Petersburg County Demographics

A map of Petersburg County's Population by Race

Petersburg County, Alaska had a population of 3,398 in 2020. It was 71.9% White, 1.4% Black, 3.4% Asian, 4.8% Hispanic, 7.8% Native American/Other, and 10.7% Multiracial. This map presents the population of Petersburg County, with one dot drawn for each person counted in the 2020 Census, color-coded by race.

Petersburg County is the 21st most populous county of the 30 counties in Alaska.

Petersburg County's White Population

2,444 residents of Petersburg County identify as White, or 71.9%. This makes the White share of the population of Petersburg County larger than the White share of the population of Alaska (57.5% White). Of the 30 counties in Alaska, Petersburg County is ranked #7 in terms of White residents as a share of the population.

Petersburg County is more White than neighboring Wrangell County (63% White), Prince of Wales-Hyder County (41.2% White), Juneau County (61% White), Sitka County (59.7% White), and Ketchikan Gateway County (58.9% White).

Petersburg County's Black Population

46 residents of Petersburg County identify as Black, or 1.4%. This makes the Black share of the population of Petersburg County roughly similar to the Black share of the population of Alaska (2.8% Black). Of the 30 counties in Alaska, Petersburg County is ranked #6 in terms of Black residents as a share of the population.

Petersburg County is more Black than neighboring Wrangell County (0% Black), Prince of Wales-Hyder County (0.4% Black), Juneau County (1% Black), Sitka County (0.4% Black), and Ketchikan Gateway County (0.7% Black).

Petersburg County's Asian Population

117 residents of Petersburg County identify as Asian, or 3.4%. This makes the Asian share of the population of Petersburg County roughly similar to the Asian share of the population of Alaska (5.9% Asian). Of the 30 counties in Alaska, Petersburg County is ranked #11 in terms of Asian residents as a share of the population.

Petersburg County is more Asian than neighboring Wrangell County (1.2% Asian), and Prince of Wales-Hyder County (0.4% Asian). Petersburg County is less Asian than neighboring Juneau County (6.5% Asian), Sitka County (6.8% Asian), and Ketchikan Gateway County (8% Asian).

Petersburg County's Hispanic Population

164 residents of Petersburg County identify as Hispanic, or 4.8%. This makes the Hispanic share of the population of Petersburg County roughly similar to the Hispanic share of the population of Alaska (6.8% Hispanic). Of the 30 counties in Alaska, Petersburg County is ranked #14 in terms of Hispanic residents as a share of the population.

Petersburg County is more Hispanic than neighboring Wrangell County (3.6% Hispanic), Prince of Wales-Hyder County (2.8% Hispanic), and Ketchikan Gateway County (4.7% Hispanic). Petersburg County is less Hispanic than neighboring Juneau County (6.4% Hispanic), and Sitka County (5.9% Hispanic).

Petersburg County's Native American/Other Population

264 residents of Petersburg County identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other, or 7.8%. This makes the Native American/Other share of the population of Petersburg County slightly less than the Native American/Other share of the population of Alaska (17.2% Native American/Other). Of the 30 counties in Alaska, Petersburg County is ranked #27 in terms of Native American/Other residents as a share of the population.

Petersburg County is less Native American/Other than neighboring Wrangell County (17.9% Native American/Other), Prince of Wales-Hyder County (44.8% Native American/Other), Juneau County (12.6% Native American/Other), Sitka County (15.1% Native American/Other), and Ketchikan Gateway County (17.1% Native American/Other).

Petersburg County's Multiracial Population

363 residents of Petersburg County identify as Multiracial, or 10.7%. This makes the Multiracial share of the population of Petersburg County roughly similar to the Multiracial share of the population of Alaska (9.8% Multiracial). Of the 30 counties in Alaska, Petersburg County is ranked #7 in terms of Multiracial residents as a share of the population.

Petersburg County is more Multiracial than neighboring Prince of Wales-Hyder County (10.5% Multiracial), and Ketchikan Gateway County (10.6% Multiracial). Petersburg County is less Multiracial than neighboring Wrangell County (14.3% Multiracial), Juneau County (12.5% Multiracial), and Sitka County (12.1% Multiracial).

Source: 2020 Census State Redistricting Data and Census TIGER/Line Shapefiles.