Simplify the following text for a Grade 9 native English-speaking person.
Original: Lamar is a small , unincorporated community in Aransas County , Texas ( USA ) , ten miles north of Rockport and forty miles north of Corpus Christi .
Simplified: Lamar is a small community in Aransas County , Texas , ten miles north of Rockport and forty miles north of Corpus Christi .