diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index b8ed7a69236..371a9828d81 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -187,7 +187,7 @@ specs:
     POSTGRES_HOST_AUTH_METHOD: trust
     RAILS_ENV: test
   services:
-    - name: postgis/postgis:13-3.3
+    - name: postgres:13.9
       alias: db-postgres
       command: ['--fsync=false', '--synchronous_commit=false', '--full_page_writes=false']
     - name: redis:7.0
diff --git a/Brewfile b/Brewfile
index 0ebe762e20f..2018d5ff118 100644
--- a/Brewfile
+++ b/Brewfile
@@ -1,5 +1,4 @@
 brew 'postgresql@14'
-brew 'postgis'
 brew 'redis'
 brew 'node@20'
 brew 'yarn'
diff --git a/Gemfile b/Gemfile
index 291ab73a93b..c231053e3a1 100644
--- a/Gemfile
+++ b/Gemfile
@@ -5,7 +5,6 @@ ruby "~> #{File.read(File.join(__dir__, '.ruby-version')).strip}"
 
 gem 'rails', '~> 7.1.3'
 
-gem 'activerecord-postgis-adapter', '~> 9.0'
 gem 'ahoy_matey', '~> 3.0'
 gem 'aws-sdk-kms', '~> 1.4'
 gem 'aws-sdk-cloudwatchlogs', require: false
diff --git a/Gemfile.lock b/Gemfile.lock
index 89c453cc548..07ecff1b76e 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -136,9 +136,6 @@ GEM
       activemodel (= 7.1.3.2)
       activesupport (= 7.1.3.2)
       timeout (>= 0.4.0)
-    activerecord-postgis-adapter (9.0.1)
-      activerecord (~> 7.1.0)
-      rgeo-activerecord (~> 7.0.0)
     activestorage (7.1.3.2)
       actionpack (= 7.1.3.2)
       activejob (= 7.1.3.2)
@@ -576,10 +573,6 @@ GEM
       railties (>= 5.0)
     retries (0.0.5)
     rexml (3.2.6)
-    rgeo (3.0.0)
-    rgeo-activerecord (7.0.1)
-      activerecord (>= 5.0)
-      rgeo (>= 1.0.0)
     rotp (6.3.0)
     rouge (4.2.0)
     rqrcode (2.1.0)
@@ -749,7 +742,6 @@ PLATFORMS
   ruby
 
 DEPENDENCIES
-  activerecord-postgis-adapter (~> 9.0)
   ahoy_matey (~> 3.0)
   aws-sdk-cloudwatchlogs
   aws-sdk-kms (~> 1.4)
diff --git a/config/database.yml b/config/database.yml
index a6b5a6a2a4c..0b623f08000 100644
--- a/config/database.yml
+++ b/config/database.yml
@@ -24,11 +24,11 @@ defaults: &defaults
 development:
   primary:
     <<: *defaults
-    adapter: postgis
+    adapter: postgresql
     migrations_paths: db/primary_migrate
   read_replica:
     <<: *defaults
-    adapter: postgis
+    adapter: postgresql
     replica: true
   worker_jobs:
     <<: *defaults
@@ -38,7 +38,7 @@ development:
 test:
   primary: &test
     <<: *defaults
-    adapter: postgis
+    adapter: postgresql
     pool: 10
     checkout_timeout: 10
     database: <%= ENV['POSTGRES_DB'] || "identity_idp_test#{ENV['TEST_ENV_NUMBER']}" %>
@@ -47,7 +47,7 @@ test:
     migrations_paths: db/primary_migrate
   read_replica:
     <<: *test
-    adapter: postgis
+    adapter: postgresql
     replica: true
   worker_jobs:
     <<: *test
@@ -80,7 +80,7 @@ test:
 production:
   primary:
     <<: *defaults
-    adapter: postgis
+    adapter: postgresql
     database: <%= IdentityConfig.store.database_name %>
     username: <%= IdentityConfig.store.database_username %>
     host: <%= IdentityConfig.store.database_socket.present? ?  IdentityConfig.store.database_socket : IdentityConfig.store.database_host %>
@@ -93,7 +93,7 @@ production:
     migrations_paths: db/primary_migrate
   read_replica:
     <<: *defaults
-    adapter: postgis
+    adapter: postgresql
     database: <%= IdentityConfig.store.database_name %>
     username: <%= IdentityConfig.store.database_readonly_username %>
     host: <%= IdentityConfig.store.database_read_replica_host %>
diff --git a/db/primary_migrate/20230518221444_add_postgis_extension_to_database.rb b/db/primary_migrate/20230518221444_add_postgis_extension_to_database.rb
index 3e8476ebf8d..c772c4060ac 100644
--- a/db/primary_migrate/20230518221444_add_postgis_extension_to_database.rb
+++ b/db/primary_migrate/20230518221444_add_postgis_extension_to_database.rb
@@ -1,5 +1,8 @@
 class AddPostgisExtensionToDatabase < ActiveRecord::Migration[7.0]
   def change
-    enable_extension 'postgis'
+    # In the time since we added this extension, we have removed it and
+    # also removed the postgis-compatible images from our CI pipeline,
+    # so running this old migration fails
+    # enable_extension 'postgis'
   end
 end
diff --git a/db/schema.rb b/db/schema.rb
index 1af808446ec..ca81df3b182 100644
--- a/db/schema.rb
+++ b/db/schema.rb
@@ -10,13 +10,12 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.1].define(version: 2024_04_04_154024) do
+ActiveRecord::Schema[7.1].define(version: 2024_04_11_163520) do
   # These are extensions that must be enabled in order to support this database
   enable_extension "citext"
   enable_extension "pg_stat_statements"
   enable_extension "pgcrypto"
   enable_extension "plpgsql"
-  enable_extension "postgis"
 
