Over the 20th century, the number of farms and people living on farms in the US dramatically declined, especially after World War 2. While farming as an industry employs fewer people and contributes less to GDP, average farm acreage, sales, and land values have grown significantly. This indicates a shift towards fewer, larger farms. Large farms now vastly outproduce small farms due to economies of scale and greater access to subsidies, which disproportionately benefit large farms. The US has also become more urban, with higher incomes, education levels, and living standards in cities compared to rural areas.