29 ZIP Codes
| Zip Code | City | Population ↓ |
|---|---|---|
| 78542 | Edinburg | 89,401 |
| 78577 | Pharr | 80,540 |
| 78572 | Mission | 78,024 |
| 78504 | Mcallen | 63,094 |
| 78574 | Mission | 62,456 |
| 78501 | Mcallen | 58,935 |
| 78541 | Edinburg | 51,710 |
| 78537 | Donna | 51,426 |
| 78573 | Mission | 44,809 |
| 78589 | San Juan | 40,231 |
| 78596 | Weslaco | 39,518 |
| 78539 | Edinburg | 37,168 |
| 78599 | Weslaco | 35,454 |
| 78516 | Alamo | 34,370 |
| 78570 | Mercedes | 34,348 |
| 78503 | Mcallen | 22,621 |
| 78576 | Penitas | 15,484 |
| 78557 | Hidalgo | 14,498 |
| 78538 | Edcouch | 11,982 |
| 78543 | Elsa | 8,400 |
| 78595 | Sullivan City | 6,118 |
| 78560 | La Joya | 4,635 |
| 78562 | La Villa | 3,211 |
| 78579 | Progreso | 2,039 |
| 78558 | La Blanca | 722 |
| 78549 | Hargill | 609 |
| 78563 | Linn | 92 |
| 78565 | Los Ebanos | 20 |
| 78540 | Edinburg | 0 |
The data shown reflect ZCTAs from the US Census. As of 2025, there are 29 ZCTAs in Hidalgo County, Texas (US Census).