address lookup at your home, or check your appraisal district record.

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CountyFinder is an independent website. It is not affiliated with the U.S. Census Bureau, USPS or any county, state or federal agency. County boundaries are from Census TIGER/Line, published for statistical purposes only: they are not a determination of jurisdictional authority or legal land descriptions. For legal or tax purposes, confirm your county with the county.