99116 is zip code located in Coulee Dam, Washington. The population is 1,859, making 99116 the largest zipcode in Coulee Dam and the 8th largest in Grant County.
There are 2 public schools in 99116 with an average Homefacts rating of C+. , and there are 2 registered sex offenders residing in the zip code 99116. Unemployment in 99116 is very high.