Group 1 - The $4 million net worth milestone is rare in percentage terms, with fewer than 1 in 20 families achieving it, yet approximately 6 million households in the U.S. meet this threshold, representing about 4.8% of all households [4][8] - The Federal Reserve's Survey of Consumer Finances is the primary dataset used to measure household wealth in America, providing essential insights into the distribution of wealth among families [2] - Wealth perception varies significantly based on location and debt levels; for instance, $4 million in rural Iowa has different purchasing power compared to urban areas like San Francisco or New York [5][6] Group 2 - Achieving a net worth of $4 million places households in the upper tier of American wealth, significantly above the median net worth of around $192,000, indicating successful financial strategies over decades [7] - Contextual factors such as cost of living and personal debt play a crucial role in how wealth is perceived, affecting individuals' feelings of financial security [5][6]