Index Flag

Index

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

Index is a town located in Snohomish County, Washington. Index has a 2026 population of 163. Index is currently growing at a rate of 1.24% annually and its population has increased by 5.84% since the most recent census, which recorded a population of 154 in 2020.

The median age in Index is 45.4 years: 52.4 years for males, and 40.8 years for females. For every 100 females there are 113.6 males.

163
Total Population
710
Density (mi²)
2 1.24%
Growth

Index Population

Index Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
202616321.24%
202516110.63%
202416021.27%
202315831.94%
202215521.31%
2021153-1-0.65%
202015400%
201921120.96%
201820931.46%
201720652.49%
201620152.55%
201519652.62%
201419152.69%
201318642.2%
201218221.11%
201118021.12%
201017600%

Median Age

Overall: 45.4 years
Female: 40.8 years
Male: 52.4 years

Index Adults

There are 140 adults, (49 of whom are seniors) in Index.

Sex Ratio

Female: 81 (46.8%)
Male: 92 (53.2%)

Demographics

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

Population by Race

Race
Population ↓
Percentage (of total)
White173100%
Race
Population ↓
Percentage (of total)
White173100%

Index Marital Status

Nearby Cities

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)