36.7% of the households in Mercer County (North)--Princeton Borough PUMA, 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.
Mercer County (North)--Princeton Borough PUMA, NJ borders Hunterdon County PUMA, NJ, Middlesex County (Southwest) PUMA, NJ, Somerset County (South) PUMA, NJ, Mercer County (West Central)--Trenton City PUMA, NJ, Mercer County (Southwest) PUMA, NJ, Bucks County (Northern Central) PUMA, PA, and Bucks County (Southern Central) PUMA, PA.