population v1.0.0

This program displays data and statistics about various zip codes in the U.S., including:

• which zip code is the smallest or the largest

• of zip codes in the database

• zip with the highest wages
• zip with the lowest wages
• how many tax returns are filed in a particular region

To Run the program

At the command prompt, type 'ruby population.rb'

Zip Code Data File

The zip code data used for this program was downloaded from the following federal government website:

http://federalgovernmentzipcodes.us/