 In March 2018, Bloomberg ranked Chatham as the 64th wealthiest place in the United States, and the 8th wealthiest in New Jersey.The newly established, post-revolutionary war, state of New Jersey went through several stages setting out how its local governments would be structured.Once boroughs became available after 1878, Chatham Township lost all but one of the villages between 1889 and 1899, including Chatham Borough (settled in 1710), that had been drawn into it in 1806 as they seceded.