| ZIP Codes: | 31 ZIP Codes (22 Standard, 9 PO Box, 0 Unique) [See All] |
| Area Code: | 956 |
| Timezone: | Central (GMT -06:00) |
| Local Time: | 2:13:56 PM |
| Population: | 891,915 [See All] |
| FIPS: | 48215 |
| CBSA: | McAllen-Edinburg-Mission, TX |
| Land Area: | 1,481 sq mi |
| Water Area: | 12 sq mi |
| Coordinates: | 26.2657, -98.1888 |
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891,915 residents live across 31 ZIPs covering 1,481 sq mi, served by 21 distinct USPS-recognized cities.
Population moved from 806,421 to 856,461 from 2014 to 2024 — a +6.2% change. 17 ZIPs gained residents, 10 lost.
The county's wealthiest ZIP 78504 (Mcallen, $81,905 median) and poorest ZIP 78579 (Progreso, $19,172) are 22.6 miles apart — a 4.3× income gap across local geography.
Median home values vary 2.7× across this county — from $81,900 in 78537 (Donna) to $218,900 in 78504 (Mcallen).
Density varies 129× across the county — from 131 people/sq mi in 78538 (Edcouch) to 16,823 in 78579 (Progreso).
Educational attainment ranges from 5.2% bachelor's+ in 78562 (La Villa) to 39.5% in 78504 (Mcallen) — the breadth of educational profiles across the area.
Within Texas, this is the #8 most populous of 254 counties and ranks #229 for median household income with the #63 fastest decade growth .
On the national stage, Hidalgo County is the #64 most populous US county .
Weighted by population, the typical household earns about $54,729 across the county — reflecting what a typical resident sees, not a simple ZIP average.
20.6% of adults age 25+ hold a bachelor's degree or higher (106,466 of 515,974 reporting). The most-educated ZIPs cluster around Mcallen.
22 Standard delivery, 9 PO Box only, 0 single-entity Unique ZIPs serve this county.
Median household income spans 4.3× between the wealthiest and poorest ZIPs — a sign of significant intra-county inequality.
| ZIP | City | Type | Population | Median Income | Area (sq mi) | 10-yr Growth |
|---|---|---|---|---|---|---|
| 78542 | Edinburg | Standard | 89,401 | $55,243 | 260.7 | 33.1% |
| 78577 | Pharr | Standard | 80,540 | $52,770 | 28.8 | 9.5% |
| 78572 | Mission | Standard | 78,024 | $54,298 | 57.2 | 2.6% |
| 78504 | Mcallen | Standard | 63,094 | $81,905 | 23.2 | 24.3% |
| 78574 | Mission | Standard | 62,456 | $52,393 | 48.1 | 2.4% |
| 78501 | Mcallen | Standard | 58,935 | $48,071 | 15.4 | -6.2% |
| 78541 | Edinburg | Standard | 51,710 | $52,863 | 347.1 | 19.4% |
| 78537 | Donna | Standard | 51,426 | $40,668 | 59.5 | 33.7% |
| 78573 | Mission | Standard | 44,809 | $55,000 | 32.2 | 20.9% |
| 78589 | San Juan | Standard | 40,231 | $54,285 | 28.6 | 3.3% |
| 78596 | Weslaco | Standard | 39,518 | $58,411 | 44.7 | -40.0% |
| 78539 | Edinburg | Standard | 37,168 | $66,967 | 13.0 | 10.2% |
| 78599 | Weslaco | Standard | 35,454 | $58,349 | 28.0 | — |
| 78516 | Alamo | Standard | 34,370 | $53,229 | 30.2 | -10.2% |
| 78570 | Mercedes | Standard | 34,348 | $41,965 | 87.4 | 2.7% |
| 78503 | Mcallen | Standard | 22,621 | $53,322 | 20.8 | 1.3% |
| 78576 | Penitas | Standard | 15,484 | $49,137 | 52.1 | 55.3% |
| 78557 | Hidalgo | Standard | 14,498 | $59,441 | 12.4 | 11.0% |
| 78538 | Edcouch | Standard | 11,982 | $40,399 | 91.8 | 3.7% |
| 78543 | Elsa | PO Box | 8,400 | $44,527 | 0.9 | -2.0% |
| 78595 | Sullivan City | Standard | 6,118 | $58,846 | 37.8 | -0.8% |
| 78560 | La Joya | Standard | 4,635 | $55,721 | 15.9 | 1.7% |
| 78562 | La Villa | PO Box | 3,211 | $31,522 | 0.8 | -11.9% |
| 78579 | Progreso | PO Box | 2,039 | $19,172 | 0.1 | -50.8% |
| 78558 | La Blanca | PO Box | 722 | $57,969 | 0.0 | -41.3% |
| 78549 | Hargill | PO Box | 609 | $19,222 | 2.6 | 45.7% |
| 78563 | Linn | Standard | 92 | — | 141.1 | -46.5% |
| 78565 | Los Ebanos | PO Box | 20 | — | 0.0 | -88.8% |
| 78540 | Edinburg | PO Box | 0 | — | 0.0 | — |
| 78505 | Mcallen | PO Box | — | — | 0.0 | — |
| 78502 | Mcallen | PO Box | — | — | 0.0 | — |