I am trying to use choice_filter to filter the number of points on a map

Good evening @Super_Kay and welcome to the ODK Community forum.
When you get a chance please take some time to introduce yourself here :slight_smile:

The choice_filter has to be applied on a column from the choices or entities list : https://docs.getodk.org/form-logic/#filtering-options-in-select-questions

In your case it should look like :

household_id = ${household_id}

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