 On December 14, 2017, following the advice of legal counsel, the Mahwah council repealed the still-unenforced ban on out-of-state park users, and abandoned an attempt to amend the sign ordinance to bar "other matter" (the lechis) from being affixed to utility poles to form an Orthodox Jewish eruv.According to the United States Census Bureau, the township had a total area of 26.191 square miles (67.835 km2), including 25.693 square miles (66.545 km2) of land and 0.498 square miles (1.290 km2) of water (1.90%).It is the largest municipality in Bergen County by area, more than 2½ times larger than the next-largest municipality, Paramus, and covering 10.6% of the total area of the entire county.