Index Flag

Index

County Seat:
No
Area (mi²):
0.23
State:
Washington

Index is a town located in Snohomish County, Washington. Index has a 2025 population of 158. Index is currently growing at a rate of 0.64% annually and its population has increased by 1.94% since the most recent census, which recorded a population of 155 in 2020.

The average household income in Index is $96,519 with a poverty rate of 11.59%.The median age in Index is 48.5 years: 61.6 years for males, and 43 years for females.

158
Total Population
688
Density (mi²)
1 0.64%
Growth

Index Population

Index Population

Data after 2023 is projected based on recent change

Demographics

The racial composition of Index includes 100% White, and smaller percentages for and multiracial populations.

Population by Race

Race
Population
Percentage (of total)
White164100%

Index Marital Status

OverallMalesFemales0%10%20%30%40%50%60%70%80%90%100%

Married

Widowed

Divorced

Separated

Never Married

Economics and Income Statistics

Index's average per capita income is $0. Household income levels show a median of $0. The poverty rate stands at 11.59%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median
Mean
Married Families$121,023-
Families$120,682$129,778
Households-$96,519
Non Families-$25,232

$0

Average Income

$0

Median Household Income

11.59%

Poverty Rate

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)