Nine Mile Falls, WA demographics:
population, income, and more

Total population
19,166
2.8% year-over-year change
Median household income
$93,812/yr
3.3% year-over-year change
Housing units
8,133
3.2% year-over-year change

Nine Mile Falls population

How many people live in Nine Mile Falls

Nine Mile Falls is home to 19,166 residents, according to the most recent Census data. Gender-wise, 49.6% of Nine Mile Falls locals are male, and 50.4% are female.

Total population
19,166
2.8% year-over-year change
Gender ratio
Male
49.6%
9,502
Female
50.4%
9,664
Value Percent YoY change
Male 9,502 49.6% 3.5%
Female 9,664 50.4% 2.1%
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 Nine Mile Falls is 44, with the population distributed as follows: about 17.1% are children under 15, then 11.1% are in the 15 to 24 age group. Adults between 25 and 44 make up 23.7% of the population, while another 28.4% fall into the 45 to 64 bracket. Finally, around 19.8% are 65 or older.

Median age
43.5
Age breakdown
Under 15
17.1%
15 to 24
11.1%
25 to 44
23.7%
45 to 64
28.4%
Over 65
19.8%
Value Percent YoY change
Under 15 3,286 17.1% 8.6%
15 to 24 2,122 11.1% 10.3%
25 to 44 4,534 23.7% 0.4%
45 to 64 5,437 28.4% 3.3%
Over 65 3,788 19.8% -3.0%
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 Nine Mile Falls, 91.3% of the population are US-born citizens, while 6.9% have gained naturalized citizenship. At the same time, 1.8% of residents are non-citizens. As for race, 86.7% of locals are Caucasian, 1.4% are African American and 2.1% have Asian roots. Another 1% are Indigenous American, 0.7% are Pacific Islanders, while 2% identify as another race. There’s also a share of 6.1% that includes residents with two or more races.

Citizenship
U.S.-born citizens
91.3%
Non-U.S.-born citizens
6.9%
Non-citizens
1.8%
Value Percent YoY change
U.S.-born citizens 17,507 91.3% 2.2%
Non-U.S.-born citizens 1,320 6.9% 9.9%
Non-citizens 339 1.8% 13.0%
Racial breakdown
White
86.7%
Black or African American
1.4%
American Indian and Alaska Native
1%
Asian
2.1%
Native Hawaiian and other Pacific Islander
0.7%
Two or more races
6.1%
Other
2%
Value Percent
White 16,619 86.7%
Black or African American 271 1.4%
American Indian and Alaska Native 199 1%
Asian 400 2.1%
Native Hawaiian and other Pacific Islander 134 0.7%
Two or more races 1,165 6.1%
Other 378 2%

Households in Nine Mile Falls

A peek inside Nine Mile Falls households

Nine Mile Falls has 7,727 households, with an average of 2 members in each. Of these, 67.8% are families, while the remaining 32.2% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
7,727
2.3% year-over-year change
Average people per household
2
Non-family households
2,489
Family households
5,238
Value Percent YoY change
Non-family households 2,489 32.2% 0.5%
Family households 5,238 67.8% 3.2%
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 Nine Mile Falls

The housing landscape of Nine Mile Falls

Nine Mile Falls's housing consists of 8,133 units, with 66.4% being detached single-family homes ideal for those wanting space. Attached options, including duplexes and townhouses, make up 2.7% and offer a more compact, shared living style. Then there are the multifamily buildings in the area, and for those seeking flexibility, non-traditional options like mobile homes account for 14.4% of the housing landscape.

Housing units
8,133
3.2% year-over-year change
Housing types
Value Percent
1 unit, detached 5,399 66.4%
1 unit, attached 217 2.7%
2 units 43 0.5%
3 or 4 units 69 0.8%
5 to 9 units 268 3.3%
10 to 19 units 330 4.1%
20 to 49 units 333 4.1%
50 or more units 302 3.7%
Mobile home 1,173 14.4%
Homes built since 2020
209
62.0% year-over-year change

The age of buildings in Nine Mile Falls

In Nine Mile Falls, the median construction year is 1994. About 3.3% of homes were built before the 1940s, with another 2.1% going up by 1949. Most development happened in the second half of the 20th century. Then, 22.3% of homes were added from 2000 to 2009, 17.2% between 2010 and 2019, and 2.6% are part of the newest wave of development.

Construction year breakdown by decade
Value Percent YoY change
Built in 1939 or earlier 268 3.3% -1.8%
Built between 1940 and 1949 173 2.1% -5.5%
Built between 1950 and 1959 259 3.2% 6.6%
Built between 1960 and 1969 331 4.1% 1.2%
Built between 1970 and 1979 1,406 17.3% 1.4%
Built between 1980 and 1989 786 9.7% 27.0%
Built between 1990 and 1999 1,489 18.3% -1.0%
Built between 2000 and 2009 1,811 22.3% -0.2%
Built between 2010 and 2019 1,401 17.2% 0.2%
Built in 2020 or later 209 2.6% 62.0%
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.

Nine Mile Falls occupancy rates

Out of the 7,727 occupied housing units in Nine Mile Falls, 74.5% are owner-occupied, while 25.5% are lived in by tenants. Meanwhile, 5% of all homes on the local market sit vacant.

Occupied housing units
7,727
2.3% year-over-year change
Occupancy breakdown
Renter occupied
1,973
Owner occupied
5,754
Value Percent YoY
change
Renter occupied 1,973 25.5% 1.8%
Owner occupied 5,754 74.5% 2.5%
Unoccupied housing units
5.0%
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.

Nine Mile Falls housing costs

Housing costs in Nine Mile Falls come to a median of $1,395 per month, while tenants specifically pay a median gross rent of $1,379.

