1.   In contrast, local bus usage was associated with those living in the lowest income households.

2.   It happens at all income levels, with married couples and couples living together, although women who are making more tend to be in lower income households.

3.   The loss of rental income and the loss of low income households went hand in hand, St. John argues.

4.   Analysts point to a variety of factors, including the growing number of single mothers and two income households in the workforce.

5.   Two income households are common.