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No. 20 Most Expensive Small Town: Old Westbury, N.Y.

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No. 20 Most Expensive Small Town: Old Westbury, N.Y.

By Venessa Wong

County*: Nassau
Population*: 5,289
Median home value*: $1,501,800
YOY Change*: +0.2%
Five-year Annualized Change*: -2.7%

This wealthy Long Island village, home to SUNY College at Old Westbury, has median household income of $203,125, according to Census Bureau estimates from 2006 to 2010. The U.S. average was $51,914.

* Data on all slides from Zillow.com. The ranking is based on median home values among towns with populations smaller than 10,000 in December 2011, the most recent data available. The December home values are noted in each slide.

Photograph by Getty Images