Home > TX > Hidalgo County > San Juan > Zip 78589

Zip Code 78589 — San Juan, TX

ZIP Code 78589 is associated with San Juan, TX, in Hidalgo County. The listed population estimate is 40,231; estimated density is 609.4 people per square mile. Among records with population estimates, it ranks #10 of 28 in Hidalgo County and #230 of 1,924 in TX.
Page generated: 2026-10-08. This is not the source data release date.

📍 View location on OpenStreetMap (26.153490, -98.159790)

Data MetricLocal Statistic
Postal / Zip Code78589
Primary CitySan Juan
State / ProvinceTX
CountyHidalgo
Total Population40,231
Population Density609.4 people/sq mi
TimezoneAmerica/Chicago

How 78589 Compares

MetricZIP 78589Hidalgo County recordsTX records
Population estimate40,231891,915 (sum)30,188,035 (sum)
Population Density609.4 /sq mi----
County population rank#10 of 28----
State population rank#230 of 1,924----

Regional sums combine the population estimates in the listed ZIP records; they are not official county or state population totals.

Explore More ZIP Codes

Nearby ZIP Codes in TX

ZIP CodeCityDistancePopulation estimate
ZIP 78577Pharr2.1 mi80,540
ZIP 78516Alamo2.6 mi34,370
ZIP 78503Mcallen5.7 mi22,621
ZIP 78557Hidalgo6.5 mi14,498
ZIP 78537Donna6.5 mi51,426

Data Sources & Methodology: Geographic coordinates and ZIP Code assignments are derived from underlying geographic and postal datasets. Note that ZIP Codes are USPS postal delivery areas, while Census ZCTAs are statistical approximation areas. Read full methodology →