When writing a numerical street, do you use a cardinal number (220 Street) or ordinal number (220th Street)
closed as off-topic by Chenmunka, FumbleFingers, Dan Bron, Ellie Kesselman, user66974 Oct 22 '14 at 6:28
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The US Post Office web site will standardize an address with such a street to the ordinal version. So at least for addressing an envelope to an American recipient, the answer is ordinal.
Having said that, I should mentioned an exception. In some rural areas, otherwise-unnamed roads are numbered consecutively. In these cases, the word 'Road' precedes the number, e.g., Zillow has a record for
26180 County Road 97 Davis, CA 95616
(This is not my home; I found it with Google knowing the roads in that area. Road 98 is nearby.)
Miami's Calle Ocho, home of the Cuban community, is not an official Post Office designation AFAIK.