
Harnett County
- State:
- North Carolina
Harnett County's estimated 2025 population is 147,475 with a growth rate of 2.08% in the past year according to the most recent United States census data. Harnett County is the 23rd largest county in North Carolina. The 2010 population was 115,757 and has seen a growth of 27.4% since that time.