About post offices, 1 possibilities exist (like "СДЭК").
The area offers 3 spots in the "gas stations" category.
These are the principal cities: Сунжа, Троицкая, Троицкое Сельское Поселение.
For schools you have 2 locations.
Are you looking for an apartment for sale/rent? Or interested by a house? You can check that on Циан.