Allendale, NJ, United States

With a median home price of $579,081, Allendale is firmly in the upper echelons of Bergen County's affluent suburbs. The population of 6,848 enjoys a high median household income of $131,563, though the bureaucracy can be a persistent headache as the borough works to address its affordable housing obligations. Leafy neighborhoods and access to parks make this an appealing option for families seeking a quiet, well-heeled enclave in northern New Jersey.