<page_title> List of highest-income counties in the United States </page_title> <section_title> American Community Survey </section_title> <table> <cell> 4 <col_header> Rank </col_header> </cell> <cell> Hunterdon County <col_header> County </col_header> </cell> </table>
Hunterdon County is the fourth-highest county in the United States based on median household income.