| Maryland | ||
| 1 | Spanish | 174,142 |
| 2 | Chinese | 29,766 |
| 3 | Korean | 21,344 |
| 4 | Vietnamese | 12,905 |
| 5 | French | 12,695 |
| 6 | Tagalog | 10,644 |
| 7 | Russian | 8,713 |
| 8 | Amharic* | 7,435 |
| 9-11 | Kru*†, Ibo*, and Yoruba* | 5,605 |
| 12 | Urdu | 5,456 |
| 13 | Persian ◘ | 4,756 |
| 14 | French Creole ♠ | 3,854 |
| 15 | Portuguese | 3,496 |
| 16 | Arabic | 3,363 |
| 17 | Gujarati | 3,270 |
| Pennsylvania | ||
| 1 | Spanish | 215,529 |
| 2 | Chinese | 43,089 |
| 3 | Vietnamese | 23,912 |
| 4 | Russian | 17,418 |
| 5 | Pennsylvanian Dutch* | 16,510 |
| 6 | Korean | 14,783 |
| 7 | Italian | 12,079 |
| 8 | Arabic | 11,150 |
| 9 | French | 9,751 |
| 10 | German | 9,444 |
| 11 | Gujarati | 7,231 |
| 12 | Polish | 7,030 |
| 13 | French Creole ♠ | 6,849 |
| 14 | Mon-Khmer, Cambodian | 6,820 |
| 15 | Portuguese | 5,087 |