<page_title> Union Township, Hunterdon County, New Jersey </page_title> <section_title> Demographics </section_title> <table> <cell> 1990 <col_header> Historical population </col_header> <col_header> Census </col_header> </cell> <cell> 5,078 <col_header> Historical population </col_header> <col_header> Pop. </col_header> </cell> <cell> 2000 <col_header> Historical population </col_header> <col_header> Census </col_header> </cell> <cell> 6,160 <col_header> Historical population </col_header> <col_header> Pop. </col_header> </cell> <cell> 21.3% <col_header> Historical population </col_header> <col_header> %± </col_header> </cell> <cell> 2010 <col_header> Historical population </col_header> <col_header> Census </col_header> </cell> <cell> 5,908 <col_header> Historical population </col_header> <col_header> Pop. </col_header> </cell> <cell> −4.1% <col_header> Historical population </col_header> <col_header> %± </col_header> </cell> </table>
As of the 2010 Census, the Union Township, Hunterdon County, New Jersey population was 5,908, reflecting a decline of 252 (-4.1%) from the 6,160 counted in the 2000 Census, which had in turn increased by 1,082 (+21.3%) from the 5,078 counted in the 1990 Census.