If you're thinking of moving to Sitka, Alaska, you may be wondering: What's the Population & Steets in Siitka City? Whether you're a first-time homeowner or a seasoned real estate investor, here's what you need to know about the area. Located in Sitka County, Alaska, the city of 99835 is home to approximately 8,310 people. The population of the city is shrinking rapidly, with a decrease of -0.73% per year since the 2010 census. The median rent is $1,159 per month, and the median house value is $365,800. Sitka City has a median age of 38.4 years for males and 38.5 years for females.