When did Southwest Afghanistan become Pashtun?

[Sarbani]

By SW Afghanistan; I'm referring to the provinces of Nimruz, Farah, and Herat.

I know there's a significant population of Persians/Tajiks there and they may even be the majority/plurality in some of those provinces as a whole, but I'm only referring to the Pashtun majority parts of those provinces. Were they historically considered part of Pashtunkhwa? How long has it been since Pashtuns settled in those regions. I'm just curious to know how old the presence of Pashtuns is in those three provinces.

[maneatinglizard]

Herat is not southwestern, it's just western, and Nimruz is majority Baloch. If you look at the demographics at a provincial level (granted they are estimates for the most part), most of the Pashtuns in Nimruz and Farah are near the Pashtun-majority provinces they border. Afghanistan often moves the borders of provinces around (for example, Nuristan now contains land that is Pashtun and Tajik majority), so those areas may actually have been parts of Loy Kandahar. Even if that's not the case, it looks like a general trend of moving outwards from traditional Pashtun population centers, not a migration.

Herat had Pashtuns at least as far back as the time of Ahmad Shah Durrani, but I believe many of the modern day Pashtun inhabitants migrated there after the formation of modern Afghanistan.

[Sarbani]

Herat is not southwestern, it's just western, and Nimruz is majority Baloch. If you look at the demographics at a provincial level (granted they are estimates for the most part), most of the Pashtuns in Nimruz and Farah are near the Pashtun-majority provinces they border. Afghanistan often moves the borders of provinces around (for example, Nuristan now contains land that is Pashtun and Tajik majority), so those areas may actually have been parts of Loy Kandahar. Even if that's not the case, it looks like a general trend of moving outwards from traditional Pashtun population centers, not a migration.

Herat had Pashtuns at least as far back as the time of Ahmad Shah Durrani, but I believe many of the modern day Pashtun inhabitants migrated there after the formation of modern Afghanistan.

My bad, the title would be more accurate titled "Western Afghanistan" then.

Northern Nimruz is Pashtun majority. I was referring to the Pashtun majority reasons of the specified provinces.

According to Samandri (he can't login here for some reason so he sent me this via reddit), the majority of Pashtuns settled Herat and Farah in the early 18th century (1700's).

http://www.barmazid.com/2019/03/history-of-ahmad-shah-abdali-part-1.html