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.
About Village of Mount Prospect, Cook County, IL Public Record Searches. Search the Village of Mount Prospect, public records using best found research sources online. This Village zip code is 60056 with a total population of 54,167. Look up recorded information of Mount Prospect, including demographics and local economy.