Kodiak Island Borough, Alaska Demographics

Population trends, housing costs, income, commuting, and health, all on one page.

Kodiak Island Borough, AK Population Density Map and Area Scores

Area Score

Health, income and education, each graded from F to A+. Explore interactive maps for deeper analysis.

  • B
    Health Around average
    Healthier than 81% of counties in Alaska
  • B
    Income Around average
  • C
    Education Below average
    Better educated than 72% of counties in Alaska

Source: Map AI Methodology

Kodiak Island Borough
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Population density, people per sq mi

Population: density and quick facts

Metric Kodiak Island Borough Alaska Avg U.S. Average
Population 12,771 735,577 337,468,954
Population density (per sq mi) 1.1 1.1 86.4
Population growth (%/yr) -1.07% -0.03% 0.59%
Median age 35.2 36.2 37.3
Households 4,639 270,488 130,235,071

Population in Kodiak Island Borough declined by 2.9% from 2009 to 2024, reaching 12,771 in 2024.

Population Growth 2009–2024

Year Kodiak Island Borough

Race & Ethnicity

Group Share

Age & Sex

The largest generation in Kodiak Island Borough is Millennials, aged 29–44, at 24.1% of residents. That is 0.1 points above Alaska as a whole.

Residents by birth cohort, from the 2025 age distribution. The right-hand figure is how far each cohort's share sits above or below Alaska, in percentage points. Children younger than Gen Z and the generations before the Boomers are counted in the population but not shown here, so these shares do not add up to 100%.

Male and female share

Women are 46.8% of the people living in Kodiak Island Borough and men 53.2%.

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12,771

100% of everyone living in Kodiak Island Borough

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Economy

Kodiak Island Borough has a the economy index of B, which means it is quite prosperous.

Metric Kodiak Island Borough Alaska Avg U.S. Average
Median household income $84,938 $93,666 $80,455
Income growth (%/yr) 1.86% 2.94% 4.80%
Unemployment rate 4.3% 5.5% 5.2%

The median household income in Kodiak Island Borough is about 9% lower than in Alaska.

Detailed wealth and income breakdown →

Housing

Metric Kodiak Island Borough Alaska Avg U.S. Average
Median home price $840,172 $320,616 $248,835
Median rent $1,764 $1,418 $1,407
Homeownership rate 61.1% 66.8% 65.2%

The median home price in Kodiak Island Borough is about 39.7 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $1,764 per month for that long.

Full housing market analysis →

Commute Time & Mobility

Commuters in Kodiak Island Borough spend about 18 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 74 hours, about 3.1 full days, spent commuting.

Metric Kodiak Island Borough Alaska Avg U.S. Average
One-way commute (min) 8.9 16.1 22.4
Round-trip commute (min) 17.8 32.2 44.8
Yearly time spent (hours) 74 134 187
Estimated yearly cost $2,303 $4,157 $5,790
Work from home 4.8% 9.7% 15.0%
Highway traffic (vehicles/day) — 4,865 8,813
Local road traffic (vehicles/day) 587 583 1,355

Fastest commutes among counties in Alaska: Skagway Municipality (4.7 min), Northwest Arctic Borough (5.5 min), Nome Census Area (5.8 min).
Slowest: Matanuska-Susitna Borough (25.3 min), Fairbanks North Star Borough (17.2 min), Anchorage Municipality (17.1 min).

The average commute time in Kodiak Island Borough is 9 minutes, shorter than the 16 minutes in Alaska.

Estimated yearly cost applies a single national wage rule of thumb (U.S. Bureau of Labor Statistics average hourly earnings), not a measurement of wages in this area. Traffic volume figures come from proprietary Ticon and TrafficZoom data.

Commute and transport details →

Education & Households

Kodiak Island Borough has a education index of C, which means it is somewhat educated.

Metric Kodiak Island Borough Alaska Avg U.S. Average
Bachelor's degree or higher 25.3% 27.6% 31.6%
Average household size 2.62 2.61 2.53

Highest education index among counties in Alaska: Haines Borough (0.3), Juneau City and Borough (0.3), Denali Borough (0.3).
Lowest: Kusilvak Census Area (0.1), Bethel Census Area (0.2), Northwest Arctic Borough (0.2).

Health

Kodiak Island Borough has a health index of B, which means it is quite healthy.

Metric Kodiak Island Borough Alaska Avg U.S. Average
Life expectancy (years) 80.4 79.9 78.3
Self-rated poor health 11.3% 15.4% 16.3%
Smokers 18.2% 22.7% 19.0%

Highest health index among counties in Alaska: Juneau City and Borough (0.8), Petersburg Borough (0.8), Chugach Census Area (0.8).
Lowest: Yukon-Koyukuk Census Area (0.8), Lake and Peninsula Borough (0.8), Northwest Arctic Borough (0.8).

Full health data →

Kodiak Island Borough, AK Compared With Nearby Counties

How Kodiak Island Borough, AK compares with the 2 counties closest to it.

Area Population Median household income Median home price Commute
Kodiak Island Borough, AK 12,771 $84,938 #2/3 $840,172 #1/3 8.9 min #1/3
Kenai Peninsula Borough, AK 60,577 $80,026 $264,574 16.1 min
Anchorage Municipality, AK 288,818 $103,263 $334,902 17.1 min

Frequently Asked Questions

Common questions about Kodiak Island Borough, Alaska.

How big is Kodiak Island Borough, Alaska by population?

About 12,771 people live in Kodiak Island Borough, Alaska, in 4,639 households of 2.6 people on average. The median age is 35.2, so residents are younger than the U.S. median of 37.3 by about 2 years.

How densely populated is Kodiak Island Borough, Alaska?

Averaged over its land area, Kodiak Island Borough, Alaska has 1 people per square mile, a density typical of rural areas. That is about 1% of the U.S. average of 86.

Can a typical household afford a home in Kodiak Island Borough, Alaska?

The median home costs 9.9 times the median household income ($840,172 against $84,938), compared with 3.1 times nationally. A ratio of about 3 is traditionally considered affordable. Median rent of $1,764 a month takes about 25% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.

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