"LESSA is in use in families with generational deafness, in public deaf education, within deaf associations, at churches with interpreted services, for distributing information on the internet, and for official interpretation for the government of El Salvador. The growth and spread of deaf education using LESSA suggests that the percentage of LESSA users will increase. Multigenerational deaf families all use LESSA (Ciupek-Reed 2012)."

"Some also use American Sign Language [ase], especially in the western region. A few also use Costa Rican Sign Language [csr], in the eastern region, mixed with LESSA. Also use Spanish [spa], with positive attitude toward developing Spanish reading and writing skills."