Petersburg Borough, Alaska

Petersburg Borough: borough in Alaska, United States

About

Petersburg Borough is a county located in the U.S. state of Alaska. As of the 2010 census, the population was 3,815 and a population density of 1 people per km². After 10 years in 2020 county had an estimated population of 3,296 inhabitants. Its county seat is Petersburg. The county was created 13 years ago in 2012.

Petersburg Borough locator map
Location of Petersburg Borough on Alaska map.

County Snapshot

Petersburg Borough at a glance

Petersburg Borough currently has 2 quality-checked populated place pages linked on MapSof, making it easier to jump from the county overview into local city pages.

Browse county places

Mapped populated places

2

These counts use a stricter populated-place filter so the main lists stay focused on real city and town pages.

Largest city

Kake

Population 538

Top linked places

Quick Facts about Petersburg Borough

Population 3,296 (2020)
Country United States of America
State Alaska (United States)
Different from Petersburg, Petersburg, Petersburg Census Area
Area 3829 km2
Latitude & Longitude 56.7653,-133.1931
Named for Petersburg
Capital Petersburg
Establishment January 01, 2013
Time Zone Alaska Time Zone
Local time 02:06:20 (19th April 2026)
Density 1 Pop. per km² as of 2020
Population growth -15.75% (2010-2020)
Weather 37℉ Light Rain Likely 7-days weather
Wrangell Narrows MG 2273HDRa '10414564683' image
Wrangell Narrows MG 2273HDRa '10414564683' image

Geography

Petersburg Borough is located at 56°45'55"N 133°11'35"W (56.7652900, -133.1931300).

Petersburg Borough map

Click "full screen" full screen map icon to open full mode. View satellite images

The largest city of Petersburg Borough is Kake with a population of 538. Other cities include and Kupreanof population 27. See all Petersburg Borough cities & populated places.

Petersburg Borough Populated Places

Cities, towns, neighborhoods & other populated places in Petersburg Borough.

City Name Population Title
Kake 538 City in Prince of Wales-Hyder Census Area, Alaska, United States
Kupreanof 27 City in Petersburg Borough, Alaska, United States

Weather

37°F
Light Rain Likely
0 mph Saturday Night

Rain likely. Cloudy, with a low around 37.

7-Day Forecast

Official website of Petersburg Borough

Official Website

Demographics

According to census records, the population of Petersburg Borough decreased by 15.75% in 10 years.

Year Population % Change Method
2010 3,815 - census
2011 3,255 -17.2% estimation process
2012 3,277 0.67% estimation process
2013 3,291 0.43% estimation process
2014 3,261 -0.92% estimation process
2015 3,253 -0.25% estimation process
2016 3,260 0.21% estimation process
2017 3,264 0.12% estimation process
2018 3,244 -0.62% estimation process
2019 3,266 0.67% estimation process
2020 3,296 0.91% estimation process
Petersburg

Alaska Other Counties (more counties)

County Name Population Title
Anchorage 294,356 The most populous city in Alaska and the center of the Anchorage metropolitan area.
Anchorage Municipality 287,095 City in Alaska, United States
Matanuska-Susitna Borough 110,213 Borough in Alaska, United States
Fairbanks North Star Borough 95,651 Borough in Alaska, United States
Kenai Peninsula Borough 59,414 Borough in Alaska, United States
Juneau 31,974 City in and state capital of Alaska, United States
Juneau City and Borough 31,849 City in and state capital of Alaska, United States
Fairbanks 30,696 City in Alaska, USA
Eagle River 24,793 Community in Alaska, USA
Badger 19,482 Census-designated place in Fairbanks North Star Borough, Alaska
Bethel Census Area 18,437 Census area in Alaska, United States
Ketchikan Gateway Borough 13,747 Borough in Alaska, United States
Kodiak Island Borough 12,992 Borough in Alaska, United States
College 12,964 Census-designated place in Alaska, United States
Wasilla 11,099 City in Alaska, USA
Nome Census Area 9,909 Census area in Alaska, United States