diff --git a/locale/en_US/LC_MESSAGES/django.po b/locale/en_US/LC_MESSAGES/django.po
index 6320d31b8b..5b66451526 100644
--- a/locale/en_US/LC_MESSAGES/django.po
+++ b/locale/en_US/LC_MESSAGES/django.po
@@ -4652,7 +4652,7 @@ msgid "X_VERSUS_Y"
 msgstr "{x_axis_label} vs. {y_axis_label}"
 
 msgid "X_VERSUS_Y_AGGREGATED"
-msgstr "{x_axis_label} vs. {y_axis_label} (Averaged)"
+msgstr "{x_axis_label} vs. {y_axis_label} ({aggregationType})"
 
 msgid "Y Axis"
 msgstr "Y Axis"
diff --git a/locale/es/LC_MESSAGES/django.po b/locale/es/LC_MESSAGES/django.po
index 20437b9fd6..225f67ed03 100644
--- a/locale/es/LC_MESSAGES/django.po
+++ b/locale/es/LC_MESSAGES/django.po
@@ -6025,7 +6025,7 @@ msgstr "{x_axis_label} vs. {y_axis_label}"
 
 #, fuzzy
 msgid "X_VERSUS_Y_AGGREGATED"
-msgstr "{x_axis_label} vs. {y_axis_label} (Agregado)"
+msgstr "{x_axis_label} vs. {y_axis_label} ({aggregationType})"
 
 #, fuzzy
 msgid "Y Axis"
diff --git a/locale/fr_CA/LC_MESSAGES/django.po b/locale/fr_CA/LC_MESSAGES/django.po
index ea5a3a2277..5caf7e5987 100644
--- a/locale/fr_CA/LC_MESSAGES/django.po
+++ b/locale/fr_CA/LC_MESSAGES/django.po
@@ -4692,7 +4692,7 @@ msgstr "{x_axis_label} contre {y_axis_label}"
 
 #, fuzzy
 msgid "X_VERSUS_Y_AGGREGATED"
-msgstr "{x_axis_label} contre {y_axis_label} (agrégé)"
+msgstr "{x_axis_label} contre {y_axis_label} ({aggregationType})"
 
 msgid "Y Axis"
 msgstr "Axe Y"
diff --git a/seed/static/seed/js/controllers/inventory_reports_controller.js b/seed/static/seed/js/controllers/inventory_reports_controller.js
index d6de79fc32..c2f3dce43a 100644
--- a/seed/static/seed/js/controllers/inventory_reports_controller.js
+++ b/seed/static/seed/js/controllers/inventory_reports_controller.js
@@ -288,6 +288,7 @@ angular.module('SEED.controller.inventory_reports', []).controller('inventory_re
 
     const localStorageXAxisKey = `${base_storage_key}.xaxis`;
     const localStorageYAxisKey = `${base_storage_key}.yaxis`;
+    const localStorageAggregationTypeKey = `${base_storage_key}.aggregationType`;
     const localStorageALIndex = `${base_storage_key}.ALIndex`;
     const localStorageALIID = `${base_storage_key}.ALIID`;
     const localStorageReportConfigID = `${base_storage_key}.RCID`;
@@ -300,6 +301,7 @@ angular.module('SEED.controller.inventory_reports', []).controller('inventory_re
       // Currently selected x and y variables - check local storage first, otherwise initialize to first choice
       $scope.yAxisSelectedItem = JSON.parse(localStorage.getItem(localStorageYAxisKey)) || $scope.yAxisVars[0];
       $scope.xAxisSelectedItem = JSON.parse(localStorage.getItem(localStorageXAxisKey)) || $scope.xAxisVars[0];
+      $scope.aggregationType = JSON.parse(localStorage.getItem(localStorageAggregationTypeKey)) || $scope.xAxisVars[0];
 
