BackUdvarhely County
Language
| District | Area (km2) |
Inhab. | Density | Hun. | Ger. | Slov. | Rom. | Russ. | Cro. | Serb. | Other | Notice |
| Homoródi | 910 | 27377 | 30.1 | 25940 | 703 | 638 | 3 | 93 | ||||
| Parajdi | 341 | 15479 | 45.4 | 15411 | 26 | 1 | 28 | 1 | 12 | |||
| Székelykeresztúri | 691 | 34193 | 49.5 | 31255 | 758 | 16 | 1847 | 1 | 316 | |||
| Udvarhelyi | 968 | 36880 | 38.1 | 35964 | 503 | 11 | 212 | 1 | 34 | 155 | ||
| Székelyudvarhely cc. | 28 | 10244 | 365.9 | 9888 | 212 | 5 | 115 | 1 | 23 | |||
| 2938 | 124173 | 118458 | 2202 | 33 | 2840 | 1 | 5 | 35 | 599 |
Religion
| District | Area (km2) |
Inhab. | Density | Rc. | Gc. | Calv. | Luth. | Go. | Unit. | Jew. |
| Homoródi | 910 | 27377 | 30.1 | 4540 | 790 | 8643 | 1362 | 1223 | 10655 | 153 |
| Parajdi | 341 | 15479 | 45.4 | 5628 | 138 | 8444 | 31 | 6 | 1091 | 141 |
| Székelykeresztúri | 691 | 34193 | 49.5 | 4747 | 301 | 12517 | 736 | 2299 | 12969 | 618 |
| Udvarhelyi | 968 | 36880 | 38.1 | 24472 | 115 | 9028 | 506 | 399 | 2212 | 145 |
| Székelyudvarhely cc. | 28 | 10244 | 365.9 | 5729 | 164 | 3000 | 356 | 93 | 640 | 256 |
| 2938 | 124173 | 45116 | 1508 | 41632 | 2991 | 4020 | 27567 | 1313 |
| Abbreviations: | ||||||
| Hun. Hungarian | Rc. Roman Catholic | Inhab. Inhabitants | ||||
| Ger. German | Gc. Greek Catholic | |||||
| Slov. Slovakian | Calv. Calvinist | cc. City with Council | ||||
| Rom. Romanian | Luth. Lutheran | cmr. City with Municipal Right | ||||
| Russ. Russniak | Go. Greek Orthodox | pv. Political Village (in Croatian-Slavonia) | ||||
| Cro. Croatian | Unit. Unitarian | v. Village (in Croatian-Slavonia) | ||||
| Serb. Serbian | Jew. Jewish | |||||