Assertion: jersey's population | /r/AtLocation | county
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Source sentences:
text: As of 2010, New Jersey was the eleventh-most populous state in the United States, and the most densely populated, at 1,185 residents per square mile (458 per km2), with most of the population residing in the counties surrounding New York City, Philadelphia, and along the eastern Jersey Shore, while the extreme southern and northwestern counties are relatively less dense overall.