Cooper Lake is officially full according to Water Data for Texas. Cooper Lake, officially named Jim Chapman Lake, currently has a water level of 440.90 feet. One year ago, the lake was at 39.9% full but had fallen to 35% full only six months ago. Three months ago, the lake level had recovered to 39% and one week ago to 88.4%.
Water shed for Cooper Lake is considered small but is adequate to keep the lake at or near full levels with normal annual rainfall. The heavy rains of the past month have filled the lake.
The date oflake impoundment for Cooper Lake was January 1, 1991.