Montclair is a neighborhood in the City and County of Denver, Colorado, United States. The Denver U.S. Post Office (ZIP Code 80220) serves Montclair postal addresses.Neighborhood historyMontclair was originally developed as a small suburban community east of Denver. The land was purchased and developed by the Montclair Town and Improvement Company in 1885. One of its founders, Matthias P. Cochrane, originally came from Montclair, New Jersey and named the new community in its honor. The other founder, Baron Walter von Richthofen, was a German nobleman and uncle to Manfred von Richthofen, the celebrated World War I flying ace known as the 'Red Baron'. The community was originally designed to attract wealthier residents who were turned off by Denver's "400 saloons and forty Market Street bordellos". To this end, homeowners were required to purchase and build on lots that were twice the Denver standard size of 25 feet by 125 feet. Homes were required to be at last three stories high, made of brick or stone. In addition, town trustees had to approve all plans and saloons and alcohol were forbidden.The community became the incorporated town of Montclair in 1888. In 1893, the crash of the silver market and the ensuing Panic of 1893 brought all development to a halt. Baron von Richthofen then began to promote the town as a health retreat, calling it the 'Carlsbad of Colorado'. However, due to his sudden death from appendicitis in 1898, plans for a health spa, art museum, hotel, gymnasium, casino and pavilions never materialized. By 1900, the US Census recorded only eighty-eight families living in Montclair.
