1. Complete the entire Affidavit in black ink. Case Number: Name of Applicant.The meaning of MARICOPA is an Indian people of the Gila river valley, Arizona. Maricopa County Affidavit of Disclosure Form. Fill in the blank form formatted to comply with all recording and content requirements. Maricopa County, the most populous in the state, has 4.5 million residents and is the fastest growing county in the United States.