Based on the Gini coefficient, a measure that captures the level of income distribution in a given area, 24/7 Wall St. reviewed the 20 metropolitan areas with the most uneven income distribution, or the highest Gini coefficients. A Gini coefficient of 1 means all income belongs to a single individual, while a coefficient of 0 reflects a perfectly even distribution. The Bridgeport-Stamford-Norwalk, Connecticut, metro area leads the nation with the worst income distribution.With only a few exceptions, the metro areas with the widest gaps between rich and poor residents tend to have lower median household incomes. The majority of the 20 metro areas with the highest Gini coefficients have median household incomes more than $10,000 below the national median of $52,250.Average incomes, however, tell a different story. Because of the uneven income distribution, the average income is much higher in most of these metro areas.