How does Yandex react to duplicate content by region?

Question

Search Engine Optimization

Good day!
There is a site on the topic “Delivery of non-metallic materials” (Sand, crushed stone, earth, etc.)
We want to move in St. Petersburg and the Leningrad Region
Since the Leningrad Region itself is large, we thought about dividing it into districts and large settlements and respectively, the creation of separate pages for each of them .
We got a rather impressive figure
Immediately the question arose about the content
Question:
If there is unique content, but at the same time copying it to districts and individual settlements (that is, there will be 4-5 variables on the pages, the rest is the same ) can there be any positive performance?
Site without subdomains, we are talking about the pages of the main and only domain

Answer 1

If the content itself is the same, how will the search engine solve the issue of prioritizing the keys for the page?
The content must be unique for each page, there is nothing difficult in writing one basic landing article, and then rewriting it with the inclusion of a mask with the name of the region.
At the same time, you should definitely collect hints for the region, which would include various spelling variations, for example, you can use not only HF keys that include the exact occurrence of the region, but also include the name of some areas of the city itself in the text to reduce nausea and increase coverage.
Andrew, are you by any chance?

Answer 2

Since, in itself, Len. The region is large, we thought about dividing it into districts and large settlements and, accordingly, creating separate pages for each of them

this is obviously spam