Fastest-Appreciating ZIP Codes in Brownsville-Harlingen, TX (2026)

Ranked by 5-year compound annual growth in home values. Fast growth and strong cash flow rarely appear in the same ZIP — this is the other side of that trade.

# ZIP City Home value Rent Cap rate 5-yr growth
1 78526 Brownsville, TX $236,818 $1,930 6.36% 6.8%
2 78521 Brownsville, TX $172,838 $1,424 6.43% 6.6%
3 78578 Port Isabel, TX $262,941 $1,985 5.89% 6.6%
4 78520 Brownsville, TX $190,759 $1,512 6.18% 6.0%
5 78575 Rancho Viejo, TX $292,226 $1,600 4.27% 5.7%
6 78552 Harlingen, TX $226,143 $1,347 4.65% 5.1%
7 78566 Los Fresnos, TX $224,345 $1,650 5.74% 5.0%
8 78559 La Feria, TX $184,236 $1,035 4.38% 4.6%
9 78583 Rio Hondo, TX $209,385 $945 3.52% 4.4%
10 78593 Santa Rosa, TX $155,191 $891 4.48% 4.0%
11 78586 San Benito, TX $164,374 $1,200 5.69% 3.8%
12 78550 Harlingen, TX $179,935 $1,053 4.56% 3.3%

Ranked from Repit’s own ZIP-level data — Zillow home values and rents, HUD fair-market rents where Zillow has no coverage, and U.S. Census vacancy. Cap rate is gross: annual rent over purchase price, before financing and expenses. Every ZIP above links to its full free page. How we calculate this →