Matanuska-Susitna County Demographics

A map of Matanuska-Susitna County's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	85,478	81,050	75.7%	75.7%
Multiracial	11,043	10,421	9.8%	9.7%
Native American/Other	7,261	7,792	6.4%	7.3%
Hispanic	6,074	5,244	5.4%	4.9%
Asian	1,849	1,515	1.6%	1.4%
Black	1,283	1,059	1.1%	1.0%

Matanuska-Susitna County, Alaska has an estimated population of 112,988, an increase from the 107,081 recorded in the 2020 Census. The population is 75.7% White, 9.8% Multiracial, 6.4% Native American/Other, 5.4% Hispanic, 1.6% Asian, and 1.1% Black. This demographic dot map shows the population of Matanuska-Susitna County, with one dot drawn for each person counted by the Census, color-coded by race.

Matanuska-Susitna is about as racially diverse as it was in the 2020 Census. It is considerably less diverse than Alaska overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Matanuska-Susitna County, that probability was 41.0% in 2020 and 41.1% in the most recent ACS estimates.

Matanuska-Susitna County is ranked the 2nd most populous county in Alaska, out of 30 counties. Matanuska-Susitna County was ranked the 2nd most populous county in the 2020 Census.

Matanuska-Susitna County's White Population

85,478 residents of Matanuska-Susitna County, or 75.7% of the population, identify as White. The share of White residents in Matanuska-Susitna County is significantly higher than in Alaska overall, where 57.7% of the population is White. Matanuska-Susitna County ranks 5th statewide in terms of White residents as a share of the population, out of 30 counties.

Since the 2020 Census, Matanuska-Susitna County's White population has grown by an estimated 5.5%. White residents' share of Matanuska-Susitna County's population has remained roughly unchanged at 75.7%.

Matanuska-Susitna County is more White than neighboring Anchorage Municipality County (54.2% White), Denali County (71.8% White), Yukon-Koyukuk Census Area County (21.6% White), and Chugach Census Area County (70.4% White). Matanuska-Susitna County is less White than neighboring Kenai Peninsula County (77.5% White).

Matanuska-Susitna County's Black Population

1,283 residents of Matanuska-Susitna County, or 1.1% of the population, identify as Black. The share of Black residents in Matanuska-Susitna County is comparable to the share in Alaska overall, where 2.9% of the population is Black. Matanuska-Susitna County ranks 9th statewide in terms of Black residents as a share of the population, out of 30 counties.

Since the 2020 Census, Matanuska-Susitna County's Black population has grown by an estimated 21.2%. Black residents' share of Matanuska-Susitna County's population has remained roughly unchanged at 1.1%.

Matanuska-Susitna County is more Black than neighboring Kenai Peninsula County (0.6% Black). Matanuska-Susitna County is less Black than neighboring Anchorage Municipality County (4.8% Black), Denali County (2.7% Black), Yukon-Koyukuk Census Area County (1.9% Black), and Chugach Census Area County (1.5% Black).

Matanuska-Susitna County's Asian Population

1,849 residents of Matanuska-Susitna County, or 1.6% of the population, identify as Asian. The share of Asian residents in Matanuska-Susitna County is slightly lower than in Alaska overall, where 6.4% of the population is Asian. Matanuska-Susitna County ranks 14th statewide in terms of Asian residents as a share of the population, out of 30 counties.

Since the 2020 Census, Matanuska-Susitna County's Asian population has grown by an estimated 22.0%. Asian residents' share of Matanuska-Susitna County's population has remained roughly unchanged at 1.6%.

Matanuska-Susitna County is more Asian than neighboring Yukon-Koyukuk Census Area County (1.4% Asian). Matanuska-Susitna County is less Asian than neighboring Anchorage Municipality County (9.8% Asian), Denali County (2.2% Asian), Kenai Peninsula County (1.8% Asian), and Chugach Census Area County (5% Asian).

Matanuska-Susitna County's Hispanic Population

6,074 residents of Matanuska-Susitna County, or 5.4% of the population, identify as Hispanic. The share of Hispanic residents in Matanuska-Susitna County is comparable to the share in Alaska overall, where 7.3% of the population is Hispanic. Matanuska-Susitna County ranks 13th statewide in terms of Hispanic residents as a share of the population, out of 30 counties.

Since the 2020 Census, Matanuska-Susitna County's Hispanic population has grown by an estimated 15.8%. Hispanic residents' share of Matanuska-Susitna County's population has increased from 4.9% to 5.4%.

Matanuska-Susitna County is more Hispanic than neighboring Kenai Peninsula County (4.4% Hispanic), Yukon-Koyukuk Census Area County (2.2% Hispanic), and Chugach Census Area County (4.8% Hispanic). Matanuska-Susitna County is less Hispanic than neighboring Anchorage Municipality County (9.5% Hispanic), and Denali County (8.1% Hispanic).

Matanuska-Susitna County's Native American/Other Population

7,261 residents of Matanuska-Susitna County, or 6.4% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Matanuska-Susitna County is lower than in Alaska overall, where 15.5% of the population is Native American/Other. Matanuska-Susitna County ranks 28th statewide in terms of Native American/Other residents as a share of the population, out of 30 counties.

Since the 2020 Census, Matanuska-Susitna County's Native American/Other population has declined by an estimated 6.8%. Native American/Other residents' share of Matanuska-Susitna County's population has decreased from 7.3% to 6.4%.

Matanuska-Susitna County is more Native American/Other than neighboring Denali County (5.2% Native American/Other). Matanuska-Susitna County is less Native American/Other than neighboring Anchorage Municipality County (11% Native American/Other), Kenai Peninsula County (7.2% Native American/Other), Yukon-Koyukuk Census Area County (65.8% Native American/Other), and Chugach Census Area County (6.6% Native American/Other).

Matanuska-Susitna County's Multiracial Population

11,043 residents of Matanuska-Susitna County, or 9.8% of the population, identify as Multiracial. The share of Multiracial residents in Matanuska-Susitna County is comparable to the share in Alaska overall, where 10.3% of the population is Multiracial. Matanuska-Susitna County ranks 14th statewide in terms of Multiracial residents as a share of the population, out of 30 counties.

Since the 2020 Census, Matanuska-Susitna County's Multiracial population has grown by an estimated 6.0%. Multiracial residents' share of Matanuska-Susitna County's population has remained roughly unchanged at 9.8%.

Matanuska-Susitna County is more Multiracial than neighboring Kenai Peninsula County (8.4% Multiracial), and Yukon-Koyukuk Census Area County (7.1% Multiracial). Matanuska-Susitna County is less Multiracial than neighboring Anchorage Municipality County (10.7% Multiracial), Denali County (10% Multiracial), and Chugach Census Area County (11.7% Multiracial).

Sources: Most recent population estimates are from the 2020-2024 American Community Survey 5-Year Estimates. 2020 population counts and map data are from 2020 Census State Redistricting Data. Geographic data are from Census TIGER/Line Shapefiles.