       $scope.level_name_index = JSON.parse(localStorage.getItem(localStorageALIndex)) || '0';
       const new_level_instance_depth = parseInt($scope.level_name_index, 10) + parseInt(users_depth, 10);
@@ -547,13 +549,15 @@ angular.module('SEED.controller.inventory_reports', []).controller('inventory_re
       try {
         interpolationParams = {
           x_axis_label: $translate.instant($scope.xAxisSelectedItem.label),
-          y_axis_label: $translate.instant($scope.yAxisSelectedItem.label)
+          y_axis_label: $translate.instant($scope.yAxisSelectedItem.label),
+          aggregationType: $translate.instant( $scope.aggregationType)
         };
       } catch (e) {
         $log.error('$sce issue... missing translation');
         interpolationParams = {
           x_axis_label: $scope.xAxisSelectedItem.label,
-          y_axis_label: $scope.yAxisSelectedItem.label
+          y_axis_label: $scope.yAxisSelectedItem.label,
+          aggregationType: $scope.aggregationType
         };
       }
       $scope.chart1Title = $translate.instant('X_VERSUS_Y', interpolationParams);
@@ -707,7 +711,7 @@ angular.module('SEED.controller.inventory_reports', []).controller('inventory_re
 
       $scope.aggChartIsLoading = true;
       inventory_reports_service
-        .get_aggregated_report_data(xVar, yVar, $scope.selected_cycles, $scope.access_level_instance_id, $scope.filter_group_id)
+        .get_aggregated_report_data(xVar, yVar, $scope.selected_cycles, $scope.access_level_instance_id, $scope.filter_group_id, $scope.aggregationType)
         .then(
           (data) => {
             data = data.aggregated_data;
@@ -763,6 +767,7 @@ angular.module('SEED.controller.inventory_reports', []).controller('inventory_re
       // Save axis and cycle selections
       localStorage.setItem(localStorageXAxisKey, JSON.stringify($scope.xAxisSelectedItem ?? ''));
       localStorage.setItem(localStorageYAxisKey, JSON.stringify($scope.yAxisSelectedItem ?? ''));
+      localStorage.setItem(localStorageAggregationTypeKey, JSON.stringify($scope.aggregationType ?? ''));
       localStorage.setItem(localStorageSelectedCycles, JSON.stringify($scope.selected_cycles));
       localStorage.setItem(localStorageALIndex, JSON.stringify($scope.level_name_index));
       localStorage.setItem(localStorageALIID, JSON.stringify($scope.access_level_instance_id));
diff --git a/seed/static/seed/js/services/inventory_reports_service.js b/seed/static/seed/js/services/inventory_reports_service.js
index 952c67c32a..7aeaf9a532 100644
--- a/seed/static/seed/js/services/inventory_reports_service.js
+++ b/seed/static/seed/js/services/inventory_reports_service.js
@@ -84,9 +84,9 @@ angular.module('SEED.service.inventory_reports', []).factory('inventory_reports_
        }
      }
      */
-    const get_aggregated_report_data = (xVar, yVar, cycle_ids, access_level_instance_id, filter_group_id) => {
+    const get_aggregated_report_data = (xVar, yVar, cycle_ids, access_level_instance_id, filter_group_id, aggregationType) => {
       // Error checks
-      if ([xVar, yVar, cycle_ids].includes(null)) {
+      if ([xVar, yVar, cycle_ids, aggregationType].includes(null)) {
         $log.error('#inventory_reports_service.get_aggregated_report_data(): null parameter');
         throw new Error('Invalid Parameter');
       }
@@ -99,7 +99,8 @@ angular.module('SEED.service.inventory_reports', []).factory('inventory_reports_
             y_var: yVar,
             cycle_ids,
             access_level_instance_id,
-            filter_group_id
+            filter_group_id,
+            aggregationType
           }
         })
         .then((response) => response.data)
diff --git a/seed/static/seed/locales/en_US.json b/seed/static/seed/locales/en_US.json
index e1b8749f73..99c2005508 100644
--- a/seed/static/seed/locales/en_US.json
+++ b/seed/static/seed/locales/en_US.json
@@ -1517,7 +1517,7 @@
     "X-Axis Field Options": "X-Axis Field Options",
     "XSS_TEST": "Accented téxt. <script>alert(\"XSS FAIL IN BASE TRANSLATION STRING\");<\/script>{injectedText}",
     "X_VERSUS_Y": "{x_axis_label} vs. {y_axis_label}",
-    "X_VERSUS_Y_AGGREGATED": "{x_axis_label} vs. {y_axis_label} (Averaged)",
+    "X_VERSUS_Y_AGGREGATED": "{x_axis_label} vs. {y_axis_label} ({aggregationType})",
     "Y Axis": "Y Axis",
     "YEAR_BUILT_THRESHOLD_HELP": "The year built to use as a comparison threshold in the calculations",
