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Spanish medical interpreters

Real-time Spanish medical interpretation for healthcare teams, on phones, tablets, and computers.

Dialects supported by Opalite:MexicanEuropean (Castilian)ArgentinianCaribbeanPuerto RicanDominicanColombianGuatemalan

41.2 million people in the U.S. speak Spanish at home.

Source: U.S. Census Bureau, 2017-2021 American Community Survey 5-year estimates.

Spanish speakers by state
StateSpeakers
California10,510,000
Texas7,717,000
Florida4,470,000
New York2,802,000
Illinois1,628,000
New Jersey1,440,000
Arizona1,343,000
Georgia801,100
North Carolina753,100
Pennsylvania636,800
Massachusetts623,200
Washington620,200
Colorado600,600
Virginia595,200
Nevada591,300
New Mexico510,400
Maryland494,400
Connecticut413,800
Oregon353,300
Utah310,300
Indiana295,400
Michigan274,900
Oklahoma274,300
Tennessee271,500
Ohio259,600
Wisconsin257,000
South Carolina226,400
Kansas212,200
Minnesota207,300
Louisiana161,900
Alabama156,800
Arkansas155,500
Missouri150,400
Nebraska140,900
Idaho137,000
Rhode Island131,500
Iowa125,600
Kentucky115,800
Delaware66,430
Mississippi66,350
District of Columbia57,930
New Hampshire32,460
Hawaii31,420
Wyoming25,150
Alaska23,630
South Dakota17,790
West Virginia17,110
Montana14,550
North Dakota13,880
Maine11,920
Vermont7,122

State counts reflect the 15 most reported non-English languages in each state’s ACS table. States where Spanish falls outside the top 15 are shown without shading; the national total includes every state.

16.1 million

speakers of Spanish speak English less than “very well”: the federal threshold for needing language assistance.

39%

of Spanish speakers in the U.S. meet that limited-English definition.

10.5 million

people speak Spanish at home in California alone.

Source: U.S. Census Bureau, 2017-2021 American Community Survey 5-year estimates.

Meet Opalite.

Real-time AI medical interpretation in 150+ languages and dialects, connecting providers and patients in seconds.

  • Works on the devices care teams already carry: phones, tablets, computers, and telehealth platforms
  • Integrates with all EHRs
  • Built for HIPAA-compliant healthcare
  • SOC 2 Type II attested security controls

What to know when interpreting Spanish

Every language has grammar that an interpreter must handle correctly. These are the Spanish features that the fewest other languages in the world share, according to the World Atlas of Language Structures (WALS).

Indo-European · Romance · Eurasia

1.4%

of the world’s languages share this trait

Spanish turns a statement into a yes-or-no question by reordering the words or raising the voice alone, so an interpreter who misses the tone misses the question.

WALS 116A · Polar Questions · Interrogative word order

3.2%

of the world’s languages share this trait

Spanish builds its perfect tense from the verb for having, and that form tells an interpreter whether a symptom is finished or still going on.

WALS 68A · The Perfect · From possessive

4.8%

of the world’s languages share this trait

Spanish marks gender in “we” and “you” as well as “he” and “she”, a detail English drops that an interpreter must carry to keep clear who a patient is talking about.

WALS 44A · Gender Distinctions in Independent Personal Pronouns · In 3rd person + 1st and/or 2nd person

How Spanish is structured

Word ordersubject, object and verb
SVO
Adpositionsprepositions or postpositions
Prepositions
Adjectivebefore or after the noun
Noun-Adjective
Demonstrativethis and that, before or after
Demonstrative-Noun
Numeralnumber before or after the noun
Numeral-Noun
Genitivepossessor before or after
Noun-Genitive
Relative clausebefore or after the noun
Noun-Relative clause
Morphologyprefixing or suffixing
Strongly suffixing
Tonewhether pitch changes meaning
No tones
Casesnumber of noun cases
No morphological case-marking
Gendersnumber of noun genders
Two
Classifierscounting words for nouns
Not coded

Source: Dryer, Matthew S. & Haspelmath, Martin (eds.) 2013. WALS Online, Max Planck Institute for Evolutionary Anthropology, Leipzig. Spanish entry: wals.info SPA. Licensed under CC BY 4.0. Values are reproduced as WALS codes them; each links to its datapoint. The clinical readings are Opalite’s own inferences and are not part of WALS.

FAQs about Spanish medical interpreters

Three states hold 55% of the nation’s Spanish speakers, and Spanish ranks in the published top-15 language tables of all 50 states and Washington, DC.

Source: U.S. Census Bureau, 2017-2021 American Community Survey 5-year estimates.

Spanish was included in Opalite’s blinded validation study alongside Mandarin and Cantonese. Across the study, Opalite recorded over 90% fewer errors and over 98% fewer major and critical errors than certified medical interpreters. The study page provides the Spanish results and describes how the clinical dialogue was evaluated.

Try Spanish medical interpretation.

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