Hoffman Estates is a northwestern suburb of Chicago in Illinois. The village is located primarily in Cook County with a small section in Kane County, Illinois. As of the 2000 census, the village population was 49,495 and estimated to be 52,520 in 2003. The village was incorporated in 1959 . Hoffman Estates turned into a major subdivision with Centex Corporation mass-producing houses on adjacent lots, rather than custom-building them on scattered lots. Some of the lots west of Roselle Road had been built on soft earth, marsh, and peat bogs; by the late 1960s, a few foundations had begun to crumble.