> ## Documentation Index
> Fetch the complete documentation index at: https://docs.wherobots.com/llms.txt
> Use this file to discover all available pages before exploring further.

# ST_Z (Python)

> Return the Z coordinate of a point geometry.

Return the Z coordinate of a point geometry.

SQL reference: [`ST_Z`](/reference/wherobots-db/geometry-data/accessors/ST_Z)

## Signature

```python theme={"system"}
from sedona.spark.sql.st_functions import ST_Z

ST_Z(point: ColumnOrName) -> Column
```

## Parameters

<ParamField path="point" type="ColumnOrName" required>
  Point geometry column to get the Z coordinate from.
</ParamField>

## Returns

<ResponseField name="return" type="Column">
  Z coordinate for the point geometry as a double column.
</ResponseField>


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