With a Jewish population of some 280,000, more than 265,000 live in Chicago alone, while the rest are spread in small communities of a few hundred each. Though the first Jews reached Illinois in the 18th century, Jews did not start settling throughout the state until the second half of the 19th. More than 100,000 arrived at the turn of the century, and most settled in Chicago. Henry Horner served as governor from 1932 to 1940.