Three Lakes, WA Profile: Facts & Data


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Three Lakes, Washington - Basic Facts

The Three Lakes Census Designated Place had a population of 3,728 as of July 1, 2020. Three Lakes ranks in the lower quartile for Population Density and Diversity Index when compared to the other cities, towns and Census Designated Places (CDPs) in Washington. See peer rankings below.

The primary coordinate point for Three Lakes is located at latitude 47.9448 and longitude -122.0115 in Snohomish County. The formal boundaries for the Three Lakes Census Designated Place encompass a land area of 11.67 sq. miles and a water area of 0.4 sq. miles. Snohomish County is in the Pacific time zone (GMT -8). The elevation is 486 feet.

The Three Lakes Census Designated Place (GNIS ID: 2409314) has a U1 Census Class Code which indicates a census designated place with 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 Three Lakes Census Designated Place is located within Snohomish Division of Snohomish County.


Three Lakes, WA Data & Demographics (As of July 1, 2020)


Total Population 3,728 (100%)
Population in Households 3,728 (100.0%)
Population in Families 3,230 (86.6%)
Population in Group Quarters1 0
Population Density 320
Diversity Index2 24


Median Household Income $129,638
Average Household Income $157,874
% of Income for Mortgage4 18%
Per Capita Income $57,826
Wealth Index5 258


Total HU (Housing Units) 1,463 (100%)
Owner Occupied HU 1,237 (84.6%)
Renter Occupied HU 129 ( 8.8%)
Vacant Housing Units 96 ( 6.6%)
Median Home Value $551,836
Average Home Value $593,376
Housing Affordability Index3 138


Total Households 1,367
Average Household Size 2.73
Family Households 1,062
Average Family Size 3
  1. 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.
  2. 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.
  3. 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.
  4. 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).
  5. 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.


2010-2020 2020-2025
Population 1.55% 1.49%
Households 1.52% 1.49%
Families 1.5% 1.48%
Median Household Income   2.55%
Per Capita Income   2.16%
Owner Occupied HU   1.57%


Three Lakes, WA - Peer Comparisons by Rank and Percentile

The table below compares Three Lakes to the other 625 incorporated cities, towns and CDPs in Washington by rank and percentile using July 1, 2020 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.

Variable Description Rank Percentile
Total Population # 231 63rd
Population Density # 486 22nd
Median Household Income # 24 96th
Housing Affordability Index # 364 58th
Per Capita Income # 39 94th
Diversity Index # 516 18th

Additional comparisons and rankings can be made with a VERY EASY TO USE Washington Census Data Comparison Tool.

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