There is quite a range - from about $117 (for a 3-bedroom, 2 bath townhouse) to $227 (for a relatively small rambler at about $300K or a large "lodge" home at just under $850K). Average is $165, and average size is about 2300 square feet. There are about 40 new homes for sale in Hudson as of April 24. Per square foot price isn't really a good indicator by itself - you really have to know more about what type of property, where it is, etc.
Please let me know if you wnat more info!