diff --git a/app/components/admin/stats/budget_balloting_component.rb b/app/components/admin/stats/budget_balloting_component.rb
index 9b9065c44..12addf185 100644
--- a/app/components/admin/stats/budget_balloting_component.rb
+++ b/app/components/admin/stats/budget_balloting_component.rb
@@ -8,7 +8,7 @@ class Admin::Stats::BudgetBallotingComponent < ApplicationComponent
   private
 
     def stats
-      @stats ||= Budget::Stats.new(budget)
+      @stats ||= Budget::Stats.new(budget, cache: false)
     end
 
     def headings_stats
diff --git a/app/components/admin/stats/budget_supporting_component.rb b/app/components/admin/stats/budget_supporting_component.rb
index 5d7b9cea2..0fdeb7b20 100644
--- a/app/components/admin/stats/budget_supporting_component.rb
+++ b/app/components/admin/stats/budget_supporting_component.rb
@@ -8,7 +8,7 @@ class Admin::Stats::BudgetSupportingComponent < ApplicationComponent
   private
 
     def stats
-      @stats ||= Budget::Stats.new(budget)
+      @stats ||= Budget::Stats.new(budget, cache: false)
     end
 
     def headings_stats
diff --git a/app/controllers/budgets/stats_controller.rb b/app/controllers/budgets/stats_controller.rb
index 33480238d..353ff113b 100644
--- a/app/controllers/budgets/stats_controller.rb
+++ b/app/controllers/budgets/stats_controller.rb
@@ -8,7 +8,7 @@ module Budgets
 
     def show
       authorize! :read_stats, @budget
-      @stats = Budget::Stats.new(@budget)
+      @stats = Budget::Stats.new(@budget).tap(&:generate)
       @headings = @budget.headings.sort_by_name
     end
 
diff --git a/app/controllers/polls_controller.rb b/app/controllers/polls_controller.rb
index ecb8ffadb..80b72309b 100644
--- a/app/controllers/polls_controller.rb
+++ b/app/controllers/polls_controller.rb
@@ -23,7 +23,7 @@ class PollsController < ApplicationController
   end
 
   def stats
-    @stats = Poll::Stats.new(@poll)
+    @stats = Poll::Stats.new(@poll).tap(&:generate)
   end
 
   def results
diff --git a/app/lib/geozone_stats.rb b/app/lib/geozone_stats.rb
deleted file mode 100644
index 6b7971610..000000000
--- a/app/lib/geozone_stats.rb
+++ /dev/null
@@ -1,24 +0,0 @@
-class GeozoneStats
-  attr_reader :geozone, :participants
-
-  def initialize(geozone, participants)
-    @geozone = geozone
-    @participants = participants
-  end
-
-  def geozone_participants
-    participants.where(geozone: geozone)
-  end
-
-  def name
-    geozone.name
-  end
-
-  def count
-    geozone_participants.count
-  end
-
-  def percentage
-    PercentageCalculator.calculate(count, participants.count)
-  end
-end
diff --git a/app/lib/percentage_calculator.rb b/app/lib/percentage_calculator.rb
deleted file mode 100644
index bb8f3d355..000000000
--- a/app/lib/percentage_calculator.rb
+++ /dev/null
@@ -1,7 +0,0 @@
-module PercentageCalculator
-  def self.calculate(fraction, total)
-    return 0.0 if total.zero?
-
-    (fraction * 100.0 / total).round(3)
-  end
-end
diff --git a/app/models/budget.rb b/app/models/budget.rb
index 4fc250bf4..319f02d4b 100644
--- a/app/models/budget.rb
+++ b/app/models/budget.rb
@@ -1,7 +1,6 @@
 class Budget < ApplicationRecord
   include Measurable
   include Sluggable
-  include StatsVersionable
   include Reportable
   include Imageable
 
diff --git a/app/models/budget/stats.rb b/app/models/budget/stats.rb
index 4d62cd6de..d03e4edd3 100644
--- a/app/models/budget/stats.rb
+++ b/app/models/budget/stats.rb
@@ -192,7 +192,7 @@ class Budget::Stats
 
     stats_cache(*stats_methods)
 
