1934 Bulgarian census
The census of the population in the Kingdom of Bulgaria was held on 31 December 1934.
Ethnic groups
Number and share of ethnic groups.| Ethnicity | Numbers | % |
| Bulgarians | 5,204,217 | 85.6 |
| Turks | 591,193 | 9.7 |
| Roma | 149,385 | 2.5 |
| Jews | 48,565 | 0.8 |
| Armenians | 25,963 | 0.4 |
| Romanians | 16,504 | 0.3 |
| Russians | 11,928 | 0.2 |
| Greeks | 9,601 | 0.2 |
Religion
Number and share of the population by religion.| Religion | Numbers | % |
| Orthodox | 5,128,890 | 84.3 |
| Islam | 821,298 | 13.5 |
| Jews | 48,398 | 0.7 |
| Catholic | 45,704 | 0.7 |
| Armenian Gregorian | 23,476 | 0.3 |
| Protestants | 8,371 | 0.1 |
| Others | 1,802 | 0.0 |