Monthly rankings of the hottest, coldest and fastest-changing ZIP codes we track, the monthly Bidding War Index, a weekly area spotlight and a weekly mortgage-rate watch. RSS feed
The average 30-year fixed mortgage rate was 7.03% in Freddie Mac’s survey for the week of September 24, 2026, up 0.08 points from the week before and up 0.73 points from a year earlier. On a $632,807 home in Essex, Morris, Union, Sussex & Hunterdon, NJ with 10% down, principal and interest would be about $3,801 a month, $31 more than at last week’s average.
54.2% of homes sold above their original list price across the 670 ZIP codes we track in northern and central New Jersey, Long Island and the Bay Area (3 months ending August 31, 2026), up 1 points from a year earlier.
In the 4 weeks ending September 20, 2026, 56.6% of homes sold in Essex, Morris, Union, Sussex & Hunterdon, NJ closed above their original list price (down 0.2 points from a year earlier), with 2.8 months of supply and a median of 27 days on market. The most competitive ZIP code in the area was Montclair, NJ 07043.
Comparing the 3 months ending August 31, 2026 with the 3 months ending May 31, 2026 across 460 ZIP codes, Woodcliff Lake, NJ 07677 heated up the most (heat score 15 to 65), and San Jose, CA 95128 cooled the most (73 to 28).
Southampton, NY 11968 had the least competition of the 531 ZIP codes we rank for the 3 months ending August 31, 2026: 3.3% of sales closed above the original list price, with 8 months of supply.
Montclair, NJ 07043 was the most competitive of the 531 ZIP codes we rank for the 3 months ending August 31, 2026: 94.2% of sales closed above the original list price, with 0.4 months of supply. This month’s top 10 spans 2 of the 6 areas we cover.