-    def stats_cache(key, &)
-      Rails.cache.fetch("budgets_stats/#{budget.id}/#{phases.join}/#{key}/#{version}", &)
+    def full_cache_key_for(key)
+      "budgets_stats/#{budget.id}/#{phases.join}/#{key}"
     end
 end
diff --git a/app/models/concerns/statisticable.rb b/app/models/concerns/statisticable.rb
index 53533b4ed..f8b13766a 100644
--- a/app/models/concerns/statisticable.rb
+++ b/app/models/concerns/statisticable.rb
@@ -3,7 +3,7 @@ module Statisticable
   PARTICIPATIONS = %w[gender age geozone].freeze
 
   included do
-    attr_reader :resource
+    attr_reader :resource, :cache
   end
 
   class_methods do
@@ -42,12 +42,28 @@ module Statisticable
     end
   end
 
-  def initialize(resource)
+  def initialize(resource, cache: true)
     @resource = resource
+    @cache = cache
   end
 
   def generate
-    stats_methods.each { |stat_name| send(stat_name) }
+    User.transaction do
+      begin
+        define_singleton_method :participants do
+          create_participants_table unless participants_table_created?
+          participants_class.all
+        end
+
+        stats_methods.each { |stat_name| send(stat_name) }
+      ensure
+        define_singleton_method :participants do
+          participants_from_original_table
+        end
+      end
+
+      drop_participants_table
+    end
   end
 
   def stats_methods
@@ -77,6 +93,7 @@ module Statisticable
   def participants
     @participants ||= User.unscoped.where(id: participant_ids)
   end
+  alias_method :participants_from_original_table, :participants
 
   def total_male_participants
     participants.male.count
@@ -114,23 +131,23 @@ module Statisticable
   end
 
   def participants_by_geozone
-    geozone_stats.to_h do |stats|
+    geozones.to_h do |geozone|
+      count = participants.where(geozone: geozone).count
+
       [
-        stats.name,
+        geozone.name,
         {
-          count: stats.count,
-          percentage: stats.percentage
+          count: count,
+          percentage: calculate_percentage(count, total_participants)
         }
       ]
     end
   end
 
   def calculate_percentage(fraction, total)
-    PercentageCalculator.calculate(fraction, total)
-  end
+    return 0.0 if total.zero?
 
-  def version
-    "v#{resource.find_or_create_stats_version.updated_at.to_i}"
+    (fraction * 100.0 / total).round(3)
   end
 
   def advanced?
@@ -147,6 +164,34 @@ module Statisticable
       participations.map { |participation| self.class.send("#{participation}_methods") }.flatten
     end
 
+    def create_participants_table
+      User.connection.create_table(
+        participants_table_name,
+        temporary: true,
+        as: participants_from_original_table.to_sql
+      )
+      User.connection.add_index participants_table_name, :date_of_birth
+      User.connection.add_index participants_table_name, :geozone_id
+      @participants_table_created = true
+    end
+
+    def drop_participants_table
+      User.connection.drop_table(participants_table_name, if_exists: true, temporary: true)
+      @participants_table_created = false
+    end
+
+    def participants_table_name
+      @participants_table_name ||= "participants_#{resource.class.table_name}_#{resource.id}"
+    end
+
+    def participants_class
+      @participants_class ||= Class.new(User).tap { |klass| klass.table_name = participants_table_name }
+    end
+
+    def participants_table_created?
+      @participants_table_created.present?
+    end
+
     def total_participants_with_gender
       @total_participants_with_gender ||= participants.where.not(gender: nil).distinct.count
     end
@@ -170,18 +215,10 @@ module Statisticable
        [90, 300]]
     end
 
-    def participants_between_ages(from, to)
-      participants.between_ages(from, to)
-    end
-
     def geozones
       Geozone.order("name")
     end
 
-    def geozone_stats
-      geozones.map { |geozone| GeozoneStats.new(geozone, participants) }
-    end
-
     def range_description(start, finish)
       if finish > 200
         I18n.t("stats.age_more_than", start: start)
@@ -189,4 +226,12 @@ module Statisticable
         I18n.t("stats.age_range", start: start, finish: finish)
       end
     end
+
+    def stats_cache(key, &block)
+      if cache
+        Rails.cache.fetch(full_cache_key_for(key), expires_at: Date.current.end_of_day, &block)
+      else
+        block.call
+      end
+    end
 end
diff --git a/app/models/concerns/stats_versionable.rb b/app/models/concerns/stats_versionable.rb
deleted file mode 100644
index 9e9138ecc..000000000
--- a/app/models/concerns/stats_versionable.rb
+++ /dev/null
@@ -1,11 +0,0 @@
-module StatsVersionable
-  extend ActiveSupport::Concern
-
-  included do
-    has_one :stats_version, as: :process, inverse_of: :process
-  end
-
-  def find_or_create_stats_version
-    stats_version || create_stats_version
-  end
-end
diff --git a/app/models/poll.rb b/app/models/poll.rb
index 3d587b59f..4021fcf1c 100644
--- a/app/models/poll.rb
+++ b/app/models/poll.rb
@@ -7,7 +7,6 @@ class Poll < ApplicationRecord
   include Notifiable
   include Searchable
   include Sluggable
-  include StatsVersionable
   include Reportable
   include SDG::Relatable
 
diff --git a/app/models/poll/stats.rb b/app/models/poll/stats.rb
index c449bf17d..8a0b1562b 100644
--- a/app/models/poll/stats.rb
+++ b/app/models/poll/stats.rb
@@ -121,7 +121,7 @@ class Poll::Stats
 
     stats_cache(*stats_methods)
 
