On Rotageek, we will help you to set up the locations for your company.
We offer different tiers that can be named based on what your company uses. For each tier, you can have as many units as you need.
Below is an example of a three tier location hierarchy.
Within the Country, you would have multiple districts. Within each district, you would then have further locations.
This is shown on the below screenshot. The country is United Kingdom, within this there are districts (1 and 2) and within the district there are locations.