Median housing costs per month
$1,395/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.
Median gross rent in Nine Mile Falls
$1,379/month
Gross rent gives a more complete look at what renters actually pay, including not just base rent, but also utilities and fees. It’s a key number for evaluating rental affordability in your area of interest and understanding how it compares to nearby locations.

Education in Nine Mile Falls

Nine Mile Falls education at a glance

About 25% of the population in Nine Mile Falls went to high school, while 27.2% pursued college studies. Another 11.9% earned an associate degree and 22.7% hold a bachelor’s. Meanwhile, 11.7% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 226 1.5% -2.2%
High school diploma 3,793 25% -0.0%
College diploma 4,132 27.2% 1.6%
Associate degree 1,799 11.9% -4.4%
Bachelor's degree 3,443 22.7% 9.2%
Graduate degree 1,769 11.7% -2.0%
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 Nine Mile Falls

How much people earn in Nine Mile Falls

The average annual household income in Nine Mile Falls was $114,284 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +5.2% change from the previous year. At the same time, the median income stood at $93,812, reflecting a +3.3% shift over the same period.

Average household income in Nine Mile Falls
$114,284/year
5.2% year-over-year change
Median household income in Nine Mile Falls
$93,812/year
3.3% year-over-year change

Nine Mile Falls income by age

In Nine Mile Falls, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $97,818. Those with someone between 45 and 64 in charge, often well established professionally, earn $102,206 overall. Younger households, where the main provider is under 25 and just starting out, report a median income of $44,120, while those led by someone over 65, many of whom may be retired, have about $71,410 in earnings. Overall, 92.1% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
Under 25 $44,120 -2.2%
25 - 44 $97,818 5.3%
45 - 64 $102,206 2.9%
Over 65 $71,410 -2.7%
Above poverty level
17,246
Below poverty level
1,487
Value Percent YoY
change
Above poverty level 17,246 92.1% 3.1%
Below poverty level 1,487 7.9% -2.0%

Employment in Nine Mile Falls

Workforce and job types in Nine Mile Falls

78.2% of the working population are employed in professional or administrative positions, while 21.8% are in hands-on or service-based jobs. Also, 10.7% run their own businesses, 58.9% are employed by private companies, and 19.7% work in the public sector.

Workforce demographics

White collar
6,735
Blue collar
1,875
Value Percent YoY change
White collar 6,735 78.2% 4.0%
Blue collar 1,875 21.8% 7.0%
Employer type
Self employees
10.7%
Private companies
58.9%
Governmental workers
19.7%
Not for profit companies
10.6%
Value Percent YoY change
Self employees 920 10.7% 8.1%
Private companies 5,075 58.9% 6.9%
Governmental workers 1,700 19.7% 1.6%
Not for profit companies 916 10.6% -4.0%

Transportation in Nine Mile Falls

How people get around in Nine Mile Falls

Commuting methods vary: 96.8% of residents travel by personal vehicle and 1.6% 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 6,998 96.8% 2.3%
Taxicab 8 0.1% 0.0%
Bus or trolleybus 109 1.5% -19.3%
Motorcycle 5 0.1% -58.3%
Walk 112 1.6% -6.7%
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 Nine Mile Falls by zipcode?

Zipcode Population Number of households Median income Average income
99022 8,767 3,533 $93,812 $94,012
99026 9,320 3,440 $100,599 $124,754
99224 24,919 10,502 $80,770 $110,661

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FAQs about Nine Mile Falls demographics 

What is the total population of Nine Mile Falls?

Nine Mile Falls has a total population of 19,166 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 +2.8% compared to a year ago.

What is the gender ratio in Nine Mile Falls?

The gender ratio in Nine Mile Falls is as follows:
  • 49.6% males (9,502 residents)
  • 50.4% females (9,664 residents)

What is the median age in Nine Mile Falls?

The median age in Nine Mile Falls is 43.5.

What is the age distribution of the population in Nine Mile Falls?

The age distribution in Nine Mile Falls is as follows:
  • Under 15: 17.1% (3,286 residents)
  • Ages 15-24: 11.1% (2,122 residents)
  • Ages 25-44: 23.7% (4,534 residents)
  • Ages 45-64: 28.4% (5,437 residents)
  • Over 65: 19.8% (3,788 residents)

What is the racial and ethnic makeup of Nine Mile Falls?

The racial and ethnic makeup of Nine Mile Falls is as follows:
  • White: 86.7% (16,619 residents)
  • Black or African American: 1.4% (271 residents)
  • American Indian and Alaska Native: 1% (199 residents)
  • Asian: 2.1% (400 residents)
  • Native Hawaiian and Other Pacific Islander: 0.7% (134 residents)
  • Two or More Races: 6.1% (1,165 residents)
  • Other: 2% (378 residents)

What percentage of the population in Nine Mile Falls are U.S.-born citizens?

U.S.-born citizens represent 91.3% of the population in Nine Mile Falls.

How many housing units are there in Nine Mile Falls?

There are 8,133 housing units in Nine Mile Falls, reflecting a +3.2% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

How many households are in Nine Mile Falls and what is the average household size?

Nine Mile Falls has a total of 7,727 households, with an average of 2 people in each.

What is the median household income in Nine Mile Falls?

Nine Mile Falls has a median household income of $93,812, representing a +3.3% shift from the previous year, according to the U.S. Census Bureau.

What is the job market overview for Nine Mile Falls?

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

Job types:
  • White-collar workers: 78.2% (6,735 residents)
  • Blue-collar workers: 21.8% (1,875 residents)

Places of employment:
  • Self-employed: 10.7% (920 residents)
  • Private companies: 58.9% (5,075 residents)
  • Governmental workers: 19.7% (1,700 residents)
  • Not-for-profit companies: 10.6% (916 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