diff --git a/app/models/budget/heading.rb b/app/models/budget/heading.rb
index 1a232c75e..d740db502 100644
--- a/app/models/budget/heading.rb
+++ b/app/models/budget/heading.rb
@@ -10,6 +10,7 @@ class Budget
     validates :name, presence: true, uniqueness: { if: :name_exists_in_budget_headings }
     validates :price, presence: true
     validates :slug, presence: true, format: /\A[a-z0-9\-_]+\z/
+    validates :population, numericality: { greater_than: 0 }, allow_nil: true
 
     delegate :budget, :budget_id, to: :group, allow_nil: true
 
diff --git a/app/views/admin/budgets/_group.html.erb b/app/views/admin/budgets/_group.html.erb
index 8537fa477..3d65730cc 100644
--- a/app/views/admin/budgets/_group.html.erb
+++ b/app/views/admin/budgets/_group.html.erb
@@ -49,10 +49,17 @@
           <div class="row">
             <div class="small-12 medium-6 column">
               <label><%= t("admin.budgets.form.population") %></label>
-              <%= f.text_field :population,
+              <%= f.number_field :population,
                                 label: false,
                                 maxlength: 8,
-                                placeholder: t("admin.budgets.form.population") %>
+                                min: 1,
+                                placeholder: t("admin.budgets.form.population"),
+                                data: {toggle_focus: "population-info"} %>
+            </div>
+            <div class="small-12 medium-6 column " >
+              <div id="population-info" class="is-hidden" data-toggler="is-hidden">
+                <%= t("admin.budgets.form.population_info") %>
+              </div>
             </div>
           </div>
 
diff --git a/config/locales/en/admin.yml b/config/locales/en/admin.yml
index 4edad349f..2633724ac 100644
--- a/config/locales/en/admin.yml
+++ b/config/locales/en/admin.yml
@@ -104,6 +104,7 @@ en:
         table_heading: Heading
         table_amount: Amount
         table_population: Population
+        population_info: "Budget Heading population field is used for Statistic purposes at the end of the Budget to show for each Heading that represents an area with population what percentage voted. The field is optional so you can leave it empty if it doesn't apply."
       winners:
         calculate: Calculate Winner Investments
         calculated: Winners being calculated, it may take a minute.
diff --git a/config/locales/es/admin.yml b/config/locales/es/admin.yml
index 44cfa7600..067684df9 100644
--- a/config/locales/es/admin.yml
+++ b/config/locales/es/admin.yml
@@ -104,6 +104,7 @@ es:
         table_heading: Partida
         table_amount: Cantidad
         table_population: Población
+        population_info: "El campo población de las partidas presupuestarias se usa con fines estadísticos únicamente, con el objetivo de mostrar el porcentaje de votos habidos en cada partida que represente un área con población. Es un campo opcional, así que puedes dejarlo en blanco si no aplica."
       winners:
         calculate: Calcular propuestas ganadoras
         calculated: Calculando ganadoras, puede tardar un minuto.
diff --git a/spec/models/budget/heading_spec.rb b/spec/models/budget/heading_spec.rb
index ee2e4c142..76df1fa5c 100644
--- a/spec/models/budget/heading_spec.rb
+++ b/spec/models/budget/heading_spec.rb
@@ -25,4 +25,23 @@ describe Budget::Heading do
     end
   end
 
+  describe "Save population" do
+    it "Allows population == nil" do
+      expect(create(:budget_heading, group: group, name: 'Population is nil', population: nil)).to be_valid
+    end
+
+    it "Doesn't allow population <= 0" do
+      heading = create(:budget_heading, group: group, name: 'Population is > 0')
+      
+      heading.population = 0
+      expect(heading).not_to be_valid
+      
+      heading.population = -10
+      expect(heading).not_to be_valid
+      
+      heading.population = 10
+      expect(heading).to be_valid
+    end 
+  end
+
 end