Court, hospital and USCIS interpreting across the US for the Khmer language of Cambodia, with in-person cover in Long Beach and Lowell, plus certified translation.
Prism Linguistics provides Khmer (Cambodian) interpreters, this is the Khmer language of Cambodia, for court hearings, hospital appointments and USCIS interviews across the United States, in person, by phone or by video, and certified English translation of the commune birth certificates, family books and marriage records that arrive written in Khmer script.
Last reviewed September 2, 2026 by Sarah J, Prism Linguistics
First, the plain version: Khmer and Cambodian are the same language, and if you have been asked to book a Cambodian interpreter, this is the page. The people who need one in the United States are mostly the older generation who arrived as refugees in the 1980s, and their largest communities are in Long Beach and in Lowell, Massachusetts. Their children usually do not need an interpreter; their parents at a naturalization interview, or a grandmother in an emergency room, do. Our office is in New York and we assign a Khmer interpreter based near you where the numbers allow, by phone or video everywhere else.
Because the demand sits with the refugee generation, most of our Khmer work is medical and court interpreting for older people, not paperwork for the young. That shapes how we assign. An elderly patient does better with a person in the room than a voice on a phone, and a witness recalling events from the Khmer Rouge years or the camps needs an interpreter who will not flinch from the detail. We match for that, not just for the language on the form.
Ask where the speaker grew up. Standard Khmer is what a Phnom Penh registrar speaks, but Northern Khmer from Surin in Thailand and Khmer Krom from the Mekong Delta in Vietnam carry enough different vocabulary to matter in a careful account. We check at intake, because a mismatch that no one notices is worse than one caught early.
Khmer is one of the languages a handful of states, California among them, have actually credentialed court interpreters in, so what a bench will accept varies from one state to the next. Tell us the court and the case type and we confirm the credential it expects before you book. Where no certified interpreter is available in a state, courts work from a qualified one, and a rarer request like Khmer is often why an agency is called at all. We are a private agency, rather than a court-appointed vendor.
Any hospital that takes federal funding must provide a Khmer interpreter at no cost, and an elderly Cambodian patient is exactly who that rule was written for. A grown child can carry a routine visit, but a diagnosis, a consent form or a mental-health assessment should not rest on a relative who softens the hard news. For those appointments we send a person in where we can, especially around Long Beach and Lowell; video covers the rest.
The common USCIS work is a parent at a naturalization interview, brought over years after the children settled, and the interpreter's job there is narrow and strict: render each answer as it is given, without softening or tidying it. Where a birth was never registered, and among older Cambodians that is common, the file may lean on a family book instead of a certificate, and an interpreter who understands the document helps the interview move. We brief every interpreter to render and nothing more, and we never seat a relative in that chair.
A Cambodian document brings two problems a general translator misses, the script and the numerals, and both change facts if they are read wrong.
Cambodia registers births, marriages and deaths through the commune or sangkat chief, who acts as civil registrar across more than 1,600 commune offices, and every certificate that comes out is in Khmer script and nothing else. Alongside the birth certificate sits the family book, the household record that Cambodians actually use to prove who they are and who their relatives are, and USCIS accepts it as supporting evidence. The catch is the numerals. Khmer has its own digits, and register numbers, dates and house numbers are often written in them, so a translator who misreads one changes a date of birth. Names bring their own trap: written family name first, with no single standard romanisation, the same name can reach a passport one way and a school record another. We keep the register entry number as printed, translate the commune, district and province, turn every Khmer numeral into a Western one, and spell each name to the passport with its variant noted. The full document service is at certified translation.
Tell us the date, the city and the setting, or send a clear scan of the document. We reply with a fixed price and, for interpreting, a named linguist. Call +1 (833) 282 8883, email info@prismlinguistics.com, or use the quote form and you will hear back within 60 minutes during business hours.
Our only office is in New York, and our Khmer (Cambodian) interpreters work nationwide. For in-person work we assign someone based in or near the city. These are the areas where Khmer (Cambodian) work is concentrated; the full list of 288 cities is below it.
Prism Linguistics is rated 4.6 out of 5 across 67 client reviews for its interpreting and translation work in the United States. That is the company-wide figure; we do not publish a separate rating per language because there is no honest way to measure one. If a Khmer (Cambodian) assignment ever falls short, tell us and we put it right.