Aurora is one of the principal cities of the Denver-Aurora-Lakewood, CO Metropolitan Statistical Area (Metro Denver). The city's population was 325,078 in the 2010 census, which made it the third most populous city in the state of Colorado and the 56th most populous city in the United States.
The first nine numbers in the lower, left-hand part of your check after the MICR character is your routing number. 1  Be sure to exclude any preceding MICR characters when determining your routing number.  Following your routing number, the next set of numbers, up until the next MICR character, is your account number.
There are two sets of nine digit numbers printed across the bottom of every check. They are followed by a four digit number slightly set off from the others. The first two sets of numbers are your bank routing and checking account numbers; these remain the same from one check to the next. The last set of numbers is the check number and will be different depending on the actual paper check. Your bank routing number is the first nine-digit number on the bottom of each check.