 yardville-groveville was a census-designated place and unincorporated community located within hamilton township, in mercer county, new jersey. as of the 2000 united states census, the cdp population was 9,208. as of the 2010 census, the area was split into two cdps, yardville and groveville.new jersey: 2010 - population and housing unit counts - 2010 census of population and housing (cph-2-32), p. iii-4. united states census bureau, august 2012. accessed november 20, 2012. "mercer countyâname changes: robbinsville township name changed from washington; new cdps: groveville (formed from part of deleted yardville-groveville cdp and additional area), hamilton square (formed from part of deleted mercerville-hamilton square cdp and additional area), mercerville (formed from part of deleted mercerv
Census-designated_places_in_Mercer_County,_New_Jersey Hamilton_Township,_Mercer_County,_New_Jersey