Olgopol uezd
The Olgopol uezd was a county of the Podolia Governorate of the Russian Empire, with its administrative centre in Olgopol. It bordered the Bratslav and Gaysin uezds to the north, the Balta uezd, the Orgeev uezd of the Bessarabia Governorate to the south, the Yampol uezd to the west.The subcounties of the Olgopol uezd in 1912 were as follows:
| Name | Name in Russian | Capital |
| Bershad volost | Бершадская волость | Bershad |
| Voitovka volost | Войтовская волость | Voitovka |
| Demovka volost | Демовская волость | Demovka |
| Zhabokrych volost | Жабокрычская волость | Zhabokrych |
| Kamenka volost | Каменская волость | Kamenka |
| Lugi volost | Лугская волость | Lugi |
| Myastkovka volost | Мястковская волость | Myastkovka |
| Obodovka volost | Ободовская волость | Obodovka |
| Peschanka volost | Песчанская волость | Peschanka |
| Pyatkovka volost | Пятковская волость | Pyatkovka |
| Rashkov volost | Рашковская волость | Rashkov |
| Uste volost | Устьянская волость | Uste |
| Chebotarka volost | Чеботарская волость | Chebotarka |
| Chechelnik volost | Чечельницкая волость | Chechelnik |
Demographics
At the time of the Russian Empire Census on, the Olgopol uezd had a population of 284,253, including 140,810 men and 143,443 women. The majority of the population indicated Little Russian to be their mother tongue, with a significant Jewish speaking minority.
| Language | Native speakers | Percentage |
| Little Russian | 231,991 | 81.61 |
| Jewish | 32,555 | 11.45 |
| Romanian | 8,135 | 2.86 |
| Great Russian | 6,321 | 2.22 |
| Polish | 4,325 | 1.52 |
| German | 592 | 0.21 |
| Tatar | 92 | 0.03 |
| Czech | 72 | 0.03 |
| White Russian | 52 | 0.02 |
| Romani | 39 | 0.01 |
| French | 21 | 0.01 |
| Chuvash | 17 | 0.01 |
| Latvian | 11 | 0.00 |
| Bashkir | 4 | 0.00 |
| Mordovian | 3 | 0.00 |
| Other | 23 | 0.01 |
| Total | 284,253 | 100.00 |