According to Professor Vyacheslav Ivanov of UCLA, there are at least 224 identified languages in Los Angeles County. This does not include differing dialects. Professor Ivanov estimates that publications are locally produced in about 180 of these languages. Only 92 languages have been specifically identified among students of the Los Angeles Unified School District.
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| Age Group | Age 5 to 17 | Age 18+ | All Ages | All Ages Percent |
| Total | 696,630 | 2,716,259 | 3,412,889 | 100.00% |
| Speak only English | 233,954 | 1,204,619 | 1,438,573 | 42.15% |
| Spanish or Spanish Creole | 391,124 | 1,031,192 | 1,422,316 | 41.67% |
| French (incl. Patois, Cajun) | 1,843 | 18,178 | 20,021 | 0.59% |
| French Creole | 141 | 757 | 898 | 0.03% |
| Italian | 629 | 8,986 | 9,615 | 0.28% |
| Portuguese or Portuguese Creole | 382 | 3,391 | 3,773 | 0.11% |
| German | 615 | 11,564 | 12,179 | 0.36% |
| Yiddish | 199 | 3,883 | 4,082 | 0.12% |
| Other West Germanic languages | 65 | 2,154 | 2,219 | 0.07% |
| Scandinavian languages | 165 | 2,721 | 2,886 | 0.08% |
| Greek | 122 | 2,934 | 3,056 | 0.09% |
| Russian | 3,647 | 25,223 | 28,870 | 0.85% |
| Polish | 209 | 3,236 | 3,445 | 0.10% |
| Serbo-Croatian | 289 | 3,749 | 4,038 | 0.12% |
| Other Slavic languages | 308 | 2,815 | 3,123 | 0.09% |
| Armenian | 11,484 | 46,440 | 57,924 | 1.70% |
| Persian | 6,325 | 36,718 | 43,043 | 1.26% |
| Gujarathi | 226 | 2,147 | 2,373 | 0.07% |
| Hindi | 727 | 5,139 | 5,866 | 0.17% |
| Urdu | 731 | 2,492 | 3,223 | 0.09% |
| Other Indic languages | 1,607 | 7,701 | 9,308 | 0.27% |
| Other Indo-European languages | 540 | 4,827 | 5,367 | 0.16% |
| Chinese | 6,593 | 46,335 | 52,928 | 1.55% |
| Japanese | 1,226 | 20,438 | 21,664 | 0.63% |
| Korean | 11,425 | 69,615 | 81,040 | 2.37% |
| Mon-Khmer, Cambodian | 1,234 | 2,784 | 4,018 | 0.12% |
| Miao, Hmong | 0 | 43 | 43 | 0.00% |
| Thai | 1,439 | 8,560 | 9,999 | 0.29% |
| Laotian | 129 | 622 | 751 | 0.02% |
| Vietnamese | 2,807 | 14,879 | 17,686 | 0.52% |
| Other Asian languages | 390 | 4,368 | 4,758 | 0.14% |
| Tagalog | 8,251 | 69,783 | 78,034 | 2.29% |
| Other Pacific Island languages | 866 | 6,386 | 7,252 | 0.21% |
| Navajo | 9 | 146 | 155 | 0.00% |
| Other Native North American languages | 27 | 423 | 450 | 0.01% |
| Hungarian | 179 | 4,325 | 4,504 | 0.13% |
| Arabic | 2,062 | 11,516 | 13,578 | 0.40% |
| Hebrew | 3,052 | 13,240 | 16,292 | 0.48% |
| African languages | 823 | 6,630 | 7,453 | 0.22% |
| Other and unspecified languages | 786 | 5,300 | 6,086 | 0.18% |
