# Micro id

Identifies the 5-digit Micropolitan Statistical Area code for the surrounding postcode, or NULL if the postcode is not in a micropolitan area.

- API name: `micro_id`
- Category: Geography
- Type · unit: Text
- Postcodes with a value: 0
- Latest collection: Dec 31, 2024, refreshed yearly
- How values combine: Read from a single source field.

## Links

- [Catalog page](/catalog/v2/micro_id)
- [Published statistics (JSON)](https://static.faraday.ai/figv2/micro_id.json)
- [API reference](/docs/reference/getattribute)