Underwood, WA demographics:
population, income, and more

Total population
896
-2.7% year-over-year change
Median household income
$90,000/yr
3.0% year-over-year change
Housing units
444
1.4% year-over-year change

Underwood population

How many people live in Underwood

Underwood is home to 896 residents, according to the most recent Census data. Gender-wise, 51.8% of Underwood locals are male, and 48.2% are female.

Total population
896
-2.7% year-over-year change
Gender ratio
Male
51.8%
464
Female
48.2%
432
Value Percent YoY change
Male 464 51.8% -4.9%
Female 432 48.2% -0.2%
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 Underwood is 58, with the population distributed as follows: about 8.7% are children under 15, then 7.4% are in the 15 to 24 age group. Adults between 25 and 44 make up 17.3% of the population, while another 29% fall into the 45 to 64 bracket. Finally, around 37.7% are 65 or older.

Median age
58.3
Age breakdown
Under 15
8.7%
15 to 24
7.4%
25 to 44
17.3%
45 to 64
29%
Over 65
37.7%
Value Percent YoY change
Under 15 78 8.7% -20.4%
15 to 24 66 7.4% -17.5%
25 to 44 155 17.3% -6.1%
45 to 64 260 29% -17.5%
Over 65 338 37.7% 29.0%
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 Underwood, 90.1% of the population are US-born citizens, while 3.5% have gained naturalized citizenship. At the same time, 6.5% of residents are non-citizens. There’s also a share of 2.9% that includes residents with two or more races.

Citizenship
U.S.-born citizens
90.1%
Non-U.S.-born citizens
3.5%
Non-citizens
6.5%
Value Percent YoY change
U.S.-born citizens 808 90.1% -0.2%
Non-U.S.-born citizens 31 3.5% 6.9%
Non-citizens 58 6.5% -30.1%
Racial breakdown
White
91.3%
Black or African American
0%
American Indian and Alaska Native
0%
Asian
0%
Native Hawaiian and other Pacific Islander
0%
Two or more races
2.9%
Other
5.8%
Value Percent
White 818 91.3%
Two or more races 26 2.9%
Other 52 5.8%

Households in Underwood

A peek inside Underwood households

Underwood has 416 households, with an average of 2 members in each. Of these, 61.8% are families, while the remaining 38.2% are made up of individuals living alone or with non-relatives, such as roommates.

Households stats

Total households
416
0.5% year-over-year change
Average people per household
2
Non-family households
159
Family households
257
Value Percent YoY change
Non-family households 159 38.2% 8.2%
Family households 257 61.8% -3.8%
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 Underwood

The housing landscape of Underwood

Underwood's housing consists of 444 units, with 76.2% 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 14.4% of the housing landscape.

Housing units
444
1.4% year-over-year change
Housing types
Value Percent
1 unit, detached 339 76.2%
3 or 4 units 19 4.3%
Mobile home 64 14.4%
Boat, RV, van, etc. 23 5.2%
Homes built since 2020
% year-over-year change

The age of buildings in Underwood

In Underwood, the median construction year is 1985. About 12.9% of homes were built before the 1940s, with another 7.5% 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 57 12.9% 32.6%
Built between 1940 and 1949 33 7.5% 13.8%
Built between 1950 and 1959 14 3.2% 16.7%
Built between 1960 and 1969 37 8.4% 15.6%
Built between 1970 and 1979 50 11.3% -29.6%
Built between 1980 and 1989 59 13.4% -21.3%
Built between 1990 and 1999 105 23.8% -2.8%
Built between 2000 and 2009 40 9% -29.8%
Built between 2010 and 2019 47 10.6% 291.7%
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.

Underwood occupancy rates

Out of the 416 occupied housing units in Underwood, 87.3% are owner-occupied, while 12.5% are lived in by tenants. Meanwhile, 6.3% of all homes on the local market sit vacant.

Occupied housing units
416
0.5% year-over-year change
Occupancy breakdown
Renter occupied
52
Owner occupied
363
Value Percent YoY
change
Renter occupied 52 12.5% -20.0%
Owner occupied 363 87.3% 4.0%
Unoccupied housing units
6.3%
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.

Underwood housing costs

Housing costs in Underwood come to a median of $1,150 per month, while tenants specifically pay a median gross rent of $1,035.

Median housing costs per month
$1,150/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 Underwood
$1,035/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 Underwood

Underwood education at a glance

About 28% of the population in Underwood went to high school, while 17.4% pursued college studies. Another 15% earned an associate degree and 20.8% hold a bachelor’s. Meanwhile, 15.7% went even further, earning a master’s or doctorate.