-    def stats_cache(key, &)
-      Rails.cache.fetch("polls_stats/#{poll.id}/#{key}/#{version}", &)
+    def full_cache_key_for(key)
+      "polls_stats/#{poll.id}/#{key}"
     end
 end
diff --git a/app/models/stats_version.rb b/app/models/stats_version.rb
deleted file mode 100644
index f47ddea44..000000000
--- a/app/models/stats_version.rb
+++ /dev/null
@@ -1,5 +0,0 @@
-class StatsVersion < ApplicationRecord
-  validates :process, presence: true
-
-  belongs_to :process, polymorphic: true
-end
diff --git a/config/schedule.rb b/config/schedule.rb
index b0755dbaf..fcfd626e3 100644
--- a/config/schedule.rb
+++ b/config/schedule.rb
@@ -27,10 +27,6 @@ every 1.day, at: "5:00 am" do
   rake "-s sitemap:refresh:no_ping"
 end
 
-every 2.hours do
-  rake "-s stats:generate"
-end
-
 every 1.day, at: "1:00 am", roles: [:cron] do
   rake "files:remove_old_cached_attachments"
 end
diff --git a/db/migrate/20240408154814_drop_stats_versions.rb b/db/migrate/20240408154814_drop_stats_versions.rb
new file mode 100644
index 000000000..a88c1d879
--- /dev/null
+++ b/db/migrate/20240408154814_drop_stats_versions.rb
@@ -0,0 +1,12 @@
+class DropStatsVersions < ActiveRecord::Migration[7.0]
+  def change
+    drop_table :stats_versions, id: :serial do |t|
+      t.string :process_type
+      t.integer :process_id
+      t.datetime :created_at, precision: nil, null: false
+      t.datetime :updated_at, precision: nil, null: false
+
+      t.index ["process_type", "process_id"], name: "index_stats_versions_on_process_type_and_process_id"
+    end
+  end
+end
diff --git a/db/schema.rb b/db/schema.rb
index 0b5dfa0d5..d330136cc 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -1515,14 +1515,6 @@ ActiveRecord::Schema[7.0].define(version: 2024_04_24_013913) do
     t.string "locale"
   end
 
