A biannual timeshare allows the owner to receive two weeks of timeshare every year. A biennial timeshare, which is far more common than biannual, allows the use of a week that occurs every other year. There are odd and even year biennial usages. Examples of a biennial even year would be 2008, 2010, 2012, etc. biennial timeshare, which is far more common than biannual, allows the use of a week that occurs every other year. There are odd and even year biennial usages. Examples of a biennial even year would be 2008, 2010, 2012, etc.
Naperville Township, DuPage County, Illinois. Naperville Township is one of nine townships in DuPage County, Illinois, USA. As of the 2010 census, its population was 100,019 and it contained 39,999 housing units. Contents.
The 331 area code is used for Naperville as well as its neighbor Aurora. As a fairly recent area code, it was implemented as an overlay to the 630 area code in 2007.Currently, the 331 area code is mainly preserved for small suburbs of western Chicago, including a few neighborhoods in the Cook and Dupage Counties.he Naperville area code is fairly wealthy with a median family income of $130,000. Furthermore, only 2.5% of the population in the 331 area code lives below the poverty line.