Welcome to Koeneman Agency, Chester Illinois Koeneman Agency is located in historic Chester, Illinois, the Home of Popeye. Our business office in Chester is located on State Street, right next to the Wal-Mart on Route 150. Please feel free to look at the different listings on our website and keep checking back as we add more listings. If you see something you like, feel free to contact us at (618) 826-2345. As we like to say "Everything We Touch Turns To Sold!"