The United Way of King County has a handy list of languages spoken at home by students with limited English proficiency in the various area school districts, divided by region. South King County has the highest language count, with 117 languages (unsurprising, as it’s where there is more affordable housing for new immigrants). Take a look at the list (links added to the ones I was unfamiliar with):
Language — Number of students
Spanish 6433 (sure, pretty obvious)
Ukrainian 1429
Russian 965
Vietnamese 792
Somali 701
Punjabi 517
Korean 364
Unknown 308 (wait, what? Seems like not trying hard enough to gather data)
Cambodian 277
Tagalog 259
Samoan 247
Bosnian 122
Chinese-Cantonese 107
Lao 105
Arabic 103
Rumanian 95
Amharic 83
Hindi 78
Marshallese 73
Chinese-Unspec. 70 (again, not trying very hard to gather data)
Hmong 57
Farsi 47
Ilokano 46
Tigrinya 41
Chinese-Mandarin 40
Kurdish 38
Thai 35
Swahili 32
Bulgarian 31
French 31
Tongan 26
Urdu 25
Japanese 24
Oromo 23
Pilipino 17
Portugese 16
Khmer 15
Mien 15
Polish 14
Albanian 12
Kosraean 11
German 11
Serbo-Croatian 11
Moldavian 11
Kikuya 9 (I linked to Kikuyu or Gikuyu, maybe a typo?)
Creole 9 (again, not trying very hard– which Creole?)
Liberian 9
Cebuano 8
Malayalam 7
Dinka 7 (Hey! I learned about the Dinka in my Anthropology classes!)
Ibo 7
Bantu 6
Gujarati 6
Kru 6 (I didn’t know there were Liberian families in the area… why not, I guess)
Pashto 6
Palau 6 (“one of the world’s youngest and smallest nations” and now smaller by 6)
Armenian 6
Cham 5
Wolof 5
Czech 5
Chuuk 5 (Wikipedia says Chuukese)
Indonesian 5
Chinese-Fukienese 5
Sinhalese 5
Telugu 5
Yoruba 5
Krio 5 (Sierra Leone lingua franca uniting the various language groups, from the word Creole, see above)
Nepali 5
Bengali 5
Mongolian 4
Persian 4 (only four? maybe only four that have limited English…)
Turkish 4
Ethiopic 4 (more entertaining name: Ge’ez)
Fula 3 (the ones you see in National Geographic so much)
Bassa 3
Chamorro 3
Burmese 3
Uzbek 3
Dari 3 (Zoroastrians!)
Hungarian 3
Fijian 3 (Only 350,000 native speakers, minus these 3)
Italian 3
Marathi 3
Luganda 3 (Luganda is from Uganda)
Carolinian 2 (from the Marianas!)
Ga 2 (shortest language name?)
Sudanese-Arabic 2
Byelorussian 2
Bemba 2
Kakwa 2 (rare Colombian language or African language?)
Lithuanian 2
Bangala 2
Hausa 2
Mixteco 2 (I wonder if they also speak Spanish?)
Haitian Creole 2
Akan 2 (appears to be a family of languages)
Kmhmu 2 (typo for Khmu?)
Latvian 1
Nigerian 1 (not specific enough! There are many languages in Nigeria, one is English)
Yap 1 (perhaps Yapese? What do you bet everyone asks about the money?)
Tibetan 1
Nuer 1 (another group I studied in college)
Lingala 1
Nyanja 1 (aka Chichewa?)
Papago 1 (perhaps a typo? I can’t find something this would be other than a Native American tribe that is unlikely not to be bilingual)
Taishan 1 (Wikipedia says this is a dialect of Cantonese)
Chinese-Taiwanese 1
Sogdian 1 (another unlikely one: said to have gone extinct in the 9th century)
Chungki 1 (I can’t find this at all)
Pulau-Guai 1 (I can’t find this either)
Hebrew, Modern 1
Danish 1
Hawaiian 1 (honestly? That would have to be a really sheltered Hawaiian kid to not have encountered much English)
Dutch 1
Fallani 1 (can’t find this either)
Slovak 1
Afrikaans 1