| Official Name: | Lake Ketchum, Washington |
| Settlement Type: | CDP |
| Mapsize: | 250px |
| Subdivision Type: | Country |
| Subdivision Name: | United States |
| Subdivision Type1: | State |
| Subdivision Name1: | Washington |
| Subdivision Type2: | County |
| Subdivision Name2: | Snohomish |
| Unit Pref: | Imperial |
| Area Total Km2: | 8.1 |
| Area Land Km2: | 8.1 |
| Area Water Km2: | 0.1 |
| Area Total Sq Mi: | 3.1 |
| Area Land Sq Mi: | 3.1 |
| Area Water Sq Mi: | 0.0 |
| Population As Of: | 2020 |
| Population Total: | 1268 |
| Population Density Km2: | auto |
| Population Density Sq Mi: | auto |
| Timezone: | Pacific (PST) |
| Utc Offset: | -8 |
| Timezone Dst: | PDT |
| Utc Offset Dst: | -7 |
| Elevation M: | 70 |
| Elevation Ft: | 230 |
| Coordinates: | 48.2847°N -122.3425°W |
| Postal Code Type: | ZIP code |
| Postal Code: | 98292[1] |
| Area Code: | 360 |
| Blank Name: | FIPS code |
| Blank Info: | 53-37415[2] |
| Blank1 Name: | GNIS feature ID |
| Blank1 Info: | 1852945[3] |
Lake Ketchum is a census-designated place (CDP) in Snohomish County, Washington, United States. The population was 1,268 at the 2020 census,[4] up from 930 at the 2010 census.
Lake Ketchum is located at 48.2847°N -122.3425°W (48.284778, -122.342511).[5]
According to the United States Census Bureau, the CDP has a total area of 3.1mi2, of which, 3.1mi2 of it is land and 0.04mi2 of it (0.96%) is water.
As of the census of 2000, there were 1,173 people, 406 households, and 310 families living in the CDP. The population density was 377.4/mi2. There were 431 housing units at an average density of 138.7/mi2. The racial makeup of the CDP was 95.65% White, 0.17% African American, 1.28% Native American, 0.34% Asian, 1.36% from other races, and 1.19% from two or more races. Hispanic or Latino of any race were 3.50% of the population.
There were 406 households, out of which 39.4% had children under the age of 18 living with them, 63.8% were married couples living together, 8.4% had a female householder with no husband present, and 23.6% were non-families. 17.7% of all households were made up of individuals, and 4.7% had someone living alone who was 65 years of age or older. The average household size was 2.89 and the average family size was 3.27.
In the CDP, the age distribution of the population shows 29.5% under the age of 18, 7.4% from 18 to 24, 31.2% from 25 to 44, 23.6% from 45 to 64, and 8.3% who were 65 years of age or older. The median age was 36 years. For every 100 females, there were 106.5 males. For every 100 females age 18 and over, there were 99.3 males.
The median income for a household in the CDP was $60,029, and the median income for a family was $62,148. Males had a median income of $38,235 versus $28,047 for females. The per capita income for the CDP was $19,538. About 3.2% of families and 10.2% of the population were below the poverty line, including 7.7% of those under age 18 and 6.8% of those age 65 or over.