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Ketchikan Gateway Borough, AK, exhibits a modest population growth rate of 0.31% over the past 13 years, though it has seen a slight decline of 0.2% in the last year. The median age is 40.6, which is higher than the state average of 35.3, indicating an aging population. The borough has a relatively balanced sex ratio of 108.3 and a significant old-age dependency ratio of 26.8%, suggesting a growing elderly population compared to younger residents (21% under 18). Compared to other counties in Alaska, Ketchikan's demographic trends reflect a similar aging pattern, with higher old-age percentages than many regions, such as Anchorage and Fairbanks.