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Matches 5 numeric digits, such as a zip code.

This expression matches three different formats of postal codes: 5 digit US ZIP code, 5 digit US ZIP code + 4, and 6 digit alphanumeric Canadian Postal Code. The first one must be 5 numeric digits. The ZIP+4 must be 5 numeric digits, a hyphen, and then 4 numeric digits. The Canadian postal code must be of the form ANA NAN where A is any uppercase alphabetic character and N is a numeric digit from 0 to 9.

Matches standard 5 digit US Zip Codes, or the US ZIP + 4 Standard.

This expression matches three different formats of postal codes: 5 digit US ZIP code, 5 digit US ZIP code + 4, and 6 digit alphanumeric Canadian Postal Code. The first one must be 5 numeric digits. The ZIP+4 must be 5 numeric digits, a hyphen, and then 4 numeric digits. The Canadian postal code must be of the form ANA NAN where A is any uppercase alphabetic character and N is a numeric digit from 0 to 9.

US zip code expression that disallows 00000 or 00000-0000 for either ZIP or ZIP+4. Great for web site validation.

US Zip Code + 4 digit extension Postal Code

Validate US zip codes. Matches all zip codes of exactly 5 digits except 00000. Optionally, matches zip5+zip4 where zip5 is exactly 5 digits, zip4 is exactly 4 digits, and zip5 and zip4 are, optionally, separated by a single space or hyphen. Captures zip5 and zip4 to named groups to facilitate program manipulation.

Just for US zip codes. Very simple but effective regex for verifying a number that resembles a zip code. The post office number is optional.

This is a combination of Jerry Schmersahl's (http://regexlib.com/REDetails.aspx?regexp_id=930) US ZIP Code regex and John Alpha's (http://regexlib.com/REDetails.aspx?regexp_id=2754) Canadian Postal Code regex. It takes a Canadian postal code with or without a space and matches the first three digits to the named reference 'part1', the second three digits to the named reference 'part2', and the entire code (if a match) to the named reference 'full'

This matches all 5 digit numbers whose first three digits match valid US ZIP code prefixes.

Match 5-digit or 9-digit US zip codes with grouped results. Remember to replace < with open tag char and > with close tag char

This expression matches two different formats of zip codes: 5 digit US ZIP code and 5 digit US ZIP code + 4.The first one must be 5 numeric digits. The ZIP+4 must be 5 numeric digits, a hyphen, and then 4 numeric digits.

This expression more loosely matches three different formats of postal codes: 5 digit US ZIP code, 5 digit US ZIP code + 4, and 6 digit alphanumeric Canadian Postal Code. The first one must be 5 numeric digits. The ZIP+4 must be 5 numeric digits, a hyphen (optional), and then 4 numeric digits. The Canadian postal code must be of the form ANANAN where A is any alphabetic character (case insensitive) and N is a numeric digit from 0 to 9. A space between the 2nd "A" and 2nd "N" is optional but not required, so the form could also be interpreted as "ANA NAN"

This expression will match 5 or 9 digit US zip codes

Regex to allow only 9 digit zip code with or without dashes