Zionsville is a suburban town located in the extreme southeast area of Boone County, Indiana, United States, northwest of Indianapolis. The population was 14,160 at the 2010 census, 30,693 at the 2020 census, and grew to 33,891 in the 2022 estimates. Zionsville promotes itself as a tourist attraction, centered on its village-styled downtown area. This area consists primarily of Main Street, paved entirely in brick, which is lined with small retail stores and restaurants. History Zionsville was laid out in 1852 when the railroad was extended to that point. It was named for William Zion, a pioneer settler. Abraham Lincoln made a whistle-stop speech in Zionsville in 1861 when traveling to his inauguration. Town Hall (Castle Hall) was listed on the National Register of Historic Places in 1983. Geography Zionsville is located at (39.953092, -86.269462), approximately northwest of Downtown Indianapolis. According to the 2010 census, Zionsville has a total area of , of which (or 99.63%) is land and (or 0.37%) is water. In 2010, Zionsville annexed of land in Eagle and Union townships. This increased the area of the town to and added 9,159 residents as of 2013. In 2014, Zionsville gained an additional of area as a result of annexing portions of Perry Township, bringing the current area of the town to . Climate The climate in this area is characterized by hot, humid summers and cold winters. According to the Köppen Climate Classification system, Zionsville has a humid continental climate, abbreviated "Dfa" on climate maps. Its inclusion in this climatic type is because of its four distinct seasons, large ranges between high summer temperatures and low winter temperatures, and enough precipitation to exclude arid or semi-arid classification. Transportation Highways Interstate 65 Interstate 465 Interstate 865 US 52 - concurrent with Interstate 65, 465, and 865 US 421 State Road 32 State Road 267 Airports The Indianapolis Executive Airport (KTYQ) is located approximately five nautical miles (5.8 mi, 9.3 km) north of Zionsville's downtown area and acts as a reliever airport for Indianapolis International Airport. Railroads and Trails The Lafayette and Indianapolis Railroad line traversing Zionsville was owned and operated by a number of companies from its inception in 1852 until it was abandoned in 1976. In the 1990s, Zionsville re-purposed portions of the former railroad line as a shared use path. It is currently known as Big-4 Rail Trail. The Rail Trail links various parks, neighborhoods, and