why do we need to use city and state in our addresses if ZIP codes are already linked to the city and state?
In: 100
In the US, it seems to be more for back up. But in the Netherlands, for example, postcodes (Dutch for zip codes) are actually really well organised.
A Dutch postcode consists of four numbers and two letters. And the way they set it up means that every combination of postcode and street number (not name) is unique. So if you want to enter your delivery details in a website, a well organised website will only ask you for your postcode and street number, and it’ll enter your street name and place name for you.
PostNL also sorts mail by postal code. Every post box has two slids: one for local mail, and one for less local and international stuff. And you can even order codes nowadays you write on your envelope so you don’t have to buy a stamp, though the price is roughly the same.
If you want to play with this, here’s a good website: https://postcode.tech/
*Corrected the postcode syntax.
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