Index, WA demographics:
population, income, and more

Total population
173
5.5% year-over-year change
Median household income
$/yr
% year-over-year change
Housing units
89
3.5% year-over-year change

Index population

How many people live in Index

Index is home to 173 residents, according to the most recent Census data. Gender-wise, 53.2% of Index locals are male, and 46.8% are female.

Total population
173
5.5% year-over-year change
Gender ratio
Male
53.2%
92
Female
46.8%
81
Value Percent YoY change
Male 92 53.2% 9.5%
Female 81 46.8% 1.2%
A higher population often means more rental variety and livelier areas. The gender balance—how many men live here compared to women—can reveal a lot about the community and the lifestyles of its residents. Use this info to get a sense of the area's pace and personality.

Age demographics

The median age in Index is 45, with the population distributed as follows: about 15% are children under 15, then 8.7% are in the 15 to 24 age group. Adults between 25 and 44 make up 23.1% of the population, while another 24.9% fall into the 45 to 64 bracket. Finally, around 28.3% are 65 or older.

Median age
45.4
Age breakdown
Under 15
15%
15 to 24
8.7%
25 to 44
23.1%
45 to 64
24.9%
Over 65
28.3%
Value Percent YoY change
Under 15 26 15% 8.3%
15 to 24 15 8.7% 87.5%
25 to 44 40 23.1% 0.0%
45 to 64 43 24.9% 22.9%
Over 65 49 28.3% -14.0%
The age composition helps you get insight into who lives in the area. A younger population might mean a more active, fast-paced vibe, while an older one could suggest a quieter, slower lifestyle. If there's a balanced makeup, you’re likely to find a variety of services, housing types, and community spaces that cater to different life stages.

Racial makeup

In Index, 97.1% of the population are US-born citizens, while 2.9% have gained naturalized citizenship.

Citizenship
U.S.-born citizens
97.1%
Non-U.S.-born citizens
2.9%
Non-citizens
0%
Value Percent YoY change
U.S.-born citizens 168 97.1% 5.7%
Non-U.S.-born citizens 5 2.9% 0.0%
Racial breakdown
White
100%
Black or African American
0%
American Indian and Alaska Native
0%
Asian
0%
Native Hawaiian and other Pacific Islander
0%
Two or more races
0%
Other
0%
Value Percent
White 173 100%

Households in Index

A peek inside Index households

Index has 67 households, with an average of 3 members in each. Of these, 52.2% are families, while the remaining 47.8% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
67
8.1% year-over-year change
Average people per household
3
Non-family households
32
Family households
35
Value Percent YoY change
Non-family households 32 47.8% 45.5%
Family households 35 52.2% -12.5%
The mix between family and non-family households gives a glimpse into daily life. A higher percentage of families might mean more parks and schools, while more non-family setups can mean flexible housing and diverse living styles. For renters, this can signal what kinds of homes are common and can help you figure out if the area matches your lifestyle.

Housing in Index

The housing landscape of Index

Index's housing consists of 89 units, with 95.5% being detached single-family homes ideal for those wanting space. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 4.5% of the housing landscape.

Housing units
89
3.5% year-over-year change
Housing types
Value Percent
1 unit, detached 85 95.5%
Mobile home 4 4.5%
Homes built since 2020
0
% year-over-year change

The age of buildings in Index

In Index, the median construction year is 1947. About 42.7% of homes were built before the 1940s, with another 11.2% going up by 1949. Most development happened in the second half of the 20th century.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 38 42.7% 15.2%
Built between 1940 and 1949 10 11.2% -9.1%
Built between 1950 and 1959 7 7.9% -41.7%
Built between 1970 and 1979 12 13.5% -7.7%
Built between 1990 and 1999 13 14.6% 8.3%
Built between 2000 and 2009 4 4.5% N/A
Built between 2010 and 2019 5 5.6% 0.0%
As a renter, knowing when homes were built helps you understand the potential condition and design of rental units. Newer builds may have more contemporary layouts, while older homes can offer character or larger lots, depending on the area.

Index occupancy rates

Meanwhile, 24.7% of all homes on the local market sit vacant.

Occupied housing units
67
8.1% year-over-year change
Occupancy breakdown
Renter occupied
0
Owner occupied
67
Value Percent YoY
change
Owner occupied 67 100% 19.6%
Unoccupied housing units
24.7%
Unoccupied housing units refer to homes that are currently without residents—whether they're waiting for renters or owners, used seasonally, or simply unclaimed. A higher share of empty homes may mean more housing availability, while a low number can reflect a tighter market with more competition. This, along with the renter-vs.-owner mix, helps paint a clearer picture of what types of housing and services are likely to be available in the area.

Index housing costs

Median housing costs per month
$1,331/month
This figure sums up typical monthly housing costs for all households in the area. If you own, it includes mortgage payments in addition to property taxes, insurance and HOA fees. If you rent, it accounts for rent plus extras like utilities. It’s useful for seeing how local living expenses stack up compared to other places.

