Cook County

The flag of , Illinois, is a white background with a fimbriated pall of light blue, white and green to the right, and six red seven-pointed stars in a circular pattern to the left. The flag was designed by Andrew Duffy, a student at Glenbrook South High School, with the guidance of graphic designer Martin Burciaga from the Cook County Bureau of Administration for a flag redesign competition and it is named the "I Will Banner".
==Symbolism ==
The blue symbolizes the county’s rivers and Lake Michigan, green is for the county’s nature and forest preserves, and white, the color of locomotive steam, represents innovation and commerce. 
The Y shape pays homage to the merging of the branches of the Chicago River. The six stars are each seven-pointed to represent each county region, plus Chicago and the forest preserves. 
There are six stars to represent the county’s founding in 1831; the opening of its flagship hospitals; the department of public health; forest preserves; the Arthur J. Audy home for juvenile detainees; and the county’s townships and local governments. 
The stars’ red color represents the county’s bold history of “protest and progress,” including Martin Luther King Jr.’s fights for equal housing and workers’ rights in Chicago, Jane Addams’ founding of Hull House, and the Jewish residents of Skokie pushing back against Nazi protests.
==Former flag==
The former flag of Cook County is a white field with a cobalt blue circular band, edged in golden yellow. Mounted on the blue band and arranged in a circle are 38 small five-pointed stars, representing the 30 townships within Cook County outside of the City of Chicago, and the eight townships within Chicago. A 39th star, larger than the others, represents Chicago, the county's seat of government, and appears on the apex of the circular band.
On the white field within the blue band is an outline of the county map, upon show township lines. This map golden yellow, with border lines and township lines traced in madder carmine. Across the map and extending on each of its sides, but still within the blue band, is a white scroll, delineated in cobalt blue. The scroll bears the inscription "JANUARY 1831," designating the month and year in which Cook County was created by the Illinois legislature.
On the white field above the central design appears in bold letters the word "COOK," and beneath the design, the word "COUNTY." The words on the flag are colored in madder carmine.
Category:Illinois
Category:United States Counties
Category:White background
Category:Green
Category:Stars
Category:Blue
Category:Red
Category:Eastern USA
Category:Cook County
Category:Pall design
Category:Seven-pointed stars