Zip codes New Hampshire Merrimack

In modern conditions, with introduction of the highly technological equipment for mail sorting, it is enough to use a five-digit ZIP code.ZIP Codes are inherently discrete data, or point based data, as they are assigned only at the point of delivery, not the spaces in between the delivery points.ZIP Codes are inherently discrete data, or point based data, as they are assigned only at the point of delivery, not the spaces in between the delivery points.