Education level
Value Percent YoY change
No high school 24 3% 84.6%
High school diploma 222 28% 1.4%
College diploma 138 17.4% 24.3%
Associate degree 119 15% -26.1%
Bachelor's degree 165 20.8% 3.1%
Graduate degree 124 15.7% -2.4%
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 Underwood

How much people earn in Underwood

The average annual household income in Underwood was $142,229 in 2024, the most recent annual data available, according to the U.S. Census Bureau. This marked a +5.6% change from the previous year. At the same time, the median income stood at $90,000, reflecting a +3% shift over the same period.

Average household income in Underwood
$142,229/year
5.6% year-over-year change
Median household income in Underwood
$90,000/year
3.0% year-over-year change

Underwood income by age

In Underwood, households led by residents aged 25 to 44 — usually in the early to mid stages of their careers — have a median income of $250,001. Overall, 96.3% of the locals in this community live above the poverty line.

Income breakdown by age
Value YoY change
25 - 44 $250,001 69.8%
Over 65 $87,800 1.6%
Above poverty level
862
Below poverty level
33
Value Percent YoY
change
Above poverty level 862 96.3% -1.4%
Below poverty level 33 3.7% -28.3%

Employment in Underwood

Workforce and job types in Underwood

72.4% of the working population are employed in professional or administrative positions, while 27.6% are in hands-on or service-based jobs. Also, 20.4% run their own businesses, 47.9% are employed by private companies, and 19% work in the public sector.

Workforce demographics

White collar
323
Blue collar
123
Value Percent YoY change
White collar 323 72.4% -0.6%
Blue collar 123 27.6% -18.0%
Employer type
Self employees
20.4%
Private companies
47.9%
Governmental workers
19%
Not for profit companies
12.8%
Value Percent YoY change
Self employees 91 20.4% -3.2%
Private companies 214 47.9% -17.1%
Governmental workers 85 19% 10.4%
Not for profit companies 57 12.8% 23.9%

Transportation in Underwood

How people get around in Underwood

Commuting methods vary: 96.9% of residents travel by personal vehicle and 3.1% 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 282 96.9% -9.3%
Walk 9 3.1% N/A
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 Underwood by zipcode?

Zipcode Population Number of households Median income Average income
98651 910 422 $90,000 $142,438

Explore more communities

FAQs about Underwood demographics 

What is the total population of Underwood?

Underwood has a total population of 896 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 -2.7% compared to a year ago.

What is the gender ratio in Underwood?

The gender ratio in Underwood is as follows:
  • 51.8% males (464 residents)
  • 48.2% females (432 residents)

What is the median age in Underwood?

The median age in Underwood is 58.3.

What is the age distribution of the population in Underwood?

The age distribution in Underwood is as follows:
  • Under 15: 8.7% (78 residents)
  • Ages 15-24: 7.4% (66 residents)
  • Ages 25-44: 17.3% (155 residents)
  • Ages 45-64: 29% (260 residents)
  • Over 65: 37.7% (338 residents)

What is the racial and ethnic makeup of Underwood?

The racial and ethnic makeup of Underwood is as follows:
  • White: 91.3% (818 residents)
  • Black or African American: 0% ( residents)
  • American Indian and Alaska Native: 0% ( residents)
  • Asian: 0% ( residents)
  • Native Hawaiian and Other Pacific Islander: 0% ( residents)
  • Two or More Races: 2.9% (26 residents)
  • Other: 5.8% (52 residents)

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

U.S.-born citizens represent 90.1% of the population in Underwood.

How many housing units are there in Underwood?

There are 444 housing units in Underwood, reflecting a +1.4% change compared to the previous year, according to the latest data from the U.S. Census Bureau.

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

Underwood has a total of 416 households, with an average of 2 people in each.

What is the median household income in Underwood?

Underwood has a median household income of $90,000, representing a +3.0% shift from the previous year, according to the U.S. Census Bureau.

What is the job market overview for Underwood?

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

Job types:
  • White-collar workers: 72.4% (323 residents)
  • Blue-collar workers: 27.6% (123 residents)

Places of employment:
  • Self-employed: 20.4% (91 residents)
  • Private companies: 47.9% (214 residents)
  • Governmental workers: 19% (85 residents)
  • Not-for-profit companies: 12.8% (57 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