Pekin Il Zip Code for Dummies Table of ContentsGetting My Pekin Illinois To WorkHow Pekin Il Zip Code can Save You Time, Stress, and Money.Not known Facts About Pekin Il PopulationExamine This Report about Pekin IllinoisAbout Pekin IlAaron Orendorff, the initial inhabitant, built a log cabin on area 34, in 1827, Messrs. Whitten and Shaw came next.