Classify Zip Code Notification For Free

Zip codes are always 5 characters, hence you would need a CHAR datatype, rather than VARCHAR. The first takes 5 bytes per zip code.

Also called plus-four codes, add-on codes, or add-ons, the ZIP+4 code starts with the standard five-digit ZIP Code. The four extra numbers are added after a hyphen to complete the ZIP+4. So what do the extra numbers mean? These last 4 digits represent specific delivery routes within delivery areas.

Some variables, such as social security numbers and zip codes, take numerical values, but are not quantitative: They are qualitative or categorical variables. The sum of two zip codes or social security numbers is not meaningful.

How to Use the Assessment to Analyze ZIP Code Data Select an Area to Assess at the ZIP code level. Select Indicators. Generate the Assessment and Show ZIP code Data. Download ZIP code Data. Learn More About ZIP codes, ZCTAs, and Calculations.

Stores want your ZIP code because, combined with your name from your credit card, they can use it to find out other information about you from commercial databases, like your full mailing address. They may even sell the information to data brokers, who sell it to other marketers.

ZIP Code in American English 1. a system of code numbers assigned by the postal service to be used as part of the mailing address: each code designates a delivery area. 2. [ usually zip c-] such a code number, typically consisting of five digits, although often expanded to nine.

United States ZIP codes are five numerical digits long. ZIP+4 codes, also known as add-on or plus-four codes, include four additional digits that identify a geographic segment within a ZIP code delivery area. The first digit in a ZIP code represents a defined group of U.S. states.