Wyckoff is a township in Bergen County, New Jersey, United States. As of the 2010 United States Census, the township's population was 16,696, reflecting an increase of 188 from the 16,508 counted in the 2000 Census, which had in turn increased by 1,136 from the 15,372 counted in 1990. As of the 2010 Census, Wyckoff ranked 55th in highest-income places in the United States with a population of at least 10,000 at $103,614 HHI. Statewide, Wyckoff ranked 41st among New Jersey locations by per capita income, with a per capita money income of $49,375 as of 1999, an increase of 49.1% from the $33,124 recorded in 1989.From the mid-18th century, what is now Wyckoff was a community within Franklin Township, formed on June 1, 1797, when Saddle River Township was split, which consisted of most of northern Bergen County west of the Saddle River.