Petersburg
Census-designated place in Petersburg Borough, Alaska

Petersburg is an unincorporated community (census-designated place) in Petersburg Borough, Alaska, with 3,043 residents (2020 Census). It sits at 36 ft (11 m) above sea level. The nearest town is Kupreanof, 5.8 miles NW.
- 3,043residents (2020 Census)
- 36 ftelevation · 11 m
- 44.3 sq miland area · 114.7 km²
- 69 / sq mipopulation density
- 99833ZIP code
About Petersburg
Petersburg (Tlingit: Gántiyaakw Séedi) is a census-designated place (CDP) in and essentially the borough seat of Petersburg Borough, Alaska, United States. The population was 3,043 at the 2020 census, up from 2,948 in 2010. The town is the headquarters of the Petersburg Indian Association, a federally recognized tribe of Tlingit people.
The borough encompasses Petersburg and Kupreanof, plus mostly uninhabited areas stretching to the Canadian–American border and the southern boundary of the City and Borough of Juneau. While the city of Petersburg ceased to exist as a separate administrative entity (the borough assembly created a service area to assume operation of the former city's services), the tiny city of Kupreanof remains separate within the borough.
Text: Wikipedia · CC BY-SA 4.0
Petersburg weather: 7-day forecast
Loading the National Weather Service forecast…
Source: National Weather Service (NOAA).
Live webcams in Petersburg
Webcams: Windy.com
Living in Petersburg
- Median household income
- $71,369
- Median home value
- $308,400
- Median rent
- $1,082/mo
- Median age
- 46.1
Do you know Petersburg? Tell us about it
Help other travelers: share what makes Petersburg special. We review every message before publishing it.
Map of Petersburg
Tap any street on the map to see it in Street View below. Map: © OpenStreetMap contributors.
Petersburg Street View
Drag the image to look around and tap the arrows on the ground to move. If it says there is no imagery, tap a nearby street on the map above.
Open in Google Maps ›Petersburg, AK population
Petersburg had 3,043 residents in the 2020 Census.
| 2020 Census | 3,043 |
|---|---|
| Density | 69 per sq mi (27 per km²) |
Source: U.S. Census Bureau, Decennial Census.
Petersburg at a glance
| State | Alaska (AK) |
|---|---|
| County | Petersburg Borough |
| Type | Census-designated place |
| Population | 3,043 (2020) |
| Land area | 44.27 sq mi (114.7 km²) |
| Water area | 2.04 sq mi (5.27 km²) |
| Elevation | 36 ft (11 m) |
| Coordinates | 56.7552° N, 132.8765° W |
| ZIP code | 99833 |
| Official website | ci.petersburg.ak.us |
| Census code (GEOID) | 0260310 |
Sources: U.S. Census Bureau (Gazetteer, ZCTA), USGS GNIS, Wikidata.
Towns near Petersburg
- Kupreanof5.8 mi NW
- Point Baker39.8 mi SW
- Port Protection40.4 mi SW
- Kake41.7 mi W
- Whale Pass47.1 mi S
- Hobart Bay48.5 mi N
Straight-line distance between town centers.
Frequently asked questions about Petersburg
What county is Petersburg in?
Petersburg is in Petersburg Borough, Alaska.
What is the population of Petersburg, AK?
3,043 people lived in Petersburg at the 2020 Census.
What is the ZIP code of Petersburg, AK?
The ZIP code of Petersburg is 99833.
What is the elevation of Petersburg?
36 feet (11 m) above sea level.
What towns are near Petersburg?
Kupreanof (5.8 mi), Point Baker (39.8 mi), Port Protection (40.4 mi), Kake (41.7 mi), Whale Pass (47.1 mi).
Last updated: