The protection and benefits of naturalizing are certainly worth attempting to start the process. (Plus application fees for the N-400 are schedule to increase by December 23, 2016.) As a US citizen you are granted a permanent right to reside in the U.S. without the worry of losing it if, for instance, you engage in certain criminal activity. So who’s eligible to apply for Naturalization (N-400 Application for Naturalization)?
The applicant must be least 18 years of age at the time of filing (except active duty members of the U.S. Armed Forces).
The applicant must have been lawfully admitted as a U.S. permanent resident.
Five-Year / Three-Year Residence in the United States
After becoming a lawful permanent resident and immediately before filing an application for naturalization, the alien must have “resided continuously within the U.S. for at least five years. The residence requirement is three years for applicants that are married and living with a U.S. citizen.
Residence after Application
In addition to the 5-year / 3-year U.S. residence requirement, the applicant must maintain continuous U.S. residence from the time of the application until they are admitted as a U.S. citizen.
Prior to the time the application is filed, the applicant must have been physically present in the US for at least one-half of the five or three years of continuous residence.
Residence in a DHS District
The applicant must have lived within the state or USCIS district where you claim residence for at least 3 months prior to filing.
Good Moral Character
The applicant must show that for at least the 5-year/3-year period of required continuous residence, they were a person of good moral character.
Attached and Well-Disposed
The applicant must demonstrate an attachment to the principles and ideals of the U.S. Constitution.
English Literacy and Knowledge of History and Government
The applicant must demonstrate that he/she is able to read, write, and speck English in simple words and phrases. The applicant must also demonstrate his knowledge and understanding of the fundamentals of the history, principles, and form of government of the U.S.