Of 33 counties in the state, Grant County ranks 14th by size (3,967 square miles). Grant County is in Southwest New Mexico. The total value of roughly 2,000 acres of riverfront land recently listed for sale in New Mexico's Grant County was approximately $4 million. Browse all waterfront property for sale in Grant County on the Land Network to find the marina, lakefront and other recreational property that meets your needs, from waterside land perfect as a retirement investment to existing residential waterfront land and property for hunting, fishing and other outdoor-recreation pursuits! The most common type of land for sale by combined acreage in Grant County is house.