diff --git a/src/Bundle/ChillPersonBundle/Export/Aggregator/HouseholdAggregators/ChildrenNumberAggregator.php b/src/Bundle/ChillPersonBundle/Export/Aggregator/HouseholdAggregators/ChildrenNumberAggregator.php
new file mode 100644
index 000000000..c629fe0bf
--- /dev/null
+++ b/src/Bundle/ChillPersonBundle/Export/Aggregator/HouseholdAggregators/ChildrenNumberAggregator.php
@@ -0,0 +1,108 @@
+<?php
+
+namespace Chill\PersonBundle\Export\Aggregator\HouseholdAggregators;
+
+use Chill\MainBundle\Export\AggregatorInterface;
+use Chill\MainBundle\Form\Type\ChillDateType;
+use Chill\PersonBundle\Export\Declarations;
+use Doctrine\ORM\QueryBuilder;
+use Symfony\Component\Form\FormBuilderInterface;
+use Symfony\Contracts\Translation\TranslatorInterface;
+
+class ChildrenNumberAggregator implements AggregatorInterface
+{
+    private TranslatorInterface $translator;
+
+    public function __construct(
+        TranslatorInterface $translator
+    ) {
+        $this->translator = $translator;
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getLabels($key, array $values, $data)
+    {
+        return function ($value): string {
+
+            if ($value === '_header') {
+                return 'Number of children';
+            }
+
+            return $this->translator->trans(
+                'household_composition.numberOfChildren children in household', [
+                'numberOfChildren' => $value
+            ]);
+        };
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getQueryKeys($data): array
+    {
+        return ['childrennumber_aggregator'];
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function buildForm(FormBuilderInterface $builder)
+    {
+        $builder->add('on_date', ChillDateType::class, [
+            'data' => new \DateTime('now'),
+        ]);
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function getTitle(): string
+    {
+        return 'Group by number of children';
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function addRole()
+    {
+        return null;
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function alterQuery(QueryBuilder $qb, $data)
+    {
+        $qb->addSelect('composition.numberOfChildren AS childrennumber_aggregator');
+
+        $groupBy = $qb->getDQLPart('groupBy');
+
+        if (!empty($groupBy)) {
+            $qb->addGroupBy('childrennumber_aggregator');
+        } else {
+            $qb->groupBy('childrennumber_aggregator');
+        }
+
+        // add date in where clause
+        $where = $qb->getDQLPart('where');
+
+        $clause = $qb->expr()->andX(
+            $qb->expr()->lte('composition.startDate', ':ondate'),
+            $qb->expr()->orX(
+                $qb->expr()->gt('composition.endDate', ':ondate'),
+                $qb->expr()->isNull('composition.endDate')
+            )
+        );
+    }
+
+    /**
+     * @inheritDoc
+     */
+    public function applyOn(): string
+    {
+        return Declarations::HOUSEHOLD_TYPE;
+    }
+}
\ No newline at end of file
diff --git a/src/Bundle/ChillPersonBundle/config/services/exports_household.yaml b/src/Bundle/ChillPersonBundle/config/services/exports_household.yaml
index b59537717..0b8c5f1ce 100644
--- a/src/Bundle/ChillPersonBundle/config/services/exports_household.yaml
+++ b/src/Bundle/ChillPersonBundle/config/services/exports_household.yaml
@@ -23,3 +23,10 @@ services:
         autoconfigure: true
         tags:
             - { name: chill.export_aggregator, alias: household_composition_aggregator }
+
+    chill.person.export.aggregator_household_childrennumber:
+        class: Chill\PersonBundle\Export\Aggregator\HouseholdAggregators\ChildrenNumberAggregator
+        autowire: true
+        autoconfigure: true
+        tags:
+            - { name: chill.export_aggregator, alias: household_childrennumber_aggregator }
diff --git a/src/Bundle/ChillPersonBundle/translations/messages.fr.yml b/src/Bundle/ChillPersonBundle/translations/messages.fr.yml
index f46bb1750..3f895e0c4 100644
--- a/src/Bundle/ChillPersonBundle/translations/messages.fr.yml
+++ b/src/Bundle/ChillPersonBundle/translations/messages.fr.yml
@@ -535,6 +535,8 @@ Accepted composition: Composition familiale
 "Filtered by composition: only %compositions% on %ondate%": "Filtré par composition familiale: uniquement %compositions%, en date du %ondate%"
 Group by composition: Grouper par composition familiale
 
+Group by number of children: Grouper par nombre d'enfants
+
 ## aggregators
 Group people by nationality: Grouper les personnes par nationalités
 Group by level: Grouper par niveau