Plainsboro is a township in Middlesex County, New Jersey, with a population of approximately 24,084.
CountyMiddlesex
Population24,084
How Plainsboro Ranks
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Meetings
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All news →NewsAPR 10, 2026
Mercer Man Exposed Himself, Fought With Cops At Plainsboro Apartments, Police Say
Mercer Man Exposed Himself, Fought With Cops At Plainsboro Apartments, Police Say Patch
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NewsOCT 30, 2025
Novo Nordisk cuts over 800 jobs in Plainsboro as restructuring takes hold
Novo Nordisk cuts over 800 jobs in Plainsboro as restructuring takes hold New Jersey 101.5
New Jersey 101.5Read article ↗
NewsSEP 23, 2025
School community mourns loss of West Windsor-Plainsboro High senior
School community mourns loss of West Windsor-Plainsboro High senior New Jersey 101.5
New Jersey 101.5Read article ↗
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