NULL Of 254 counties in the Lone Star State, Lamb County is 78th in terms of its size (1,017 square miles). Lamb County is in South Plains Texas. The total value of 1,000 acres of equestrian property recently listed for sale in Lamb County, Texas, was about $300,000. Browse all Lamb 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 Lamb County is house.