The Central Geneva Historic District is a set of 102 buildings and structures in Geneva, Illinois, one of Chicago's far western suburbs. Of those, 68 contribute to the district's historical integrity. It encompasses most of the southern half of the town as it was originally platted. It is roughly bounded by the Fox River and South, 6th and State Streets, south of Illinois Route 38 or Roosevelt Road. It was added to the National Register of Historic Places in 1979. Among the notable buildings is the Kane County Court House and the Frank Lloyd Wright-designed P. D. Hoyt House. Most houses are two-story frame residences built between 1840 and 1900. Wright's P. D. Hoyt House was designed and built in the Prairie School style of architecture in 1906. But the Greek Revival Unitarian Church was built in 1843 and the vernacular Eben Conant House in 1844 and the Benjamin Wilson House in 1848 and the Italianate Augustus Herrington House in 1851 and the Neoclassical Charles B. Wells House in 1850. The Kane County Court House, the focal point of the district, is the only structure in the 67-acre area to exceed three stories. Geneva's reputation as a scenic shopping area has contributed to the popularity of the district.