Morris County had an estimated population of 514,423 in 2023, showing steady growth in recent years. From 2021 to 2023, the county saw an increase of about 3,810 residents. With a high rate of homeownership (around 73.8%), Morris County is largely residential, with a mix of suburban communities and natural areas. Its median household income ranks among the highest in the state, contributing to its reputation as an affluent area. Population growth in the county has averaged around 0.37% annually over the past decade . It's county seat is Morristown.