Is Long Island very expensive?

1. Cost of Living in Long Island. The average cost of living for Long Island is 147 (the U.S. is 100), which is 47% higher than the national average. On the other hand, New York City's cost of living is 87% higher than the national average, so it's somewhat of a bargain compared to The Big Apple.



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As a general rule, the cheapest place to live on Long Island is the South Shore in Suffolk County or the central part of the island, but there are some affordable hamlets in Nassau County.

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Those in the upper middle class have incomes between $89,745 and $149,131. Upper class: Finally, the upper class is the top 20% of earners and they have incomes of $149,132 or higher.

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