Residential delivery area · Texas
ZIP Code 78516: Alamo, TX
ZIP code 78516 uses the postal name Alamo, Texas and lies entirely in Hidalgo County (Census 2020 ZIP-county file). About 34,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $53,229 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Alamo (20%), South Alamo (5%) and North Alamo (3%); 72% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Alamo · its only residential ZIP
- County
- Hidalgo County
- Census places
- Alamo (20%); South Alamo (5%) census-designated place; North Alamo (3%) census-designated place
- Metro area
- McAllen-Edinburg-Mission, TX
- House districts
- TX-15 (68%), TX-34 (32%) 119th Congress, by share of land
- State
- Texas
- Time zone
- Central
- Land area
- 37.8 sq mi · 909 people per sq mi
Where is ZIP code 78516?
78516 centers on 26.145°, -98.121° and covers 37.8 square miles of land plus 0.3 of water. It borders 3 ZIP codes: 78589, 78537, 78542.
The map draws ZIP code areas only. For the streets inside 78516, 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 simplemaps US ZIP Codes (CC BY 4.0).
How does 78516 compare with the rest of Hidalgo County?
| Measure | 78516 | In Hidalgo County | In TX |
|---|---|---|---|
| People (ACS 2020-2024) | 34,370 | 14th of 30 | 313th of 1,990 |
| Median household income | $53k | 11th of 19 | 993rd of 1,172 |
| Median home value | $121k | 13th of 20 | 1,036th of 1,172 |
Its median household income is higher than in 19% of U.S. residential ZIP codes, and it is denser than 78% 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 78516?
The 2020 Census counted 34,506 people in 78516; the ACS, which samples households over 2020-2024, estimates 34,370. Between the 2010 and 2020 censuses its population grew 2.3% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 34,370
- 2020 Census count
- 34,506+2.3% since 2010 (33,722)
- Households
- 10,045
- Median age
- 30.1
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 78516?
Of the 34,370 people the ACS estimates in 78516, 29.8% are under 18 and 13.8% are 65 or older. The largest group by race and Hispanic origin is Hispanic or Latino (89.1%).
- Under 1829.8%
- 18 to 6456.4%
- 65 and older13.8%
- Hispanic or Latino89.1%
- White, not Hispanic8.5%
- Black, not Hispanic2.1%
- Other or two or more0.2%
- Asian, not Hispanic0.1%
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 78516 earn?
Median household income is $53,229 (ACS 2020-2024), the 11th highest of the 19 ranked ZIP codes in Hidalgo County. It rose from $43,347 in 2015-2019 (in 2024 dollars), a change larger than the surveys' margins of error.
- Median household income
- $53,229
- Income per person
- $19,701
- Below the poverty line
- 27.6%
- Unemployed (of the labor force)
- 10.0%
- Adults 25+ with a bachelor's degree
- 14.4%
- Adjusted gross income per tax return, 2022
- $37,73214,260 returns; wages 81% of AGI (IRS)
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 78516?
FHFA's house price index for 78516, built from repeat sales and appraisals of the same homes, rose 106% from 2015 to 2025 and rose 65% from 2020 to 2025, and moved +20.3% in 2025.
- Median home value (owners' estimate)
- $121,200
- Median gross rent
- $806
- Homes owned by their occupants
- 75.5%
- Housing units
- 12,353
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 78516?
297 business establishments had a location in this ZIP code in 2023, 6 more than in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade59
- Health care and social assistance38
- Accommodation and food services33
- Construction28
- Wholesale trade27
- Transportation and warehousing21
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 78516?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 78589 | San Juan | 40,231 | $54k | 2.4 mi |
| 78537 | Donna | 51,426 | $41k | 4.4 mi |
| 78542 | Edinburg | 89,401 | $55k | 20.0 mi |
| 78577 | Pharr | 80,540 | $53k | 4.7 mi (near) |
| 78503 | McAllen | 22,621 | $53k | 8.0 mi (near) |
| 78596 | Weslaco | 39,518 | $58k | 8.2 mi (near) |
| 78557 | Hidalgo | 14,498 | $59k | 8.5 mi (near) |
| 78501 | McAllen | 58,935 | $48k | 8.8 mi (near) |
| 78599 | Weslaco | 35,454 | $58k | 9.7 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.