| Country or Area | Year | Area | Sex | National and/or ethnic group | Record Type | Reliability | Source Year | Value | |
|---|
| Romania | 2021 | Total | Both Sexes | Total | Census - de jure - complete tabulation | Final figure, complete | 2023 | 19,053,815 |
| Romania | 2021 | Total | Both Sexes | Armenian | Census - de jure - complete tabulation | Final figure, complete | 2023 | 1,213 |
| Romania | 2021 | Total | Both Sexes | Bulgarian | Census - de jure - complete tabulation | Final figure, complete | 2023 | 5,975 |
| Romania | 2021 | Total | Both Sexes | Croatian | Census - de jure - complete tabulation | Final figure, complete | 2023 | 4,842 |
| Romania | 2021 | Total | Both Sexes | Czech | Census - de jure - complete tabulation | Final figure, complete | 2023 | 1,576 |
| Romania | 2021 | Total | Both Sexes | German | Census - de jure - complete tabulation | Final figure, complete | 2023 | 22,907 |
| Romania | 2021 | Total | Both Sexes | Greek | Census - de jure - complete tabulation | Final figure, complete | 2023 | 2,086 |
| Romania | 2021 | Total | Both Sexes | Hungarian | Census - de jure - complete tabulation | Final figure, complete | 2023 | 1,002,151 |
| Romania | 2021 | Total | Both Sexes | Italian | Census - de jure - complete tabulation | Final figure, complete | 2023 | 4,039 |
| Romania | 2021 | Total | Both Sexes | Jewish | Census - de jure - complete tabulation | Final figure, complete | 2023 | 2,378 |
| Romania | 2021 | Total | Both Sexes | Polish | Census - de jure - complete tabulation | Final figure, complete | 2023 | 2,137 |
| Romania | 2021 | Total | Both Sexes | Romanian | Census - de jure - complete tabulation | Final figure, complete | 2023 | 14,801,442 |
| Romania | 2021 | Total | Both Sexes | Serbian | Census - de jure - complete tabulation | Final figure, complete | 2023 | 12,026 |
| Romania | 2021 | Total | Both Sexes | Slovak | Census - de jure - complete tabulation | Final figure, complete | 2023 | 10,232 |
| Romania | 2021 | Total | Both Sexes | Tatar | Census - de jure - complete tabulation | Final figure, complete | 2023 | 18,156 |
| Romania | 2021 | Total | Both Sexes | Turkish | Census - de jure - complete tabulation | Final figure, complete | 2023 | 20,945 |
| Romania | 2021 | Total | Both Sexes | Ukrainian | Census - de jure - complete tabulation | Final figure, complete | 2023 | 45,835 |
| Romania | 2021 | Total | Both Sexes | Other | Census - de jure - complete tabulation | Final figure, complete | 2023 | 22,078 |
| Romania | 2021 | Total | Both Sexes | Romani (Gypsy) | Census - de jure - complete tabulation | Final figure, complete | 2023 | 569,477 |
| Romania | 2021 | Total | Both Sexes | Turks | Census - de jure - complete tabulation | Final figure, complete | 2023 | 20,945 |
| Romania | 2021 | Total | Both Sexes | Russian-Lipoveni | Census - de jure - complete tabulation | Final figure, complete | 2023 | 19,394 |
| Romania | 2021 | Total | Both Sexes | Unknown | Census - de jure - complete tabulation | Final figure, complete | 2023 | 2,484,926 |