     "Year": "Year",
diff --git a/seed/static/seed/locales/es.json b/seed/static/seed/locales/es.json
index f2618c77ad..fdf9bc4d68 100644
--- a/seed/static/seed/locales/es.json
+++ b/seed/static/seed/locales/es.json
@@ -1517,7 +1517,7 @@
     "X-Axis Field Options": "Opciones de campo del eje X",
     "XSS_TEST": "Texto acentuado. <script>alert(\"XSS FAIL IN BASE TRANSLATION STRING\");<\/script>{injectedText}",
     "X_VERSUS_Y": "{x_axis_label} vs. {y_axis_label}",
-    "X_VERSUS_Y_AGGREGATED": "{x_axis_label} vs. {y_axis_label} (Agregado)",
+    "X_VERSUS_Y_AGGREGATED": "{x_axis_label} vs. {y_axis_label} ({aggregationType})",
     "Y Axis": "Eje Y",
     "YEAR_BUILT_THRESHOLD_HELP": "El año construido que se utilizará como umbral de comparación en los cálculos",
     "Year": "Año",
diff --git a/seed/static/seed/locales/fr_CA.json b/seed/static/seed/locales/fr_CA.json
index 42083e3a6e..e2d95d312a 100644
--- a/seed/static/seed/locales/fr_CA.json
+++ b/seed/static/seed/locales/fr_CA.json
@@ -1517,7 +1517,7 @@
     "X-Axis Field Options": "Options de champ de l'axe X",
     "XSS_TEST": "Texte accentée. <script>alert(\"XSS FAIL IN BASE TRANSLATION STRING\");<\/script>{injectedText}",
     "X_VERSUS_Y": "{x_axis_label} contre {y_axis_label}",
-    "X_VERSUS_Y_AGGREGATED": "{x_axis_label} contre {y_axis_label} (agrégé)",
+    "X_VERSUS_Y_AGGREGATED": "{x_axis_label} contre {y_axis_label} ({aggregationType})",
     "Y Axis": "Axe Y",
     "YEAR_BUILT_THRESHOLD_HELP": "L'année de construction à utiliser comme seuil de comparaison dans les calculs",
     "Year": "An",
diff --git a/seed/static/seed/partials/inventory_reports.html b/seed/static/seed/partials/inventory_reports.html
index 73f34f037f..1bf7a3f654 100644
--- a/seed/static/seed/partials/inventory_reports.html
+++ b/seed/static/seed/partials/inventory_reports.html
@@ -122,10 +122,14 @@ <h2 class="property-report-header"><i class="fa-solid fa-bar-chart pull-left"></
                   <label for="xAxisSelector">{$:: 'X Axis' | translate $}:</label>
                   <select class="form-control" id="xAxisSelector" ng-change="setModified()" ng-model="xAxisSelectedItem" ng-options="x.name for x in xAxisVars track by x.varName"></select>
                 </div>
-                <div class="form-group">
+                <div class="form-group pad-bottom-10">
                   <label for="yAxisSelector">{$:: 'Y Axis' | translate $}:</label>
                   <select class="form-control" id="yAxisSelector" ng-model="yAxisSelectedItem" ng-change="setModified()" ng-options="y.name for y in yAxisVars track by y.varName"></select>
                 </div>
+                <div class="form-group">
+                  <label for="aggregationTypeTypeSelector">{$:: 'Aggregation Type' | translate $}:</label>
+                  <select class="form-control" id="aggregationTypeSelector" ng-model="aggregationType" ng-change="setModified()" ng-options="t for t in ['Sum', 'Average']"></select>
+                </div>
                 <div class="form-group pad-top-10">
                   <p>
                     <span translate>Visit</span>
diff --git a/seed/views/v3/organizations.py b/seed/views/v3/organizations.py
index eaf9f1814c..b3e1085e14 100644
--- a/seed/views/v3/organizations.py
+++ b/seed/views/v3/organizations.py
@@ -1022,6 +1022,7 @@ def report_aggregated(self, request, pk=None):
         params = {
             "x_var": request.query_params.get("x_var", None),
             "y_var": request.query_params.get("y_var", None),
+            "aggregation_type": request.query_params.get("aggregationType", None),
             "cycle_ids": request.query_params.getlist("cycle_ids", None),
             "access_level_instance_id": request.query_params.get("access_level_instance_id", None),
         }
@@ -1083,7 +1084,9 @@ def report_aggregated(self, request, pk=None):
         for datum in data:
             buildings = datum["chart_data"]
             yr_e = datum["property_counts"]["yr_e"]
-            chart_data.extend(aggregate_data(yr_e, buildings, bins, count=params["x_var"] == "Count"))
+            chart_data.extend(
+                aggregate_data(yr_e, buildings, bins, count=params["x_var"] == "Count", aggregation_type=params["aggregation_type"])
+            )
             property_counts.append(datum["property_counts"])
 
