Susni Kaq' is a area located in Matanuska-Susitna County, Alaska. It appears on the Tyonek B-2 SW USGS 7.5-minute topographic quadrangle. The elevation at this location is approximately 8.35 feet (2.55 m) above sea level. The nearest populated place is Tuqen Kaq' (historical), approximately 9.3 miles to the N.