-  create_table "stats_versions", id: :serial, force: :cascade do |t|
-    t.string "process_type"
-    t.integer "process_id"
-    t.datetime "created_at", precision: nil, null: false
-    t.datetime "updated_at", precision: nil, null: false
-    t.index ["process_type", "process_id"], name: "index_stats_versions_on_process_type_and_process_id"
-  end
-
   create_table "taggings", id: :serial, force: :cascade do |t|
     t.integer "tag_id"
     t.string "taggable_type"
diff --git a/lib/tasks/stats.rake b/lib/tasks/stats.rake
deleted file mode 100644
index b7d397301..000000000
--- a/lib/tasks/stats.rake
+++ /dev/null
@@ -1,32 +0,0 @@
-namespace :stats do
-  desc "Generates stats which are not cached yet"
-  task generate: :environment do
-    ApplicationLogger.new.info "Updating budget and poll stats"
-
-    Tenant.run_on_each do
-      admin_ability = Ability.new(Administrator.first.user)
-
-      Budget.accessible_by(admin_ability, :read_stats).find_each do |budget|
-        Budget::Stats.new(budget).generate
-        print "."
-      end
-
-      Poll.accessible_by(admin_ability, :stats).find_each do |poll|
-        Poll::Stats.new(poll).generate
-        print "."
-      end
-    end
-  end
-
-  desc "Expires stats cache"
-  task expire_cache: :environment do
-    Tenant.run_on_each do
-      [Budget, Poll].each do |model_class|
-        model_class.find_each { |record| record.find_or_create_stats_version.touch }
-      end
-    end
-  end
-
-  desc "Deletes stats cache and generates it again"
-  task regenerate: [:expire_cache, :generate]
-end
diff --git a/spec/lib/geozone_stats_spec.rb b/spec/lib/geozone_stats_spec.rb
deleted file mode 100644
index 570315406..000000000
--- a/spec/lib/geozone_stats_spec.rb
+++ /dev/null
@@ -1,44 +0,0 @@
-require "rails_helper"
-
-describe GeozoneStats do
-  let(:winterfell) { create(:geozone, name: "Winterfell") }
-  let(:riverlands) { create(:geozone, name: "Riverlands") }
-
-  describe "#name" do
-    let(:stats) { GeozoneStats.new(winterfell, []) }
-
-    it "returns the geozone name" do
-      expect(stats.name).to eq "Winterfell"
-    end
-  end
-
-  describe "#count" do
-    before do
-      2.times { create(:user, geozone: winterfell) }
-      1.times { create(:user, geozone: riverlands) }
-    end
-
-    let(:winterfell_stats) { GeozoneStats.new(winterfell, User.all) }
-    let(:riverlands_stats) { GeozoneStats.new(riverlands, User.all) }
-
-    it "counts participants from the geozone" do
-      expect(winterfell_stats.count).to eq 2
-      expect(riverlands_stats.count).to eq 1
-    end
-  end
-
-  describe "#percentage" do
-    before do
-      2.times { create(:user, geozone: winterfell) }
-      1.times { create(:user, geozone: riverlands) }
-    end
-
-    let(:winterfell_stats) { GeozoneStats.new(winterfell, User.all) }
-    let(:riverlands_stats) { GeozoneStats.new(riverlands, User.all) }
-
-    it "calculates percentage relative to the amount of participants" do
-      expect(winterfell_stats.percentage).to eq 66.667
-      expect(riverlands_stats.percentage).to eq 33.333
-    end
-  end
-end
diff --git a/spec/models/poll/stats_spec.rb b/spec/models/poll/stats_spec.rb
index ddb95a361..9bf5f56c2 100644
--- a/spec/models/poll/stats_spec.rb
+++ b/spec/models/poll/stats_spec.rb
@@ -299,32 +299,4 @@ describe Poll::Stats do
       end
     end
   end
-
-  describe "#version", :with_frozen_time do
-    context "record with no stats" do
-      it "returns a string based on the current time" do
-        expect(stats.version).to eq "v#{Time.current.to_i}"
-      end
-
-      it "doesn't overwrite the timestamp when called multiple times" do
-        time = Time.current
-
-        expect(stats.version).to eq "v#{time.to_i}"
-
-        unfreeze_time
-
-        travel_to 2.seconds.from_now do
-          expect(stats.version).to eq "v#{time.to_i}"
-        end
-      end
-    end
-
-    context "record with stats" do
-      before { poll.create_stats_version(updated_at: 1.day.ago) }
-
-      it "returns the version of the existing stats" do
-        expect(stats.version).to eq "v#{1.day.ago.to_i}"
-      end
-    end
-  end
 end
diff --git a/spec/models/statisticable_spec.rb b/spec/models/statisticable_spec.rb
index 9768b39ee..fa3301610 100644
--- a/spec/models/statisticable_spec.rb
+++ b/spec/models/statisticable_spec.rb
@@ -4,10 +4,21 @@ describe Statisticable do
   before do
     dummy_stats = Class.new do
       include Statisticable
+      attr_accessor :total
+      stats_cache :total
+
+      def full_cache_key_for(key)
+        "dummy_stats/#{object_id}/#{key}"
+      end
 
       def participants
         User.all
       end
+      alias_method :participants_from_original_table, :participants
+
+      def total_participants
+        User.count
+      end
 
       def participation_date
         Time.current
@@ -17,7 +28,8 @@ describe Statisticable do
     stub_const("DummyStats", dummy_stats)
   end
 
-  let(:stats) { DummyStats.new(nil) }
+  let(:resource) { double(id: 1, class: double(table_name: "")) }
+  let(:stats) { DummyStats.new(resource) }
 
