Petersburg Borough, Alaska Demographics
Population trends, housing costs, income, commuting, and health, all on one page.
Petersburg 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.
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B
Health Around averageAmong the top 3 healthiest counties in Alaska
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B
Income Around average
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D
Education Well below average
Source: Map AI Methodology
Population: density and quick facts
| Metric | Petersburg Borough | Alaska Avg | U.S. Average |
|---|---|---|---|
| Population | 3,409 | 735,577 | 337,468,954 |
| Population density (per sq mi) | 0.9 | 1.1 | 86.4 |
| Population growth (%/yr) | -0.10% | -0.03% | 0.59% |
| Median age | 45.7 | 36.2 | 37.3 |
| Households | 1,371 | 270,488 | 130,235,071 |
Population in Petersburg Borough declined by 16.2% from 2010 to 2024, reaching 3,409 in 2024.
Population Growth 2010–2024
Race & Ethnicity
Age & Sex
The largest generation in Petersburg Borough is Gen X, aged 45–60, at 24.7% of residents. That is 4.9 points above Alaska as a whole.
- Gen Z 13–28 604 17.7% -4.6 pts
- Millennials 29–44 641 18.8% -5.2 pts
- Gen X 45–60 843 24.7% +4.9 pts
- Boomers 61–79 751 22.0% +8.0 pts
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 47.7% of the people living in Petersburg Borough and men 52.3%.
- Women 47.7% Alaska 47.6%
- Men 52.3% Alaska 52.4%
How many residents match a customer profile?
Residents matching this profile
100% of everyone living in Petersburg Borough
Pick an age range and a women/men split and the figure above answers with how many residents that profile reaches.
Economy
Petersburg Borough has a the economy index of B, which means it is quite prosperous.
| Metric | Petersburg Borough | Alaska Avg | U.S. Average |
|---|---|---|---|
| Median household income | $75,044 | $93,666 | $80,455 |
| Income growth (%/yr) | 2.05% | 2.94% | 4.80% |
| Unemployment rate | 3.6% | 5.5% | 5.2% |
The median household income in Petersburg Borough is about 20% lower than in Alaska.
Housing
| Metric | Petersburg Borough | Alaska Avg | U.S. Average |
|---|---|---|---|
| Median home price | $199,998 | $320,616 | $248,835 |
| Median rent | $950 | $1,418 | $1,407 |
| Homeownership rate | 65.7% | 66.8% | 65.2% |
The median home price in Petersburg Borough is about 17.6 years' worth of rent — buying at the median price costs roughly as much as paying the median rent of $950 per month for that long.
Commute Time & Mobility
Commuters in Petersburg Borough spend about 12 minutes on the road round trip each working day. Over a typical 250-day work year, that adds up to roughly 51 hours, about 2.1 full days, spent commuting.
| Metric | Petersburg Borough | Alaska Avg | U.S. Average |
|---|---|---|---|
| One-way commute (min) | 6.2 | 16.1 | 22.4 |
| Round-trip commute (min) | 12.3 | 32.2 | 44.8 |
| Yearly time spent (hours) | 51 | 134 | 187 |
| Estimated yearly cost | $1,589 | $4,157 | $5,790 |
| Work from home | 6.5% | 9.7% | 15.0% |
| Highway traffic (vehicles/day) | — | 4,865 | 8,813 |
| Local road traffic (vehicles/day) | 219 | 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 Petersburg Borough is 6 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.
Education & Households
Petersburg Borough has a education index of D, which means it is barely educated.
| Metric | Petersburg Borough | Alaska Avg | U.S. Average |
|---|---|---|---|
| Bachelor's degree or higher | 23.0% | 27.6% | 31.6% |
| Average household size | 2.28 | 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
Petersburg Borough has a health index of B, which means it is quite healthy.
| Metric | Petersburg Borough | Alaska Avg | U.S. Average |
|---|---|---|---|
| Life expectancy (years) | 84.6 | 79.9 | 78.3 |
| Self-rated poor health | 12.7% | 15.4% | 16.3% |
| Smokers | 18.8% | 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).
Petersburg Borough, AK Compared With Nearby Counties
How Petersburg Borough, AK compares with the 1 counties closest to it.
| Area | Population | Median household income | Median home price | Commute |
|---|---|---|---|---|
| Petersburg Borough, AK | 3,409 | $75,044 #2/2 | $199,998 #1/2 | 6.2 min #1/2 |
| Juneau City and Borough, AK | 31,790 | $102,083 | $193,749 | 13.4 min |
Frequently Asked Questions
Common questions about Petersburg Borough, Alaska.
How many people live in Petersburg Borough, Alaska?
About 3,409 people live in Petersburg Borough, Alaska, in 1,371 households of 2.3 people on average. The median age is 45.7, so residents are older than the U.S. median of 37.3 by about 8 years.
Is Petersburg Borough, Alaska mostly urban or rural?
Averaged over its land area, Petersburg 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.
How affordable is housing in Petersburg Borough, Alaska?
The median home costs 2.7 times the median household income ($199,998 against $75,044), compared with 3.1 times nationally. That is within the traditional rule of thumb of about 3 times income. Median rent of $950 a month takes about 15% of the median household's income, below the 30% level at which HUD considers renters cost-burdened.
How strong is the job market in Petersburg Borough, Alaska?
Unemployment in Petersburg Borough, Alaska is only 3.6%, well below the U.S. rate of 5.2%, a sign of a tight labor market where employers compete for workers.
What share of adults in Petersburg Borough, Alaska have a college degree?
23.0% of adults in Petersburg Borough, Alaska hold a bachelor's degree or higher (about 1 in 4), well below the U.S. share of 31.6%.
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