NULL Of 254 counties in the state, Zapata County ranks 69th by size (1,058 square miles). Zapata County is in Rio Grande Plains Texas. Recent listings of equestrian property for sale in Texas's Zapata County totals 1,000 acres and a combined market value of about $2 million. The most common type of land for sale by combined acreage in Zapata County is ranches. Browse all Zapata County horse farms for sale on the Land Network to find the equestrian property that's right for your future needs, whether you're a horse breeder, equestrian business or simply horse lover looking for stable facilities, grooming pens or grazing pasture for your own horses. The most common type of land for sale by combined acreage in Zapata County is ranches.