Residential delivery area · Texas
ZIP Code 78599: Weslaco, TX
ZIP code 78599 uses the postal name Weslaco, Texas and lies entirely in Hidalgo County (Census 2020 ZIP-county file). About 35,000 people live there (Census Bureau, ACS 2020-2024), the less populous of Weslaco's 2 residential ZIP codes. Median household income is $58,349 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Weslaco (23%), Olivarez (14%), Midway North (5%) and Mila Doce (5%); 54% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- Town
- Weslaco · 2 residential ZIPs
- County
- Hidalgo County
- Census places
- Weslaco (23%); Olivarez (14%) census-designated place; Midway North (5%) census-designated place; Mila Doce (5%) census-designated place
- Metro area
- McAllen-Edinburg-Mission, TX
- House district
- TX-34 119th Congress
- State
- Texas
- Time zone
- Central
- Land area
- 26.5 sq mi · 1,337 people per sq mi
Where is ZIP code 78599?
78599 centers on 26.217°, -97.988° and covers 26.5 square miles of land plus 0.1 of water. It borders 6 ZIP codes: 78537, 78558, 78570, 78543, 78596, 78538.
The map draws ZIP code areas only. For the streets inside 78599, open its center on OpenStreetMap.
Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from GeoNames postal codes (CC BY 4.0).
How does 78599 compare with the rest of Weslaco?
| Measure | 78599 | In Weslaco | In Hidalgo County | In TX |
|---|---|---|---|---|
| People (ACS 2020-2024) | 35,454 | 2nd of 2 | 13th of 30 | 296th of 1,990 |
| Median household income | $58k | 2nd of 2 | 5th of 19 | 885th of 1,172 |
| Median home value | $125k | 1st of 2 | 11th of 20 | 1,029th of 1,172 |
Its median household income is higher than in 26% of U.S. residential ZIP codes, and it is denser than 81% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).
How many people live in 78599?
The 2020 Census counted 32,500 people in 78599; the ACS, which samples households over 2020-2024, estimates 35,454.
- People, ACS 2020-2024
- 35,454
- 2020 Census count
- 32,500
- Households
- 9,605
- Median age
- 27.9
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).
Who lives in 78599?
Of the 35,454 people the ACS estimates in 78599, 34.6% are under 18 and 8.0% are 65 or older. The largest group by race and Hispanic origin is Hispanic or Latino (96.1%).
- Under 1834.6%
- 18 to 6457.4%
- 65 and older8.0%
- Hispanic or Latino96.1%
- White, not Hispanic2.1%
- Black, not Hispanic1.0%
- Other or two or more0.6%
- Asian, not Hispanic0.2%
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.
What do households in 78599 earn?
Median household income is $58,349 (ACS 2020-2024), the 5th highest of the 19 ranked ZIP codes in Hidalgo County.
- Median household income
- $58,349
- Income per person
- $20,831
- Below the poverty line
- 24.4%
- Unemployed (of the labor force)
- 8.1%
- Adults 25+ with a bachelor's degree
- 15.1%
Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).
What are homes worth in 78599?
FHFA's house price index for 78599, built from repeat sales and appraisals of the same homes, rose 102% from 2015 to 2025 and rose 65% from 2020 to 2025, and moved +1.5% in 2025.
- Median home value (owners' estimate)
- $125,400
- Median gross rent
- $1,007
- Homes owned by their occupants
- 68.8%
- Housing units
- 10,225
Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.
What businesses are in 78599?
176 business establishments had a location in this ZIP code in 2023, 78 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade32
- Health care and social assistance22
- Accommodation and food services20
- Construction18
- Real estate and rental and leasing12
- Transportation and warehousing10
Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).
Which ZIP codes are next to 78599?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 78537 | Donna | 51,426 | $41k | 5.3 mi |
| 78558 | La Blanca | 722 | $58k | 5.7 mi |
| 78570 | Mercedes | 34,348 | $42k | 5.7 mi |
| 78543 | Elsa | 8,400 | $45k | 5.9 mi |
| 78596 | Weslaco | 39,518 | $58k | 8.3 mi |
| 78538 | Edcouch | 11,982 | $40k | 10.4 mi |
| 78562 | La Villa | 3,211 | $32k | 7.6 mi (near) |
| 78579 | Progreso | 2,039 | $19k | 9.2 mi (near) |
| 78516 | Alamo | 34,370 | $53k | 9.7 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.