They all have 4 weeks, but February is the only one to have exactly 4 weeks (except in Leap years when it has 4 weeks and 1 day). April, June September and November each have 30 days = 4 weeks and 2 days. The rest of the months each have 31 days = 4 weeks and 3 days.
Prospect Heights, IL Other Information. 1  Located in COOK County, Illinois. 2  Prospect Heights, IL is also known as: 3  PROSPECT HTS, IL.
Mount Prospect, Illinois. Mount Prospect is a village in Elk Grove and Wheeling Townships in Cook County, Illinois, about 22 miles (35 km) northwest of downtown Chicago. As of the 2010 census, the village had a total population of 54,167. Contents.