Population & Household section gives reader an outlook. of general population profile, structure, and outlook.
Population Trend
Petersburg Borough, AK, is experiencing a notable demographic shift, with a population CAGR of -1.07% over the past 13 years, contrasting with Alaska's overall growth rate of 0.51%. The borough has a median age of 50.1, significantly higher than the state median of 35.3, indicating an aging population. With 25% of residents over 65, Petersburg has a high old-age dependency ratio of 43.9, compared to the state’s 20.4. The sex ratio of 96.3 suggests a slight female majority, which is lower than the state average of 111.1, reflecting unique local demographic trends.
Total Population
3374
Sex Ratio
96.3 %
Population Growth (2021-2022)
0.2 %
Population CAGR (2010-2022)
-1.07 %
Population Growth Rate (%)
Source: Census.gov
Age Structure
Dependency Rate
75.4 %
Median Age
50.1 y.o.
% of Population > 65 y.o.
25 %
Active Aging Index
172.9 %
Old Dependency Rate
43.9 %
Young Dependency Rate
31.6 %
Age Structure (%)
Source: Census.gov
Population Structure
Source: Census.gov
Household Status
Petersburg Borough, AK, with a total of 1,254 households, exhibits a unique demographic profile compared to other counties in Alaska. The borough has a relatively high percentage of households with elderly residents (42.7%), significantly above the state average of 26%. The average household size is 2.59, slightly lower than the state average of 2.67, while the average family size is 3.15, which is comparable to the state average of 3.28. Notably, Petersburg has experienced a negative compound annual growth rate (CAGR) of -1.8%, contrasting with the overall state growth rate of 0.53%. This decline in household growth, despite a 3.55% increase over the past year, suggests potential demographic challenges ahead, particularly in retaining younger populations compared to more rapidly growing areas like Matanuska-Susitna Borough.
Total Households
1254
Married-couple Household
714
Household CAGR (2010-2022)
-1.8 %
Household Growth (2021-2022)
3.55 %
Average Household Size
2.59 p
Average Family Size
3.15 p
Household with Children (%)
26.2 %
Household with Elder 65+ (%)
42.7 %
Household Size
Source: Census.gov
Household Structure
Source: Census.gov
Marriage
Never Married
25.5 %
Now Married
60 %
Widowed
6.1 %
Divorced
8.5 %
Marriage Status
Source: Census.gov
Marriage Status Breakdown
Source: Census.gov | S1201
Cultures
*Culture section contains several components: races, education, marriage and other factors.
Racial Profiiles
Petersburg Borough, AK, exhibits a diverse demographic profile, with a single race percentage of 88.7%, slightly above the state average of 88.7% and lower than the national average of 91.2%. The Hispanic population stands at 9.1%, which is notably higher than Alaska's 7.5% but lower than the national figure of 18.7%. Non-white residents comprise 42.3%, indicating a significant level of diversity compared to other Alaskan counties, such as Kenai Peninsula Borough (20.4%) and Matanuska-Susitna Borough (20.8%). The Asian population is particularly prominent at 17.8%, reflecting unique cultural influences in the region.
One Race
88.7 %
Two or More Races
11.3 %
Non-White
42.3 %
Hispanic (Overlapping)
9.1 %
White
1948
Black
39
Asian
602
Native American
268
Race Structure (%)
Source: Census.gov
Racial Profile Breakdown
Source: Census.gov
Place of Birth
Petersburg Borough, AK, exhibits a unique demographic profile with 79.2% of its population born in the U.S., significantly lower than the state average of 92.1% and the national average of 86.3%. Notably, 20.8% of residents are foreign-born, a figure that surpasses both state (7.9%) and national (13.7%) levels, indicating a higher degree of diversity. Among the foreign-born, a substantial 61.2% are naturalized citizens. This trend highlights Petersburg's distinctiveness within Alaska, where most counties have lower percentages of foreign-born residents, suggesting a more multicultural community.
Native US Citizen
1948
Native US Citizen (%)
42.3 %
Born in Alaska (%)
33.7 %
Born in Other State (%)
43.9 %
Foreign Born (%)
20.8 %
Naturalized (% of Foreign Born)
61.2 %
Place of Birth Changes (2010-2022)
Source: Census.gov
Birthplace Breakdown (Outside of US)
Source: Census.gov
Migration
-
Migration Inflow (% of Population)
11.8 %
From Different County (% of Inflow)
36.4 %
From Different State (% of Inflow)
56.6 %
From Different Country (% of Inflow)
7 %
%
Source: Census.gov
Religion
Number of Congregations
13
Number of Adherents
1184
Adherents (% of Total Population)
35.1 %
Christian (% of Total Population)
28.4 %
Religion Breakdown
Source: Census.gov
Education Attainment
Petersburg Borough, AK, shows a 24.8% bachelor's degree attainment among residents aged 25 and older, slightly below Alaska's state average of 30.7% and significantly lower than Anchorage Municipality's 37%. The median earnings for this demographic in Petersburg stand at $35,766, which is notably lower than the state median of $54,606 and the national median of $48,747. However, the borough's 53.6% enrollment in STEM fields among degree holders is promising, indicating a focus on high-demand sectors. Overall, Petersburg faces challenges in educational attainment and earnings compared to larger Alaskan regions.