Issaquah, WA Profile: Facts & Data


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Issaquah, Washington - Basic Facts

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The City of Issaquah had a population of 41,032 as of July 1, 2022. Issaquah ranks in the upper 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 Issaquah is located at latitude 47.5301 and longitude -122.0326 in King County. The formal boundaries for the City of Issaquah encompass a land area of 11.4 sq. miles and a water area of 0.02 sq. miles. King County is in the Pacific time zone (GMT -8). The elevation is 108 feet.

The City of Issaquah has a C1 Census Class Code which indicates an active incorporated place that does not serve as a county subdivision equivalent. It also has a Functional Status Code of "A" which identifies an active government providing primary general-purpose functions.

Washington is one of 20 states where Census County Divisions (CCDs) are used for statistical tracking of subdivisions within each county. The City of Issaquah is located within Issaquah Plateau Division of King County.

Alternate Unofficial Names for Issaquah: Englewood, Gilman, Isquah, Isquowh, Issquah, Squak, Squawk, Squowh.

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  1. Issaquah 2022 Demographic Data
  2. Growth Rates for Issaquah (Historical & 5-Year Forecast)
  3. Peer Comparisons (Rank and Percentile)
  1. Neighborhoods Demographics (Home Values, Household Income, etc.)
  2. Washington Research Tools (Easy Tools & Current Data)
  3. Washington Data Comparison Tool - 2022 Demographics

Issaquah, WA Data & Demographics (As of July 1, 2022)


Total Population 41,032 (100%)
Population in Households 40,590 (98.9%)
Population in Families 32,526 (79.3%)
Population in Group Quarters1 442 ( 1.1%)
Population Density 3,383
Diversity Index2 63


Median Household Income $147,075
Average Household Income $192,384
% of Income for Mortgage4 32%
Per Capita Income $77,191
Wealth Index5 182


Total HU (Housing Units) 17,634 (100%)
Owner Occupied HU 10,157 (57.6%)
Renter Occupied HU 6,629 (37.6%)
Vacant Housing Units 848 ( 4.8%)
Median Home Value $884,516
Average Home Value $946,114
Housing Affordability Index3 77


Total Households 16,786
Average Household Size 2.42
Family Households 10,848
Average Family Size 3.00
  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.


2020-2022 2022-2027
Population 1.08% 0.26%
Households 0.92% 0.14%
Families   0.30%
Median Household Income   2.32%
Per Capita Income   2.38%
Owner Occupied HU   0.80%

Issaquah, WA - Peer Comparisons by Rank and Percentile

The table below compares Issaquah to the other 639 incorporated cities, towns and CDPs in Washington by rank and percentile using July 1, 2022 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 # 31 95th
Population Density # 68 90th
Median Household Income # 35 95th
Housing Affordability Index # 139 22nd
Per Capita Income # 20 97th
Diversity Index # 146 77th

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

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