Marietta-Alderwood, WA Demographics

A map of Marietta-Alderwood's Population by Race

Race	2024 Pop	2020 Pop	2024 %	2020 %
White	2,883	2,888	76.8%	71.9%
Multiracial	431	269	11.5%	6.7%
Asian	251	174	6.7%	4.3%
Hispanic	107	471	2.9%	11.7%
Native American/Other	74	154	2.0%	3.8%
Black	8	59	0.2%	1.5%

Marietta-Alderwood, Washington has an estimated population of 3,754, a decrease from the 4,015 recorded in the 2020 Census. The population is 76.8% White, 11.5% Multiracial, 6.7% Asian, 2.9% Hispanic, 2.0% Native American/Other, and 0.2% Black. This demographic dot map shows the population of Marietta-Alderwood, with one dot drawn for each person counted by the Census, color-coded by race.

Marietta-Alderwood has become considerably less racially diverse since the 2020 Census. It is considerably less diverse than Washington overall. Demographers use a diversity index to measure the probability that two randomly selected individuals belong to different racial or ethnic groups. In Marietta-Alderwood, that probability was 46.1% in 2020 and 39.1% in the most recent ACS estimates.

Marietta-Alderwood is ranked the 228th most populous place in Washington, out of 639 places. This ranking is based on the Census definition of a place, which includes incorporated places like cities, towns, and villages, as well as unincorporated census-designated places (CDPs). Marietta-Alderwood was ranked the 221st most populous place in the 2020 Census.

Marietta-Alderwood's White Population

2,883 residents of Marietta-Alderwood, or 76.8% of the population, identify as White. The share of White residents in Marietta-Alderwood is considerably higher than in Washington overall, where 63.1% of the population is White. Marietta-Alderwood ranks 411th statewide in terms of White residents as a share of the population, out of 639 places.

Since the 2020 Census, Marietta-Alderwood's White population has remained roughly the same. White residents' share of Marietta-Alderwood's population has increased from 71.9% to 76.8%.

Marietta-Alderwood is more White than neighboring Ferndale (70% White), and Bellingham (76.2% White). Marietta-Alderwood is less White than neighboring Custer (79% White), Geneva (86.9% White), and Lynden (77.2% White).

Marietta-Alderwood's Black Population

8 residents of Marietta-Alderwood, or 0.2% of the population, identify as Black. The share of Black residents in Marietta-Alderwood is slightly lower than in Washington overall, where 3.8% of the population is Black. Marietta-Alderwood ranks 152nd statewide in terms of Black residents as a share of the population, out of 639 places.

Since the 2020 Census, Marietta-Alderwood's Black population has declined by an estimated 86.4%. Black residents' share of Marietta-Alderwood's population has decreased from 1.5% to 0.2%.

Marietta-Alderwood is more Black than neighboring Custer (0% Black), and Geneva (0% Black). Marietta-Alderwood is less Black than neighboring Ferndale (0.6% Black), Bellingham (1.3% Black), and Lynden (0.3% Black).

Marietta-Alderwood's Asian Population

251 residents of Marietta-Alderwood, or 6.7% of the population, identify as Asian. The share of Asian residents in Marietta-Alderwood is slightly lower than in Washington overall, where 9.7% of the population is Asian. Marietta-Alderwood ranks 129th statewide in terms of Asian residents as a share of the population, out of 639 places.

Since the 2020 Census, Marietta-Alderwood's Asian population has grown by an estimated 44.3%. Asian residents' share of Marietta-Alderwood's population has increased from 4.3% to 6.7%.

Marietta-Alderwood is more Asian than neighboring Bellingham (5.2% Asian), Geneva (0% Asian), and Lynden (2.3% Asian). Marietta-Alderwood is less Asian than neighboring Ferndale (8.4% Asian), and Custer (7.8% Asian).

Marietta-Alderwood's Hispanic Population

107 residents of Marietta-Alderwood, or 2.9% of the population, identify as Hispanic. The share of Hispanic residents in Marietta-Alderwood is considerably lower than in Washington overall, where 14.4% of the population is Hispanic. Marietta-Alderwood ranks 197th statewide in terms of Hispanic residents as a share of the population, out of 639 places.

Since the 2020 Census, Marietta-Alderwood's Hispanic population has declined by an estimated 77.3%. Hispanic residents' share of Marietta-Alderwood's population has decreased from 11.7% to 2.9%.

Marietta-Alderwood is less Hispanic than neighboring Ferndale (12.6% Hispanic), Bellingham (10.2% Hispanic), Custer (9.2% Hispanic), Geneva (3% Hispanic), and Lynden (13.9% Hispanic).

Marietta-Alderwood's Native American/Other Population

74 residents of Marietta-Alderwood, or 2.0% of the population, identify as American Indian/Alaska Native/Native Hawaiian/Pacific Islander/Other. The share of Native American/Other residents in Marietta-Alderwood is comparable to the share in Washington overall, where 2.1% of the population is Native American/Other. Marietta-Alderwood ranks 99th statewide in terms of Native American/Other residents as a share of the population, out of 639 places.

Since the 2020 Census, Marietta-Alderwood's Native American/Other population has declined by an estimated 51.9%. Native American/Other residents' share of Marietta-Alderwood's population has decreased from 3.8% to 2.0%.

Marietta-Alderwood is more Native American/Other than neighboring Ferndale (1.9% Native American/Other), Bellingham (0.9% Native American/Other), Custer (0% Native American/Other), Geneva (0.7% Native American/Other), and Lynden (0.5% Native American/Other).

Marietta-Alderwood's Multiracial Population

431 residents of Marietta-Alderwood, or 11.5% of the population, identify as Multiracial. The share of Multiracial residents in Marietta-Alderwood is slightly higher than in Washington overall, where 6.8% of the population is Multiracial. Marietta-Alderwood ranks 271st statewide in terms of Multiracial residents as a share of the population, out of 639 places.

Since the 2020 Census, Marietta-Alderwood's Multiracial population has grown by an estimated 60.2%. Multiracial residents' share of Marietta-Alderwood's population has increased from 6.7% to 11.5%.

Marietta-Alderwood is more Multiracial than neighboring Ferndale (6.6% Multiracial), Bellingham (6.2% Multiracial), Custer (4% Multiracial), Geneva (9.4% Multiracial), and Lynden (5.7% 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.