How to Filter Data in QGIS

Updated on:

June 8, 2026

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Use this interactive demo to learn how to apply a data filter query to a layer in QGIS.

Quick summary

Filtering data in QGIS lets you display only the map features that match a specific query expression, without permanently deleting any records. You access the Filter dialog by right-clicking a layer, build your expression using available fields and operators, and confirm it to apply the filter instantly.

Steps

Right-click a layer in the Layers Panel and choose Filter from the context menu.
In the expression box that appears, build a query using the available fields and operators to define your filter condition.
Click OK to apply the filter query to the layer.
Confirm the filter is active by looking for the Filter icon displayed on the layer in the Layers Panel, which indicates a query is currently running on that layer.

📌 Why this matters

Filtering data in QGIS is a core spatial analysis skill that lets GIS professionals and analysts isolate specific features from large datasets without altering the original data. By applying a query expression directly to a layer, users can focus their map view on only the records that meet defined criteria, improving both analysis accuracy and map readability. This capability is essential for urban planners, environmental scientists, and data analysts who need to work with subsets of geospatial data efficiently. QGIS's built-in filter tool makes this process fast and non-destructive, preserving the full dataset while displaying only what matters.

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