Delivery is only available to addresses in the following zip codes:
61008, 61011, 61016, 61052, 61065, 61072, 61073, 61101, 61102, 61103, 61104, 61105, 61106,
61107, 61108, 61109, 61110, 61111, 61112, 61114, 61115, 61125, 61126, 61130, 61131, 61132

If delivery does not show up as an option for you after entering billing and shipping information, then delivery is not available at your address.