   create_table "account_reset_requests", force: :cascade do |t|
     t.integer "user_id", null: false
diff --git a/docs/local-development.md b/docs/local-development.md
index 344db74541b..dd45752c211 100644
--- a/docs/local-development.md
+++ b/docs/local-development.md
@@ -23,8 +23,6 @@ If not using macOS:
     - [rbenv](https://github.com/rbenv/rbenv) (lets you install and switch between different versions of Ruby)
     - Ruby. Choose the version [in the `.ruby-version` file](../.ruby-version)
     - [PostgreSQL](http://www.postgresql.org/download/)
-    - [PostGIS](https://postgis.net/documentation/getting_started/#installing-postgis)
-        - Note: if you run into errors installing `postgis` or creating the database, check [the troubleshooting docs](./troubleshooting.md#errors-related-to-the-databse).
     - [Redis 7+](http://redis.io/)
     - [Node.js v20](https://nodejs.org)
     - [Yarn](https://yarnpkg.com/en/)
diff --git a/docs/troubleshooting.md b/docs/troubleshooting.md
index f7b42a19317..0867ca17ede 100644
--- a/docs/troubleshooting.md
+++ b/docs/troubleshooting.md
@@ -8,30 +8,6 @@ $ bundle install
 $ yarn install
 ```
 
-### Errors related to the database
-
-One error you might see is:
-
-```
-Caused by:
-ActiveRecord::StatementInvalid: PG::FeatureNotSupported: ERROR:  extension "postgis" is not available
-DETAIL:  Could not open extension control file "/opt/homebrew/opt/postgresql@15/share/postgresql@15/extension/postgis.control": No such file or directory.
-HINT:  The extension must first be installed on the system where PostgreSQL is running.
-```
-
-If you see the above message:
-
-- double check that `postgis` is installed with `brew list`
-- if `postgis` is listed, it means when you brew installed you might have installed `postgis` in a different postgresql db than the app is using
-    - in this case, look at `brew list` again, and remove any `postgres` db that is not listed in [the Brewfile](../Brewfile) (`brew uninstall __`)
-        - if you try to run the migration now you might get a:
-            ```
-            connection to server at "::1", port 5432 failed: Connection refused
-            Is the server running on that host and accepting TCP/IP connections?
-            ```
-        - this likely means postgres is no longer running
-        - try `brew services start postgresql@14` (or your version) and then re-run the migration
-
 ## I am receiving errors when creating the development and test databases
 
 If you receive the following error (where _whoami_ == _your username_):