A young town between two cities
Morrisville is mostly in Wake County, with a part in Durham County. The Census Bureau estimates 32,466 residents on July 1, 2025 (PEP Vintage 2025). Its homes are among the newest in the Triangle: the ACS 2020–2024 5-year estimates put the median year built at 2007, with only about 2.6% of homes built before 1980.
The bigger number is tenure. About 54.6% of Morrisville homes are renter-occupied, compared with 47.7% in Durham and 33.4% in Cary. A renter majority that large points to many apartments and townhomes, and the RTP office parks are close by.
The official weather normals for this whole region are measured at Raleigh-Durham International Airport, close by: about 46 inches of rain a year, July and September the wettest months, about 52 days at 90°F or hotter, and summer dew points in the upper 60s (NOAA 1991–2020).