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What county is Harlingen, TX in?

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

Harlingen, Texas is in Cameron County.

Harlingen at a glance

Population71,6692nd largest place in Cameron County

Land area40.3 sq mi1,780 people per sq mi

Share of Cameron County17%of the county's residents live here

County seatBrownsville20 mi from Harlingen

Time zoneCentralAmerica/Chicago

Nearest county line9.1 mito Willacy County

How close is Harlingen to a county line?

The center of Harlingen (its Census internal point) is about 9.1 mi from the Willacy 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 Harlingen?

4 ZIP codes use the name Harlingen 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)
78550	Harlingen	Cameron County
78551	Harlingen	Cameron County
78552	Harlingen	Cameron County
78553	Harlingen	Cameron County

About Cameron County

County seat: Brownsville. FIPS code 48061. Population 423,192. All Cameron County facts.

Towns near Harlingen

Palm Valley: 3.6 mi away, Cameron County
Primera: 4.0 mi away, Cameron County
Combes: 4.2 mi away, Cameron County
San Benito: 5.4 mi away, Cameron County
Rio Hondo: 7.8 mi away, Cameron County
La Feria: 8.3 mi away, Cameron County

Harlingen has about 71,669 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 Harlingen, TX in?

Harlingen, Texas is in Cameron County. The county seat of Cameron County is Brownsville.

What ZIP codes are in Harlingen, TX?

78550, 78551, 78552, 78553.

Is Harlingen the county seat of Cameron County?

No. The county seat is Brownsville, about 20 mi away.

What time zone is Harlingen, TX in?

Central time (America/Chicago).

How do I know which county my Harlingen 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.