diff --git a/app/assets/stylesheets/admin/locales/form.scss b/app/assets/stylesheets/admin/locales/form.scss
index 7c1b36384..c834ee28b 100644
--- a/app/assets/stylesheets/admin/locales/form.scss
+++ b/app/assets/stylesheets/admin/locales/form.scss
@@ -7,6 +7,10 @@
     width: auto;
   }
 
+  .help-text {
+    display: block;
+  }
+
   > select + fieldset,
   > fieldset + fieldset {
     margin-top: $line-height / 2;
diff --git a/app/components/admin/locales/form_component.html.erb b/app/components/admin/locales/form_component.html.erb
index 109960c97..6c8bbb291 100644
--- a/app/components/admin/locales/form_component.html.erb
+++ b/app/components/admin/locales/form_component.html.erb
@@ -1,37 +1,36 @@
-<%= form_tag admin_locales_path, method: :patch, class: "locales-form" do %>
+<%= form_for locales_settings, url: admin_locales_path, html: { class: "locales-form" } do |f| %>
   <% if many_available_locales? %>
-    <%= label_tag "default_locale", t("admin.locales.default") %>
-    <p class="help-text"><%= sanitize(t("admin.locales.default_help_text")) %></p>
-    <%= select_tag "default_locale", locales_options %>
+    <%= f.select :default, locales_options, hint: sanitize(t("admin.locales.default_help_text")) %>
   <% else %>
     <fieldset>
-      <legend><%= t("admin.locales.default") %></legend>
+      <legend><%= attribute_name(:default) %></legend>
       <p class="help-text"><%= sanitize(t("admin.locales.default_help_text")) %></p>
 
       <div class="collection-radio-buttons">
-        <% available_locales.each do |locale| %>
-          <%= label_tag "default_locale_#{locale}" do %>
-            <%= radio_button_tag "default_locale", locale, locale == default %>
-            <%= name_for_locale(locale) %>
-          <% end %>
+        <%= f.collection_radio_buttons(
+          :default,
+          available_locales,
+          :to_sym,
+          ->(locale) { name_for_locale(locale) }
+        ) do |b| %>
+          <%= b.label { b.radio_button + b.text } %>
         <% end %>
       </div>
     </fieldset>
   <% end %>
 
   <fieldset>
-    <legend><%= t("admin.locales.enabled") %></legend>
+    <legend><%= attribute_name(:enabled) %></legend>
     <p class="help-text"><%= t("admin.locales.enabled_help_text") %></p>
 
     <div class="collection-check-boxes">
-      <% available_locales.each do |locale| %>
-        <%= label_tag "enabled_locales_#{locale}" do %>
-          <%= check_box_tag "enabled_locales[]",
-                            locale,
-                            enabled_locales.include?(locale),
-                            id: "enabled_locales_#{locale}" %>
-          <%= name_for_locale(locale) %>
-        <% end %>
+      <%= f.collection_check_boxes(
+        :enabled,
+        available_locales,
+        :to_sym,
+        ->(locale) { name_for_locale(locale) }
+      ) do |b| %>
+        <%= b.label { b.check_box + b.text } %>
       <% end %>
     </div>
   </fieldset>
diff --git a/app/components/admin/locales/form_component.rb b/app/components/admin/locales/form_component.rb
index 6e96e0b8b..4cd16bc85 100644
--- a/app/components/admin/locales/form_component.rb
+++ b/app/components/admin/locales/form_component.rb
@@ -1,10 +1,9 @@
 class Admin::Locales::FormComponent < ApplicationComponent
-  attr_reader :enabled_locales, :default
+  attr_reader :locales_settings
   use_helpers :name_for_locale
 
