Marietta-Alderwood, WA Profile: Facts & Data

The Marietta-Alderwood CDP⁽¹⁾ had a population of 4,263 as of July 1, 2024.

The Marietta-Alderwood Census Designated Place has a U2 Census Class Code which indicates a census designated place without an official federally recognized name. It also has a Functional Status Code of "S" which identifies a statistical entity.

Washington is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The Marietta-Alderwood Census Designated Place is located within Bellingham Division of Whatcom County.

A Census Designated Place (CDP) is a statistical counterpart to a self-governing (incorporated) place such as a city, town, or village. A CDP is not a legal entity and has no governmental functions.

Marietta-Alderwood, WA Data & Demographics (As of July 1, 2024)

POPULATION
Total Population	4,263 (100%)
Population in Households	4,263 (100.0%)
Population in Families	2,859 (67.1%)
Population in Group Quarters¹	0
Population Density	733
Diversity Index²	59


INCOME
Median Household Income	$62,358
Average Household Income	$99,536
% of Income for Mortgage⁴	74%
Per Capita Income	$42,588
Wealth Index⁵	89
Socioeconomic Status Index⁶	Moderate (47.6)

HOUSING
Total HU (Housing Units)	1,894 (100%)
Owner Occupied HU	916 (48.4%)
Renter Occupied HU	908 (47.9%)
Vacant Housing Units	70 ( 3.7%)
Median Home Value	$739,020
Average Home Value	$794,828
Housing Affordability Index³	33

HOUSEHOLDS
Total Households	1,824
Average Household Size	2.34
Family Households	989
Average Family Size	3.00

NOTES

Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

Marietta-Alderwood, WA - Peer Comparisons by Rank and Percentile

The table below compares Marietta-Alderwood to the other 639 incorporated cities, towns and CDPs in Washington by rank and percentile using July 1, 2024 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

GROWTH RATE / YEAR	2020-2025	2025-2030
Population	1.15%	0.62%
Households	1.06%	0.70%
Families		0.82%
Median Household Income		4.54%
Per Capita Income		2.87%
Owner Occupied HU		2.13%

Variable Description	Rank	Percentile
Total Population	# 217	66th
Population Density	# 360	44th
Median Household Income	# 541	15th
Housing Affordability Index	# 66	10th
Per Capita Income	# 340	47th
Diversity Index	# 207	68th

Marietta-Alderwood, WA Profile: Facts & Data

Marietta-Alderwood, Washington - Basic Facts

Marietta-Alderwood, WA Data & Demographics (As of July 1, 2024)

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Marietta-Alderwood, WA - Peer Comparisons by Rank and Percentile

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