         # Send back to client
@@ -1094,21 +1097,30 @@ def report_aggregated(self, request, pk=None):
 
         return Response(result, status=status.HTTP_200_OK)
 
-    def continuous_aggregate_data(self, yr_e, buildings, bins, count=False):
+    def continuous_aggregate_data(self, yr_e, buildings, bins, count=False, aggregation_type="Average"):
         buildings = [b for b in buildings if b["x"] is not None and b["y"] is not None]
         binplace = np.digitize([b["y"] for b in buildings], bins)
         xs = [b["x"] for b in buildings]
 
+        if count or aggregation_type == "Sum":
+            aggregate = sum
+        elif aggregation_type == "Average":
+
+            def average(x):
+                return np.average(x).item()
+
+            aggregate = average
+
         results = []
         for i in range(len(bins) - 1):
             bin = f"{round(bins[i], 2)} - {round(bins[i+1], 2)}"
             values = np.array(xs)[np.where(binplace == i + 1)]
-            x = sum(values) if count else np.average(values).item()
+            x = aggregate(values)
             results.append({"y": bin, "x": None if np.isnan(x) else x, "yr_e": yr_e})
 
         return results
 
-    def discrete_aggregate_data(self, yr_e, buildings, bins, count=False):
+    def discrete_aggregate_data(self, yr_e, buildings, bins, count=False, aggregation_type="Average"):
         xs_by_bin = {bin: [] for bin in bins}
 
         for building in buildings:
@@ -1116,12 +1128,15 @@ def discrete_aggregate_data(self, yr_e, buildings, bins, count=False):
 
         results = []
         for bin, xs in xs_by_bin.items():
-            if count:
+            if count or aggregation_type == "Sum":
                 x = sum(xs)
-            elif len(xs) == 0:
-                x = None
+            elif aggregation_type == "Average":
+                if len(xs) == 0:
+                    x = None
+                else:
+                    x = sum(xs) / len(xs)
             else:
-                x = sum(xs) / len(xs)
+                raise ValueError(f"Bad aggregation_type: {aggregation_type}")
 
             results.append({"y": bin, "x": x, "yr_e": yr_e})