-  def initialize(enabled_locales, default:)
-    @enabled_locales = enabled_locales
-    @default = default
+  def initialize(locales_settings)
+    @locales_settings = locales_settings
   end
 
   private
@@ -18,13 +17,14 @@ class Admin::Locales::FormComponent < ApplicationComponent
     end
 
     def locales_options
-      options_for_select(
-        available_locales.map { |locale| [name_for_locale(locale), locale] },
-        default
-      )
+      available_locales.map { |locale| [name_for_locale(locale), locale] }
     end
 
     def select_field_threshold
       10
     end
+
+    def attribute_name(...)
+      locales_settings.class.human_attribute_name(...)
+    end
 end
diff --git a/app/components/admin/locales/show_component.html.erb b/app/components/admin/locales/show_component.html.erb
index 399df83cf..6a1463f3e 100644
--- a/app/components/admin/locales/show_component.html.erb
+++ b/app/components/admin/locales/show_component.html.erb
@@ -1,4 +1,4 @@
 <%= header %>
 <% provide :main_class, "admin-locales-show" %>
 
-<%= render Admin::Locales::FormComponent.new(locales, default: default) %>
+<%= render Admin::Locales::FormComponent.new(locales_settings) %>
diff --git a/app/components/admin/locales/show_component.rb b/app/components/admin/locales/show_component.rb
index 2625d049f..e33e66b51 100644
--- a/app/components/admin/locales/show_component.rb
+++ b/app/components/admin/locales/show_component.rb
@@ -1,10 +1,9 @@
 class Admin::Locales::ShowComponent < ApplicationComponent
   include Header
-  attr_reader :locales, :default
+  attr_reader :locales_settings
 
-  def initialize(locales, default:)
-    @locales = locales
-    @default = default
+  def initialize(locales_settings)
+    @locales_settings = locales_settings
   end
 
   def title
diff --git a/app/controllers/admin/locales_controller.rb b/app/controllers/admin/locales_controller.rb
index 5d0088393..df822a29b 100644
--- a/app/controllers/admin/locales_controller.rb
+++ b/app/controllers/admin/locales_controller.rb
@@ -1,15 +1,27 @@
 class Admin::LocalesController < Admin::BaseController
+  before_action :set_locales_settings
+  authorize_resource :locales_settings
+
   def show
-    @enabled_locales = Setting.enabled_locales
-    @default_locale = Setting.default_locale
   end
 
   def update
-    Setting.transaction do
-      Setting["locales.default"] = params["default_locale"]
-      Setting["locales.enabled"] = [params["default_locale"], *params["enabled_locales"]].join(" ")
-    end
+    @locales_settings.update!(locales_settings_params)
 
     redirect_to admin_locales_path, notice: t("admin.locales.update.notice")
   end
+
+  private
+
+    def locales_settings_params
+      params.require(:setting_locales_settings).permit(allowed_params)
+    end
+
+    def allowed_params
+      [:default, enabled: []]
+    end
+
+    def set_locales_settings
+      @locales_settings = Setting::LocalesSettings.new
+    end
 end
diff --git a/app/models/abilities/administrator.rb b/app/models/abilities/administrator.rb
index cd5e4d3f0..c6abe703c 100644
--- a/app/models/abilities/administrator.rb
+++ b/app/models/abilities/administrator.rb
@@ -134,6 +134,8 @@ module Abilities
       can [:deliver], Newsletter, hidden_at: nil
       can [:manage], Dashboard::AdministratorTask
 
+      can :manage, Setting::LocalesSettings
+
       can :manage, LocalCensusRecord
       can [:create, :read], LocalCensusRecords::Import
 
