NULL Of 254 counties in the Lone Star State, Cameron County ranks 36th in terms of size (1,276 square miles). Cameron County is in Lower Rio Grande Valley Texas. There is nearly 1,000 acres of recreational land and property for sale in Texas's Cameron County based on recent Land Network data. The combined market value of land and rural real estate for sale here is $2 million. Browse all recreational property for sale in Cameron County to find the recreational tract that suits your lifestyle needs, from hunting and fishing properties for the outdoor enthusiast to undeveloped acreage ready for future residential-property development. The most common type of land for sale by combined acreage in Cameron County is undeveloped land.