Regex to match ZIP in an address

Question

I have address blocks such as

10004 South 152nd St. #A
Omaha
Nebraska
68138  United States

I am trying to find a RegEX that would match the ZIP code only and not pick up the number in the street.

I tried \d+ but it picks up the first set of numbers in the street. There are about a 1000 addresses like this.

Kindly advise

Thanks

Lots of us are not Americans. Can you tell in words how you know that `10004` is not a zip, and `68138` is? — Amadan, Jan 27 '17 at 08:43
Is the ZIP always next to US? Try `\d+(?=\s+United States)`. — Wiktor Stribiżew, Jan 27 '17 at 08:43
That works perfectly, Wiktor. Thanks a lot for your prompt help — pb_ng, Jan 27 '17 at 08:45
Amadan - I was looking to match a preceding or following string to identify the number as a zip, as Wiktor has suggested. Thanks — pb_ng, Jan 27 '17 at 08:47

score 2 · Accepted Answer · answered Jan 27 '17 at 08:48

2

Assuming all the addresses are U.S. ones, you may match the numbers that are followed with 1+ whitespaces and the United States words.

\d+(?=\s+United States)

See the regex demo

The (?=\s+United States) positive lookahead will require the whitespaces and United States after 1+ digits (\d+) but won't return that text in the match value. Alternatively, you may use capturing group:

(\d+)\s+United States

And grab Group 1 value.

It might be a good idea to also make your regex case insensitive with the (?i) / /i modifier.

answered Jan 27 '17 at 08:48

Wiktor Stribiżew

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Thanks a lot, Wiktor. I am learning RegEX so this is a huge help for me. – pb_ng Jan 27 '17 at 08:50
1

If you have other context markers, you may inlcude them as alternatives: `\d+(?=\s+(?:United States|U\.S\.))` or `(\d+)\s+(?:United States|U\.S\.)` (to also match the digits before `U.S.`). – Wiktor Stribiżew Jan 27 '17 at 08:55
Thanks again, Wiktor – pb_ng Jan 27 '17 at 08:56

Regex to match ZIP in an address

1 Answers1