Richest ZIP codes in Cameron County, TX
These are the 13 ZIP codes in Cameron County with the highest median household income, out of 13 with at least 1,000 residents. 78575 (Olmito, $71,765), 78526 (Brownsville, $70,565) and 78552 (Harlingen, $69,811) lead the list. There is no single "best" ZIP code in Cameron County; the right one depends on who you want to reach, so the same ZIP codes are ranked several ways below.
Richest ZIP codes in Cameron County
| Rank | ZIP | Mailing city | Median household income | Residents | Households | Residential mailboxes |
|---|---|---|---|---|---|---|
| 1 | 78575 | Olmito | $71,765 ±$9,956 | 4,575 | 1,620 | 2,689 |
| 2 | 78526 | Brownsville | $70,565 ±$5,855 | 60,012 | 17,516 | 18,847 |
| 3 | 78552 | Harlingen | $69,811 ±$6,495 | 42,332 | 13,567 | 14,634 |
| 4 | 78597 | South Padre Island | $68,421 ±$18,605 | 2,935 | 1,642 | 613 |
| 5 | 78566 | Los Fresnos | $60,187 ±$8,841 | 25,110 | 7,241 | 8,016 |
| 6 | 78578 | Port Isabel | $51,880 ±$16,789 | 10,016 | 4,379 | 4,061 |
| 7 | 78583 | Rio Hondo | $51,453 ±$19,967 | 5,236 | 1,952 | 1,958 |
| 8 | 78520 | Brownsville | $50,116 ±$4,105 | 64,740 | 20,847 | 22,917 |
| 9 | 78559 | La Feria | $49,383 ±$5,656 | 12,169 | 4,275 | 5,048 |
| 10 | 78550 | Harlingen | $49,007 ±$2,670 | 53,335 | 19,733 | 21,652 |
| 11 | 78593 | Santa Rosa | $48,649 ±$12,125 | 5,455 | 1,555 | 852 |
| 12 | 78586 | San Benito | $45,575 ±$2,278 | 50,964 | 15,699 | 15,753 |
| 13 | 78521 | Brownsville | $44,509 ±$2,741 | 87,380 | 27,731 | 31,923 |
How we ranked them
Ranked by median household income (ACS 5-year estimates, 2020–2024). The Census Bureau caps published medians at $250,000; ZIP codes at the cap are shown as $250,000+ and ordered by population. ZIP codes need at least 1,000 residents to be ranked; 13 of 16 qualify.
Which of these to mail, and why
Higher-income ZIP codes suit offers with a bigger ticket: remodeling, pools, roofing, financial planning, private schools, premium dining. A median describes the middle household, not every door, so the routes inside each ZIP still vary.
The top five ZIP codes on this list hold 41,586 households, on 56 carrier routes with 44,799 residential mailboxes. Open any of them on the route map to see each carrier route's own figures before you choose.
Open 78575 on the EDDM route map
More rankings
- ZIP codes with the highest home values in Cameron County
- ZIP codes with the highest homeownership in Cameron County
- ZIP codes with the most families with kids in Cameron County
- ZIP codes with the most new movers in Cameron County
- Youngest ZIP codes in Cameron County
- Oldest ZIP codes in Cameron County
- Fastest-growing ZIP codes in Cameron County
- All Cameron County ZIP codes
Businesses that mail these ZIP codes
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EDDM guides
Frequently asked questions
- Which ZIP code in Cameron County has the highest median household income?
- 78575 (Olmito), at $71,765 (±$9,956), among 13 ZIP codes with at least 1,000 residents.
- How is this ranking calculated?
- Ranked by median household income (ACS 5-year estimates, 2020–2024). The Census Bureau caps published medians at $250,000; ZIP codes at the cap are shown as $250,000+ and ordered by population.
- Why are some ZIP codes missing?
- ZIP codes with fewer than 1,000 residents are left out because their survey estimates swing too much to rank, and so are ZIP codes where the Census Bureau did not publish this figure.
This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.