diff --git a/app/models/municipality.rb b/app/models/municipality.rb
new file mode 100644
index 0000000..0fc63dc
--- /dev/null
+++ b/app/models/municipality.rb
@@ -0,0 +1,5 @@
+# frozen_string_literal: true
+
+class Municipality < ApplicationRecord
+  has_many :municipality_areas, dependent: :destroy
+end
diff --git a/app/models/municipality_area.rb b/app/models/municipality_area.rb
new file mode 100644
index 0000000..c2c5b3b
--- /dev/null
+++ b/app/models/municipality_area.rb
@@ -0,0 +1,5 @@
+# frozen_string_literal: true
+
+class MunicipalityArea < ApplicationRecord
+  belongs_to :municipality
+end
diff --git a/db/migrate/20230214152809_create_municipalities.rb b/db/migrate/20230214152809_create_municipalities.rb
new file mode 100644
index 0000000..55c5cb7
--- /dev/null
+++ b/db/migrate/20230214152809_create_municipalities.rb
@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+class CreateMunicipalities < ActiveRecord::Migration[7.0]
+  def change
+    create_table :municipalities do |t|
+      t.string :name, null: false
+    end
+  end
+end
diff --git a/db/migrate/20230214160225_create_municipality_areas.rb b/db/migrate/20230214160225_create_municipality_areas.rb
new file mode 100644
index 0000000..b0f367d
--- /dev/null
+++ b/db/migrate/20230214160225_create_municipality_areas.rb
@@ -0,0 +1,10 @@
+# frozen_string_literal: true
+
+class CreateMunicipalityAreas < ActiveRecord::Migration[7.0]
+  def change
+    create_table :municipality_areas do |t|
+      t.references :municipality, null: false, foreign_key: true
+      t.st_polygon :area, null: false, srid: 3857, index: { using: :gist }
+    end
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index f2677b8..7d5b38b 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,9 +10,21 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.0].define(version: 2023_02_14_134011) do
+ActiveRecord::Schema[7.0].define(version: 2023_02_14_160225) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "plpgsql"
   enable_extension "postgis"
 
+  create_table "municipalities", force: :cascade do |t|
+    t.string "name", null: false
+  end
+
+  create_table "municipality_areas", force: :cascade do |t|
+    t.bigint "municipality_id", null: false
+    t.geometry "area", limit: {:srid=>3857, :type=>"st_polygon"}, null: false
+    t.index ["area"], name: "index_municipality_areas_on_area", using: :gist
+    t.index ["municipality_id"], name: "index_municipality_areas_on_municipality_id"
+  end
+
+  add_foreign_key "municipality_areas", "municipalities"
 end