The 'AAA' rating on Naperville, Ill.'s GO bonds reflects the city's: Participation in the deep and diverse Chicago, Ill. MSA economy; Large, well-diversified, and steadily growing tax base; Very high wealth and income levels; Very strong financial management and performance; and Moderate debt burden. Located 30 miles west of Chicago in DuPage County, Naperville is a rapidly growing community with a strong corporate presence. The city's population, now estimated at 137,023, increased 50% during the 1990s after doubling in the previous decade, making it the fourth-largest city in the state and Chicago's second-largest suburb. Much of the city's rapid growth has been due to job growth along the Interstate 88 East-West Tollway corridor, which passes through the city's northern border.
