Should I state a felony conviction in a job application?

No. The only thing that counts is what is on the record today.

You should look closely at the question asked, and then be truthful. If it ask if you have ever been convicted of a felony, you may say no, since you were convicted of a misdemeanor. There is not law governing decisions to discharge for falsification of an employment application. What ever the employer says is final. No right to sue, no right to appeal, etc. I have seen valuable employees of 20+ years discharged for minor crimes that were not disclosed on the employment application. While many employees will overlook minor events, they will not overlook dishonest answers on the employment appl. When in doubt, disclose. Caveat: GA does not use the terms "D felony" and "A misdemeanor " so this answer assumes all felonies are same and all misdemeanors are same.

If you fail to disclose it and the employer finds out later, it will likely terminate your employment. damned if you do, damned if you don't.