Need Help Addressing Envelopes

Ok so I feel a little stupid having to ask but I know that you are supposed to spell out numbered streets but some of them I am confused about. Lets say it is 160th ST, how do I write that out? Also if you are sending to a P.O. Box did you spell out Post Office Box?
Thanks

There seems to be varying opinions WRT writing out street numbers. Some people say only the number 1...some say up to the # 20. I wrote out #'s up to 20 - mostly b/c I like the look of it. I also wrote out 45th Street as Forty-Fifth Street...again, b/c I like the look of it not b/c of ettiquette.

Definitely write out Post Office Box and all States.

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Posted by Jordan

There seems to be varying opinions WRT writing out street numbers. Some people say only the number 1...some say up to the # 20. I wrote out #'s up to 20 - mostly b/c I like the look of it. I also wrote out 45th Street as Forty-Fifth Street...again, b/c I like the look of it not b/c of ettiquette.

Definitely write out Post Office Box and all States.

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I thought it was only up to #10?

Either way, I didn't write out the street numbers (I drove myself crazy enough!), but I did write out all states and 'apartment.'

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Posted by eroxgirl

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Posted by Jordan

There seems to be varying opinions WRT writing out street numbers. Some people say only the number 1...some say up to the # 20. I wrote out #'s up to 20 - mostly b/c I like the look of it. I also wrote out 45th Street as Forty-Fifth Street...again, b/c I like the look of it not b/c of ettiquette.

Definitely write out Post Office Box and all States.

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I thought it was only up to #10?

Either way, I didn't write out the street numbers (I drove myself crazy enough!), but I did write out all states and 'apartment.'

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See, lots of opinions! I once read that you should write out 30, 40, 50, etc.

I also wrote out Apartment.

from what i have heard (and what i did) all numbers below 20 should be spelled out along w/ PO Box and apt

i.e;

One Maple Drive
Nineteen Main Street

Post Office Box 123

Apartment #5