city/state-province/country data

I have the info on zip/postal code data on usa and canada that includes all states/province and city names. I have been look for a product of the country that lists countries, states/provinces and cities data. For example, if I choose a country of United Kingdom from a country menu (pull down menu), then the next field will automatically display cities in UK. I know there is a product on the market, I cant find it. If you know where the source including all countries, provinces and cities DATA is. I dont want to buy a product that requires us to enter the country, state/province, city name info manually. I am looking for a product to come with regional data. I will be happy to pay $20 for reference. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Installation package that will install the software (in ready-to-run condition) on the platform(s) specified in this bid request. 3) Complete ownership and distribution copyrights to all work purchased. ## Platform my sql / linux