I'm will making a website for advertising services in the property sector using wordpress and woocommerce.

I created categories consisting of provinces, cities and sub-districts that number more than 70,000 (In my country).

However, the products that will be displayed will only be cities and sub-districts. (Please don't misunderstand the number 70,000)

I know, when I started maybe just 1 or 2 categories (regions).

However I'm worried if as the number of categories keeps growing, it make a matter.

I have to think about how I am responsible to customers considering the business I have

Please advise before I go too far.

thank you (Sorry if my english is bad)

note : Hopefully the illustration below can give you a hint of what I want.

• Provinces A
  • Cities A1
  • Cities A2
    • Subdistrict X1
    • Subdistrict X2
    • Subdistrict X3 - 900
• Provinces B
  • Cities B1
  • Cities B2
    • Subdistrict Y1
    • Subdistrict Y2
    • Subdistrict Y3 - 400
• Provinces C -...Z

Totally Subdistrict from Provinces A to Z over 70,000

Example on front end :

• Product A (Title, Image, Description, etc)
  • Category : Sub-district X2, Cities A2

• Product B (Title, Image, Description, etc)
  • Category : Sub-district Y2, Cities B2

Currently all is well. But i doubt input this data (region) must on categories or attributes. I'm worried that in the future there will be about limitation / ability to accommodate data considering the amount is not small and it a becomes problem. Can you give me advise?

Display on shop page Display on additional information (Location)