MARICOPA COUNTY PHOENIX, ARIZONA Maricopa County is located in the south-central part of Arizona. The population is nearing 4 million residents, making it the most populous in the state and the fourth most populous in the United States. The county seat is Phoenix, which is the state capital and sixth most populous city in the country. CASE STUDY Retro-Tech Systems 853 Eastport Centre Drive Valparaiso, IN 46383 Phone: 219.256.7200 www

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