Every New Jersey counties posted gains in home prices over the past year with three counties seeing increases of at least 10%, according to data from Zillow. Mercer, Camden and Atlantic counties topped the list for rising home values in the state between December 2022 and 2023, according Zillow. The highest typical home values were reported in Cape May County at $681,756 in December, according to Zillow. Mercer County, where the typical home value is $389,853, saw the highest year-over-year increase at 10.89%. Statewide, the typical home value was $495,287 as of December, placing the Garden St…