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None of the households in Mendham, NJ reported speaking a non-English language at home as their primary shared language. This does not consider the potential multi-lingual nature of households, but only the primary self-reported language spoken by all members of the household.
94.6% of the residents in Mendham, NJ are U.S. citizens.
Most people in Mendham, NJ drove alone to work, and the average commute time was 33.1 minutes. The average car ownership in Mendham, NJ was 2 cars per household.