Usually a farm is where people grow crops (corn, wheat, etc.). A ranch usually contains animals, like cattle. Ranches tend to be larger and can be found in the western United States. My childhood, when I lived with my family on an apple "ranch" in Washington State, causes me to remember one exception to this rule. The heartland refers to the agricultural core at the center of the nation. This appellation may vary slightly according to your location and whose chamber of commerce is doing the talking.

You can find the difference in the definition. Farm is an area of land, together with a house and buildings, used for growing crops and/or keeping animals as a business; a place where a particular type of animal is raised in large numbers to be sold. Ranch is a very large farm on which animals are kept, especially in North and South America + A farm is where the land is cultivated to produce food. A ranch is normally reserved for the production of cattle or other animals for grazing purposes.