Łomża Governorate Language Language

| Language_ | Number_ | percentage_ | males | females |
|---|---|---|---|---|
| Polish | 448 065 | 77.3 | 220 787 | 227 278 |
| Yiddish | 91 236 | 15.74 | 44 669 | 46 567 |
| Russian | 27 941 | 4.82 | 25 233 | 2 708 |
| German | 4 651 | 0.8 | 2 387 | 2 264 |
| Ukrainian | 3 832 | 0.66 | 3750 | 82 |
| Latvian | 2 509 | 0.43 | 2 502 | 7 |
| Other | 1 336 | 0.23 | 1 137 | 199 |
| Persons that didn`t name their native language | 14 | >0.01 | 7 | 7 |
| Total | 579 592 | 100 | 300 487 | 279 105 |