Petersburg, Alaska Demographics & Population 2026
Demographic data: ACS 2020–2024 five-year estimates. Sources and methodology
During the 2020–2024 ACS period, Petersburg, Alaska had a total population of 3,227, the 36th largest community in Alaska, with a median household income of $71,369, which is 23% lower than the state average. The poverty rate is 6.8%.
Petersburg Quick Facts
How Petersburg Changed
Change from the non-overlapping 2015–2019 ACS period to 2020–2024. Earlier dollar figures are adjusted to 2024 dollars; changes marked “no clear change” are within the combined 90% margins of error.
| Metric | 2015–2019 | 2020–2024 | Change |
|---|---|---|---|
| Population | 3,136 | 3,227 | No clear change (+2.9%) |
| Median household income | $87,073 | $71,369 | No clear change (-18.0%) |
| Median home value¹ | $281,709 | $308,400 | No clear change (+9.5%) |
| Median gross rent | $1,177 | $1,082 | No clear change (-8.0%) |
How Petersburg Compares
Median Household Income
Median Home Value
Economy & Housing
Household Income Distribution
Detailed income brackets
Employment
Housing Overview
People & Demographics
Age Distribution
Race & Ethnicity
- White: 62.2%
- Black: 1.4%
- Hispanic: 8.6%
- Asian: 13.1%
- Other: 0.2%
Diversity Index
A diverse community with significant representation from multiple racial and ethnic groups.
State average: 63 | National average: 61
Education
Educational Attainment (Adults 25+)
- < High School: 9.4%
- HS Diploma: 30.5%
- Some College: 25.5%
- Associate's: 8.0%
- Bachelor's: 18.1%
- Graduate+: 8.6%
Petersburg Rankings in Alaska
Explore Alaska Rankings
Other Cities in Petersburg Borough
| City | Population | Median Income | Poverty | Home Value |
|---|---|---|---|---|
| Kupreanof | 10 | N/A | 0.0% | N/A |
Cities Similar to Petersburg
These cities in the same state have comparable population and economic profiles.
| City | Population | Median Income | Home Value | Bachelor's+ | Poverty |
|---|---|---|---|---|---|
| Eielson AFB | 3,155 | $68,199 | N/A | 43.5% | 3.9% |
| Big Lake | 3,585 | $81,406 | $298,700 | 17.4% | 11.5% |
| Goldstream | 3,294 | $103,589 | $289,600 | 68.6% | 4.7% |
| Mill Bay | 3,654 | $88,580 | $463,200 | 36.8% | 9.0% |
| Seward | 2,794 | $85,481 | $338,100 | 43.0% | 9.3% |
Population Overview
Petersburg is a small community located in Alaska, within Petersburg Borough. The total population is 3,227. It ranks as the 36th most populous out of 326 Census-designated places in Alaska.
Age Demographics
The median age in Petersburg is 46.1 years. This is 29% higher than the state median of 35.8 years.
Economy, Income & Housing
The median household income in Petersburg is $71,369. This is 23% lower than the state median of $92,788. It is also 12% lower than the national median of $80,734. The poverty rate stands at 6.8%. This is 33% lower than the state poverty rate of 10.1%. The unemployment rate is 4.0%. This is 32% lower than the state rate of 5.9%. The median home value is $308,400. Housing costs are 13% lower than the state median of $352,900. The home-value-to-income ratio is 4.3x. 68.4% of occupied housing units are owner-occupied. This homeownership rate is 2% higher than the state average of 66.8%.
Race & Ethnicity
The largest racial or ethnic group in Petersburg is White (non-Hispanic), making up 62.2% of the population. Asian residents account for 13.1%. The Black or African American population (1.4%) is well below the state average of 2.9%. The Asian population is significantly higher than the state average (13.1% vs 6.3%).
Education
26.7% of residents aged 25 and older hold a bachelor's degree or higher. This is 16% lower than the state rate of 31.7%. Nationally, 35.7% of adults hold at least a bachelor's degree. The high school graduation rate (or equivalent) is 90.6%.
Data Sources & Methodology
All demographic data for Petersburg, Alaska is sourced from the U.S. Census Bureau's American Community Survey (ACS) 2020–2024 5-Year Estimates. The ACS collects data from approximately 3.5 million households annually and pools five years of responses so that even small communities can be measured, though the margin of error widens as the population falls. Comparisons are made against Alaska state averages and national averages calculated from the same dataset. Rankings reflect the city's position among all 326 Census-designated places in Alaska. Read more about how these figures are produced on our methodology page, or visit data.census.gov for official data.
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Frequently Asked Questions
What is the population of Petersburg, Alaska?
Petersburg, Alaska has a population of 3,227 according to the most recent U.S. Census ACS 5-Year Estimates.
What is the median household income in Petersburg, AK?
The median household income in Petersburg is $71,369, which is 12% lower than the national median of $80,734.
What is the poverty rate in Petersburg, AK?
The poverty rate in Petersburg is 6.8%. This means approximately 211 residents live below the federal poverty line.
What is the racial makeup of Petersburg, Alaska?
Petersburg's population is 62.2% White, 1.4% Black, 8.6% Hispanic/Latino, and 13.1% Asian.
What is the median home value in Petersburg, AK?
The median home value in Petersburg is $308,400. The home-value-to-income ratio is 4.3x.
How educated is Petersburg, Alaska?
26.7% of adults (25+) in Petersburg hold a bachelor's degree or higher, and 8.6% hold a graduate or professional degree.