| 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 |
| Romania | 2021 | Total | Male | Total | Census - de jure - complete tabulation | Final figure, complete | 2023 | 9,245,540 |
| Romania | 2021 | Total | Male | Armenian | Census - de jure - complete tabulation | Final figure, complete | 2023 | 592 |
| Romania | 2021 | Total | Male | Bulgarian | Census - de jure - complete tabulation | Final figure, complete | 2023 | 2,919 |
| Romania | 2021 | Total | Male | Croatian | Census - de jure - complete tabulation | Final figure, complete | 2023 | 2,377 |
| Romania | 2021 | Total | Male | Czech | Census - de jure - complete tabulation | Final figure, complete | 2023 | 767 |
| Romania | 2021 | Total | Male | German | Census - de jure - complete tabulation | Final figure, complete | 2023 | 11,421 |
| Romania | 2021 | Total | Male | Greek | Census - de jure - complete tabulation | Final figure, complete | 2023 | 1,250 |
| Romania | 2021 | Total | Male | Hungarian | Census - de jure - complete tabulation | Final figure, complete | 2023 | 480,563 |
| Romania | 2021 | Total | Male | Italian | Census - de jure - complete tabulation | Final figure, complete | 2023 | 3,362 |
| Romania | 2021 | Total | Male | Jewish | Census - de jure - complete tabulation | Final figure, complete | 2023 | 1,358 |
| Romania | 2021 | Total | Male | Polish | Census - de jure - complete tabulation | Final figure, complete | 2023 | 1,021 |
| Romania | 2021 | Total | Male | Romanian | Census - de jure - complete tabulation | Final figure, complete | 2023 | 7,159,320 |
| Romania | 2021 | Total | Male | Serbian | Census - de jure - complete tabulation | Final figure, complete | 2023 | 5,928 |
| Romania | 2021 | Total | Male | Slovak | Census - de jure - complete tabulation | Final figure, complete | 2023 | 4,890 |
| Romania | 2021 | Total | Male | Tatar | Census - de jure - complete tabulation | Final figure, complete | 2023 | 8,630 |
| Romania | 2021 | Total | Male | Ukrainian | Census - de jure - complete tabulation | Final figure, complete | 2023 | 23,033 |
| Romania | 2021 | Total | Male | Other | Census - de jure - complete tabulation | Final figure, complete | 2023 | 14,236 |
| Romania | 2021 | Total | Male | Romani (Gypsy) | Census - de jure - complete tabulation | Final figure, complete | 2023 | 290,760 |
| Romania | 2021 | Total | Male | Turks | Census - de jure - complete tabulation | Final figure, complete | 2023 | 11,315 |
| Romania | 2021 | Total | Male | Russian-Lipoveni | Census - de jure - complete tabulation | Final figure, complete | 2023 | 9,091 |
| Romania | 2021 | Total | Male | Unknown | Census - de jure - complete tabulation | Final figure, complete | 2023 | 1,212,707 |
| Romania | 2021 | Total | Female | Total | Census - de jure - complete tabulation | Final figure, complete | 2023 | 9,808,275 |
| Romania | 2021 | Total | Female | Armenian | Census - de jure - complete tabulation | Final figure, complete | 2023 | 621 |
| Romania | 2021 | Total | Female | Bulgarian | Census - de jure - complete tabulation | Final figure, complete | 2023 | 3,056 |
| Romania | 2021 | Total | Female | Croatian | Census - de jure - complete tabulation | Final figure, complete | 2023 | 2,465 |
| Romania | 2021 | Total | Female | Czech | Census - de jure - complete tabulation | Final figure, complete | 2023 | 809 |
| Romania | 2021 | Total | Female | German | Census - de jure - complete tabulation | Final figure, complete | 2023 | 11,486 |
| Romania | 2021 | Total | Female | Greek | Census - de jure - complete tabulation | Final figure, complete | 2023 | 836 |