Lake Morton-Berrydale, WA Profile: Facts & Data

The Lake Morton-Berrydale CDP⁽¹⁾ had a population of 10,687 as of July 1, 2025.

The Lake Morton-Berrydale 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 Lake Morton-Berrydale Census Designated Place is located within Enumclaw Plateau Division of King 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.

Lake Morton-Berrydale, WA Data & Demographics (As of July 1, 2025)

POPULATION
Total Population	10,687 (100%)
Population in Households	10,678 (99.9%)
Population in Families	9,081 (85.0%)
Population in Group Quarters¹	9 ( 0.1%)
Population Density	867
Diversity Index²	55


INCOME
Median Household Income	$133,259
Average Household Income	$174,780
% of Income for Mortgage⁴	35%
Per Capita Income	$61,430
Wealth Index⁵	193
Socioeconomic Status Index⁶	Moderate (55.2)

HOUSING
Total HU (Housing Units)	3,827 (100%)
Owner Occupied HU	3,376 (88.2%)
Renter Occupied HU	380 ( 9.9%)
Vacant Housing Units	71 ( 1.9%)
Median Home Value	$739,939
Average Home Value	$879,953
Housing Affordability Index³	70

HOUSEHOLDS
Total Households	3,756
Average Household Size	2.84
Family Households	2,966
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.

Lake Morton-Berrydale, WA - Peer Comparisons by Rank and Percentile

The table below compares Lake Morton-Berrydale to the other 639 incorporated cities, towns and CDPs in Washington by rank and percentile using July 1, 2025 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	0.38%	0.18%
Households	0.25%	-0.03%
Families		-0.15%
Median Household Income		3.01%
Per Capita Income		2.70%
Owner Occupied HU		0.15%

Variable Description	Rank	Percentile
Total Population	# 127	80th
Population Density	# 330	49th
Median Household Income	# 95	85th
Housing Affordability Index	# 402	63rd
Per Capita Income	# 106	84th
Diversity Index	# 237	63rd

Lake Morton-Berrydale, WA Profile: Facts & Data

Lake Morton-Berrydale, Washington - Basic Facts

Lake Morton-Berrydale, WA Data & Demographics (As of July 1, 2025)

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Lake Morton-Berrydale, WA - Peer Comparisons by Rank and Percentile

Lake Morton-Berrydale, WA - Most Popular Things to Do

Use HTL Address Research for a Washington Address and get...

Quick & Easy Ways to...

Washington Census Data Comparison Tool

King County