Education in Index

Index education at a glance

About 57.9% of the population in Index went to high school, while 20.7% pursued college studies. Another earned an associate degree and 4.3% hold a bachelor’s. Meanwhile, 9.3% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 11 7.9% 10.0%
High school diploma 81 57.9% -14.7%
College diploma 29 20.7% 31.8%
Bachelor's degree 6 4.3% N/A
Graduate degree 13 9.3% 0.0%
A community’s education mix can offer insights into the local economy and housing market. Higher levels of education often align with more job opportunities and stable incomes, which can increase demand for homes and influence both rent prices and rental availability.

Income in Index

How much people earn in Index

The average annual household income in Index was $98,482 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +2% change from the previous year.

Average household income in Index
$98,482/year
2.0% year-over-year change

Index income by age

Those with someone between 45 and 64 in charge, often well established professionally, earn $146,071 overall. Overall, 86.7% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
45 - 64 $146,071 2.3%
Over 65 $39,038 -1.1%
Above poverty level
143
Below poverty level
22
Value Percent YoY
change
Above poverty level 143 86.7% -1.4%
Below poverty level 22 13.3% 15.8%

Average renter income in Index

To get a better sense of what renters earn on average in Index, their median household income was $14,135 according to 2022 Census data.

Renter median household income
$14,135
Rent-to-income ratio
0%
Understanding the rent-to-income ratio can help renters gauge if local housing costs align with their earnings. A ratio under 30% usually signals affordability, while exceeding this mark means rent is taking a larger-than-recommended bite out of income. That could make it harder for you to cover other costs like transportation, healthcare, or child care.

Employment in Index

Workforce and job types in Index

The job market in Index is powered by 76 working residents, spread across a range of industries and roles. 57.9% of the working population are employed in professional or administrative positions, while 42.1% are in hands-on or service-based jobs.

Workforce demographics

Working population
76
7.0% year-over-year change
White collar
44
Blue collar
32
Value Percent YoY change
White collar 44 57.9% 18.9%
Blue collar 32 42.1% -5.9%
Employer type
Self employees
0%
Private companies
81.6%
Governmental workers
18.4%
Not for profit companies
0%
Value Percent YoY change
Private companies 62 81.6% 6.9%
Governmental workers 14 18.4% 100.0%

Transportation in Index

How people get around in Index

Commuting methods vary: 91.3% of residents travel by personal vehicle and 8.7% prefer to walk, while the remaining share relies on public transit or on two wheelers to get from A to B.

Means of transportation
Value Percent YoY change
Car 63 91.3% 23.5%
Walk 6 8.7% 0.0%
Understanding how locals get to work can help you plan your own routine. High car usage might mean you’ll need a vehicle, while strong public transit or walkability could save you the hassle. Commute times also play a big role in quality of life—shorter trips can give you more time for the things you enjoy.

What is the median and average household income in Index by zipcode?

Zipcode Population Number of households Median income Average income
98256 368 156 $94,375 $97,076

Explore more communities

FAQs about Index demographics 

What is the total population of Index?

Index has a total population of 173 residents, according to the latest release from the U.S. Census Bureau: the 2019-2023 American Community Survey (ACS) 5-year estimates. This figure changed by +5.5% compared to a year ago.

What is the gender ratio in Index?

The gender ratio in Index is as follows:
  • 53.2% males (92 residents)
  • 46.8% females (81 residents)

What is the median age in Index?

The median age in Index is 45.4.

What is the age distribution of the population in Index?

The age distribution in Index is as follows:
  • Under 15: 15% (26 residents)
  • Ages 15-24: 8.7% (15 residents)
  • Ages 25-44: 23.1% (40 residents)
  • Ages 45-64: 24.9% (43 residents)
  • Over 65: 28.3% (49 residents)

What is the racial and ethnic makeup of Index?

The racial and ethnic makeup of Index is as follows:
  • White: 100% (173 residents)
  • Black or African American: 0% (0 residents)
  • American Indian and Alaska Native: 0% (0 residents)
  • Asian: 0% (0 residents)
  • Native Hawaiian and Other Pacific Islander: 0% (0 residents)
  • Two or More Races: 0% (0 residents)
  • Other: 0% (0 residents)

What percentage of the population in Index are U.S.-born citizens?

U.S.-born citizens represent 97.1% of the population in Index.

How many housing units are there in Index?

There are 89 housing units in Index, reflecting a +3.5% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Index and what is the average household size?

Index has a total of 67 households, with an average of 3 people in each.

What is the job market overview for Index?

Here’s a detailed breakdown of the local job market:

Job types:
  • White-collar workers: 57.9% (44 residents)
  • Blue-collar workers: 42.1% (32 residents)

Places of employment:
  • Self-employed: 0% (0 residents)
  • Private companies: 81.6% (62 residents)
  • Governmental workers: 18.4% (14 residents)
  • Not-for-profit companies: 0% (0 residents)

Data source & methodology

The demographic data on this page was sourced from the latest U.S. Census Bureau release—the 2019–2023 American Community Survey (ACS) 5-year estimates.

The information, issued annually, is compiled and published by the Point2Homes Research Team as soon as new data becomes available.

No representation, guarantee, or warranty is made concerning the accuracy or completeness of modified or aggregated information for particular areas.

Page last updated: September 2025