   describe "#gender?" do
     context "No participants" do
@@ -194,4 +206,65 @@ describe Statisticable do
       end
     end
   end
+
+  describe "#generate" do
+    it "drops the temporary table after finishing" do
+      stats.generate
+
+      expect { stats.send(:participants_class).first }.to raise_exception(ActiveRecord::StatementInvalid)
+    end
+
+    it "can be executed twice without errors" do
+      stats.generate
+
+      expect { stats.generate }.not_to raise_exception
+    end
+
+    it "can be executed twice in parallel since it uses a transaction" do
+      other_stats = DummyStats.new(stats.resource)
+
+      [stats, other_stats].map do |stat|
+        Thread.new { stat.generate }
+      end.each(&:join)
+    end
+  end
+
+  describe "cache", :with_cache do
+    it "expires the cache at the end of the day by default" do
+      time = Time.current
+
+      travel_to(time) do
+        stats.total = 6
+
+        expect(stats.total).to eq 6
+
+        stats.total = 7
+
+        expect(stats.total).to eq 6
+      end
+
+      travel_to(time.end_of_day) do
+        expect(stats.total).to eq 6
+      end
+
+      travel_to(time.end_of_day + 1.second) do
+        expect(stats.total).to eq 7
+      end
+    end
+
+    it "does not use the cache with cache: false" do
+      stats = DummyStats.new(resource, cache: false)
+      time = Time.current
+
+      travel_to(time) do
+        stats.total = 6
+
+        expect(stats.total).to eq 6
+
+        stats.total = 7
+
+        expect(stats.total).to eq 7
+      end
+    end
+  end
 end
diff --git a/spec/models/stats_version_spec.rb b/spec/models/stats_version_spec.rb
deleted file mode 100644
index eb875ed09..000000000
--- a/spec/models/stats_version_spec.rb
+++ /dev/null
@@ -1,13 +0,0 @@
-require "rails_helper"
-
-describe StatsVersion do
-  describe "validations" do
-    it "is valid with a process" do
-      expect(StatsVersion.new(process: Budget.new)).to be_valid
-    end
-
-    it "is not valid without a process" do
-      expect(StatsVersion.new(process: nil)).not_to be_valid
-    end
-  end
-end
diff --git a/spec/spec_helper.rb b/spec/spec_helper.rb
index a82d425e6..15c49772e 100644
--- a/spec/spec_helper.rb
+++ b/spec/spec_helper.rb
@@ -193,6 +193,11 @@ RSpec.configure do |config|
     savon.unmock!
   end
 
+  config.before(:each, :with_cache) do
+    allow(Rails).to receive(:cache).and_return(ActiveSupport::Cache.lookup_store(:memory_store))
+    Rails.cache.clear
+  end
+
   # Allows RSpec to persist some state between runs in order to support
   # the `--only-failures` and `--next-failure` CLI options.
   config.example_status_persistence_file_path = "spec/examples.txt"
diff --git a/spec/system/admin/stats_spec.rb b/spec/system/admin/stats_spec.rb
index 88c77cf2d..2ea281266 100644
--- a/spec/system/admin/stats_spec.rb
+++ b/spec/system/admin/stats_spec.rb
@@ -99,6 +99,33 @@ describe "Stats", :admin do
         expect(page).to have_link "Go back", count: 1
       end
 
+      scenario "Don't use the cache for supports", :with_cache do
+        budget.update!(phase: :selecting)
+        investment = create(:budget_investment, heading: heading_all_city)
+        create(:user, :level_two, votables: [investment])
+
+        supporter = create(:user, :level_two)
+
+        visit budget_supporting_admin_stats_path(budget_id: budget)
+
+        expect(page).to have_content "VOTES\n1"
+        expect(page).to have_content "PARTICIPANTS\n1"
+
+        in_browser(:supporter) do
+          login_as(supporter)
+
+          visit budget_investment_path(budget, investment)
+          click_button "Support"
+
+          expect(page).to have_button "Remove your support"
+        end
+
+        refresh
+
+        expect(page).to have_content "VOTES\n2"
+        expect(page).to have_content "PARTICIPANTS\n2"
+      end
+
       scenario "hide final voting link" do
         visit admin_stats_path
         click_link "Participatory Budgets"
@@ -135,6 +162,32 @@ describe "Stats", :admin do
         expect(page).to have_content "VOTES\n3"
         expect(page).to have_content "PARTICIPANTS\n2"
       end
+
+      scenario "Don't use the cache for votes", :with_cache do
+        budget.update!(phase: :balloting)
+        create(:user, ballot_lines: [investment])
+
+        balloter = create(:user, :level_two)
+
+        visit budget_balloting_admin_stats_path(budget_id: budget.id)
+
+        expect(page).to have_content "VOTES\n1"
+        expect(page).to have_content "PARTICIPANTS\n1"
+
+        in_browser(:balloter) do
+          login_as(balloter)
+
+          visit budget_investment_path(budget, investment)
+          click_button "Vote"
+
+          expect(page).to have_button "Remove vote"
+        end
+
+        refresh
+
+        expect(page).to have_content "VOTES\n2"
+        expect(page).to have_content "PARTICIPANTS\n2"
+      end
     end
   end