The 2022 New Jersey Congressional Elections by County, Combined, Congressional Democrats won by 9.8% over congressional Republicans; This margin is mostly powered mostly by their ability to hold white suburbanites to roughly around 2020 Levels, specifically in the 3rd, 5th, and 11th districts.
However, Republicans were able to get close due to a combination of Low minority turnout in the 8th, 9th, 10th and 12th districts, and the landslides from Dems not putting much effort into unseating Jeff Van Drew (NJ-2) or Chris Smith (NJ-4), resulting in them combined winning Ocean County by 40%
The three Notable results here are 1) D+7% in Passaic - most likely, mostly due to a complete collapse in Hispanic turnout in the County 2) Morris county, where Republicans lost the county again at the federal level powered by Sherrill almost matching in her portion of the county,
and 3) Gloucester county, where Donald Norcross' win in his portion of the county (that Contains most of Gloucester) overpowered JVD's landslide in his portion of the county for a 3.6% win in what was a strong night for Gloucester County Democrats.