population mercer county new jersey
Mercer County, New Jersey (NJ) County population in 2014: 371,537 (97% urban, 3% rural); it was 350,761 in 2000. County owner-occupied with a mortgage or a loan houses and condos in 2010: 64,356. County owner-occupied free and clear houses and condos in 2010: 23,344. County owner-occupied houses and condos in 2000: 84,325.