The Hidden Storage Drain
macOS includes a native Maps application that is deeply integrated into the operating system. To ensure fast rendering and offline availability, Apple recently introduced a feature where macOS automatically downloads and updates offline maps for your current region or areas you frequently search for. While helpful if you travel with your MacBook without internet, this automated downloading can consume several gigabytes of precious SSD storage space in the background. If you are using a base-model Mac with limited storage and primarily use Google Maps in a browser anyway, this silent data hoarding is highly undesirable.
Reclaiming Your SSD
To prevent this unnecessary data consumption and stop macOS from automatically downloading offline maps in the background, you must adjust the specific settings within the Maps application itself.
Open the Maps application on your Mac (you can find it in the Applications folder or via Spotlight search). Once the app is open and active, look at the very top Menu Bar on your screen. Click on Maps and select Settings… (or Preferences on older macOS versions). A settings dialogue box will appear. Click on the Offline Maps tab at the top of this box. Look for the section labelled “Automatic Updates.” You will see a toggle switch explicitly labelled Automatically update offline maps. Click this toggle to turn it Off. For maximum storage savings, you should also click the toggle for Optimize Storage to turn it Off, which prevents the system from preemptively downloading data it thinks you might need.