Westfield is a city in Hamilton County, Indiana, United States. In the year 2010 United States Census, the population was 30,068. Westfield is in the Indianapolis Metropolitan Area.
Westfield was founded on May 6, 1834, by North Carolina Quakers—Asa Bales, Ambrose Osborne, Simon Moon, and Simon Barker. It is believed that the town was planned as a stop on the Underground Railroad with many families of the Religious Society of Friends and the Wesleyan Methodist Church supporting the cause. When the laws against aiding escaped slaves were harshened, part of the Westfield Quaker Friends Meeting House split into the Anti-Slavery Friends meeting.
On January 1, 2008, the town of Westfield incorporated; and Andy Cook was sworn in as Mayor. With recent annexations in southern Washington Township and rapid population growth in areas already occupied by the pre-existing town, the City government estimates Westfield's population to be at roughly 30,000 residents. Because of the growing size of the city, officials are planning a major revamp of the downtown. This would possibly include building a new library and city hall.