---
id: "us_zip_plus4"
kind: "pattern"
status: "draft"
is_pii: true
categories: ["geo", "pii", "common"]
country: ["US"]
langs: ["en"]
quality: 90
url: "https://registry.apicrafter.io/datatype/us_zip_plus4"
---

# US ZIP+4 code (`us_zip_plus4`)

> **Draft.** Draft records have not been reviewed yet and may be incomplete or wrong; do not treat them as authoritative for legal or compliance decisions.

US postal code in the ZIP+4 format - a five-digit ZIP Code, a hyphen and four digits for the sector and segment, which narrow the delivery area down to a few addresses, a building or a floor. USPS writes it with the hyphen.

- Pattern of: `postindex`
- Personal data (PII): yes
- Categories: Geographic identifiers (geo), Personally identifiable information (pii), Common (common)
- Countries: United States (US)
- Languages: English (en)
- Classification: categorical

## Detection

Regular expression (Python `re`):

```
^[0-9]{5}-[0-9]{4}$
```

## Examples

- `20408-0001` — National Archives, Washington, DC (US Government Manual 2009)
- `20260-2435` — USPS Citizens' Stamp Advisory Committee (USPS Domestic Mail Manual archive)
- `20408-001` (invalid example) — three digits after the hyphen

## Mappings

- fibo: <https://spec.edmcouncil.org/fibo/ontology/FND/Places/NorthAmerica/USPostalServiceAddresses/ZIPPlus4Code>

## Translations

- ru: Почтовый индекс США в формате ZIP+4

## Sources

- wikipedia: <https://en.wikipedia.org/wiki/ZIP_Code>
- doc: <https://pe.usps.com/text/dmm300/602.htm>

## Quality

Score 90/100. Missing: detector coverage.

JSON: <https://registry.apicrafter.io/api/v1/datatypes/us_zip_plus4.json> · Edit: <https://github.com/apicrafter/metacrafter-registry/edit/main/data/datatypes/US/geo/us_zip_plus4.yaml>