| Regions with significant populations | |
|---|---|
 Russia | ~ 100,000 |
| Languages | |
| Tobol-Irtysh dialect of Siberian Tatar, Russian | |
| Religion | |
| Sunni Islam | |
Tobol Tatars are a sub-group of Siberian Tatars. [1] Tobol Tatars are settled along the rivers Irtysh, Tobol, Iset, Tura, Pyshma, Tavda, Noska, Layma in Tyumen and Omsk Oblasts. Their historical administrative center was the town of Isker. [2]
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They are divided into four local sub-groups:
- Aremzyan-Nadtsin Tatars. They assimilated local Khanty and Mansi tribes, and have possible ties with Teleuts. In the 17th century it included Tatar volosts, located along the Irtysh river north of Tobolsk up to the Turtas river. They are the most northern subgroup.
- Iskero-Tobolsk Tatars. The group is located south of Tobolsk. The group is Yurtovsk Tatars, who were in military service. They are central subgroup, geographically speaking.
- Babasan Tatars. They inhabit part of the Tobol basin from the lower reaches of the Tavda to the Mirimov yurts, inhabited by Siberian Bukharans. The term comes from the name of the Babasan volosts, which were recorded from the end of the 16th century until the October Revolution. The Babasan Tatars lack Siberian Bukharan and Kazan Tatar admixture.
- Ishtyak-Tokuz Tatars. The group is named after two tribal groups of the Vagay river basin and Uvat swamps. They are the most eastern subgroup. Among them, the layer of southern Ugrians is more prominent, as well as their intermixing with the Iskero-Tobolsk and Kurdak-Sargat Tatars. [3]
They are the most numerous group of Tobol-Irtysh Tatars and speak Tobol speach, with Eastern Tobol (Tokuz-Uvat) subdialect. [4]