diff --git a/app/models/setting/locales_settings.rb b/app/models/setting/locales_settings.rb
new file mode 100644
index 000000000..26db131a9
--- /dev/null
+++ b/app/models/setting/locales_settings.rb
@@ -0,0 +1,23 @@
+class Setting
+  class LocalesSettings
+    include ActiveModel::Model
+    include ActiveModel::Attributes
+
+    attribute :enabled, array: true, default: -> { Setting.enabled_locales }
+    attribute :default, default: -> { Setting.default_locale }
+
+    def persisted?
+      true
+    end
+
+    def update(attributes)
+      assign_attributes(attributes)
+
+      Setting.transaction do
+        Setting["locales.default"] = default
+        Setting["locales.enabled"] = [default, *enabled].join(" ")
+      end
+    end
+    alias_method :update!, :update
+  end
+end
diff --git a/app/views/admin/locales/show.html.erb b/app/views/admin/locales/show.html.erb
index bb4561ded..994174d9f 100644
--- a/app/views/admin/locales/show.html.erb
+++ b/app/views/admin/locales/show.html.erb
@@ -1 +1 @@
-<%= render Admin::Locales::ShowComponent.new(@enabled_locales, default: @default_locale) %>
+<%= render Admin::Locales::ShowComponent.new(@locales_settings) %>
diff --git a/config/locales/en/activemodel.yml b/config/locales/en/activemodel.yml
index ea83bed5e..346b0e3d5 100644
--- a/config/locales/en/activemodel.yml
+++ b/config/locales/en/activemodel.yml
@@ -38,6 +38,9 @@ en:
         year_of_birth: "Year born"
       local_census_records/import:
         file: File
+      setting/locales_settings:
+        default: Default language
+        enabled: Enabled languages
     errors:
       models:
         local_census_records/import:
diff --git a/config/locales/en/admin.yml b/config/locales/en/admin.yml
index 736f767fe..3b70a864d 100644
--- a/config/locales/en/admin.yml
+++ b/config/locales/en/admin.yml
@@ -711,9 +711,7 @@ en:
         index:
           title: Following
     locales:
-      default: Default language
       default_help_text: "This is the default language of the application, and changing it will <strong>affect every user</strong> visiting the website for the first time."
-      enabled: Enabled languages
       enabled_help_text: The default language, selected above, will be included automatically.
       update:
         notice: Languages updated successfully
diff --git a/config/locales/es/activemodel.yml b/config/locales/es/activemodel.yml
index e303303d7..eaf66fc74 100644
--- a/config/locales/es/activemodel.yml
+++ b/config/locales/es/activemodel.yml
@@ -38,6 +38,9 @@ es:
         year_of_birth: "Año de nacimiento"
       local_census_records/import:
         file: Archivo
+      setting/locales_settings:
+        default: Idioma por defecto
+        enabled: Idiomas habilitados
     errors:
       models:
         local_census_records/import:
diff --git a/config/locales/es/admin.yml b/config/locales/es/admin.yml
index 7c90832be..513ae0306 100644
--- a/config/locales/es/admin.yml
+++ b/config/locales/es/admin.yml
@@ -711,9 +711,7 @@ es:
         index:
           title: Seguimiento
     locales:
-      default: Idioma por defecto
       default_help_text: "Cambiar el idioma por defecto <strong>afectará a todos los usuarios</strong> que visiten la página por primera vez."
-      enabled: Idiomas habilitados
       enabled_help_text: El idioma por defecto, seleccionado con anterioridad, se habilitará automáticamente.
       update:
         notice: Idiomas actualizados con éxito
diff --git a/spec/components/admin/locales/form_component_spec.rb b/spec/components/admin/locales/form_component_spec.rb
index 2cb7e4ace..ea2398f01 100644
--- a/spec/components/admin/locales/form_component_spec.rb
+++ b/spec/components/admin/locales/form_component_spec.rb
@@ -3,10 +3,8 @@ require "rails_helper"
 describe Admin::Locales::FormComponent do
   let(:default_locale) { :nl }
   let(:enabled_locales) { %i[en nl] }
-
-  let(:component) do
-    Admin::Locales::FormComponent.new(enabled_locales, default: default_locale)
-  end
+  let(:locales_settings) { Setting::LocalesSettings.new(default: default_locale, enabled: enabled_locales) }
+  let(:component) { Admin::Locales::FormComponent.new(locales_settings) }
 
   describe "default language selector" do
     before { allow(I18n).to receive(:available_locales).and_return(%i[de en es nl]) }
diff --git a/spec/models/setting/locales_settings_spec.rb b/spec/models/setting/locales_settings_spec.rb
new file mode 100644
index 000000000..1b21ec582
--- /dev/null
+++ b/spec/models/setting/locales_settings_spec.rb
@@ -0,0 +1,13 @@
+require "rails_helper"
+
+describe Setting::LocalesSettings do
+  describe "#update!" do
+    it "saves the default locale in the enabled ones when nothing is enabled" do
+      Setting::LocalesSettings.new.update!(default: "es", enabled: %w[])
+      updated_locales_settings = Setting::LocalesSettings.new
+
+      expect(updated_locales_settings.default).to eq :es
+      expect(updated_locales_settings.enabled).to match_array [:es]
+    end
+  end
+end