The X Marks Interactive Map

[Tony]

How large of an area does a Zip code cover?

From the quite small, to the (usually) quite huge. Mine covers about 12x12 city blocks.

There is a 4 digit addition that can get down to within half a block or so, but few people bother with it.



West Philly representin'.

[Brian K]

From the quite small, to the (usually) quite huge. Mine covers about 12x12 city blocks.

There is a 4 digit addition that can get down to within half a block or so, but few people bother with it.

Actually, in much (most?) of the country the Zip+4 will narrow it down to an individual postal customer. I use a post office box and you could address a letter to me using just my name and the Zip+4 and it would have no trouble getting to me. In smaller cities and towns the Zip+4 also can be attached to specific buildings.

Regards,

Brian