99040 ZIP Code — Wellpinit, WA

Stevens County, Washington

ZIP code 99040 is located in Wellpinit, Washington, within Stevens County. It covers approximately 106.82 square miles and serves a population of 643 residents. This is a standard ZIP code in the Pacific (PT) timezone, served by area code 509.

About ZIP code 99040

The housing stock consists of a higher-than-average concentration of mobile homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $149,200. Owner-occupancy is high at 78%, well above the national average.

Median household income is $49,688. Poverty affects 27% of residents, above the national average. SNAP benefit usage at 30% of households reflects economic stress in the area. 49% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with education and healthcare as the leading industry. The average commute of 15 minutes is near the national average.

Educational attainment is near the national average, with 26% of residents holding a bachelor's degree or higher.

Health indicators show elevated rates of diabetes (16%), smoking (31%) compared to national benchmarks. 16% of residents lack health insurance, above the national average.

Notable community characteristics include disability rates above the national average at 25%.

Overall, ZIP code 99040 reflects a community defined by economic challenges above the national average, high homeownership, a significant Social Security-dependent population, and elevated reliance on food assistance.

643

population

106.82

sq mi land

Standard

ZIP type

Pacific (PT)

timezone

99040 ZIP code map

Cities in ZIP code 99040

Below are the cities the US Postal Service accepts for ZIP code 99040. Using any city not on this list may result in mail delivery delays.

City	Status
Wellpinit	Preferred

Nearby ZIP codes

99013 Ford (8.8 mi) 99173 Springdale (10.4 mi) 99129 Fruitland (12.2 mi) 99029 Reardan (13.7 mi) 99122 Davenport (15.5 mi) 99026 Nine Mile Falls (18.8 mi) 99137 Hunters (19.2 mi) 99181 Valley (19.7 mi)

Demographics updated 05/2026

Population
Total population	643
Population density	6 / sq mi
State FIPS	53
County FIPS	065

Geography
Land area	106.82 sq mi
Water area	1.49 sq mi
Latitude	47.8829
Longitude	-118.0102
Timezone	Pacific (PT)
Area code	509

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	62.6%	49.6%	31.7%
$50k – $100k	21.4%	31.1%	30.6%
$100k – $200k	15.4%	15.5%	27.1%
Over $200k	0.5%	3.8%	10.6%

Demographics & statistics

643

Population

People per sq mi

48.2

Median age

$49,688

Median household income

$27,651

Per capita income

$149,200

Median home value

$381

Median monthly rent

78.2%

Home ownership

26.6%

Poverty rate

7.6%

Unemployment

279

Housing units

26.3%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

20–24

25–34

35–44

45–54

55–59

60–64

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	100	15.6%
18 and over	543	84.4%
65 and over	156	24.3%
Median age	48.2 years

Race & ethnicity

American Indian / Alaska Native 82.6%

White 13.4%

Two or more races 2%

Black or African American 1.9%

Native Hawaiian / Pacific Islander 0.2%

Group	Count	%
American Indian / Alaska Native	531	82.6%
White	86	13.4%
Two or more races	13	2%
Black or African American	12	1.9%
Native Hawaiian / Pacific Islander	1	0.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	62.6%	49.6%	31.7%
$50k – $100k	21.4%	31.1%	30.6%
$100k – $200k	15.4%	15.5%	27.1%
Over $200k	0.5%	3.8%	10.6%

Under $10k 4.4%

$10k–$15k 3.8%

$15k–$25k 14.0%

$25k–$35k 12.6%

$35k–$50k 15.4%

$50k–$75k 24.6%

$75k–$100k 1.0%

$100k–$150k 17.7%

$150k–$200k 5.1%

$200k+ 1.4%

Range	% of households
Under $10k	4.4%
$10k–$15k	3.8%
$15k–$25k	14.0%
$25k–$35k	12.6%
$35k–$50k	15.4%
$50k–$75k	24.6%
$75k–$100k	1.0%
$100k–$150k	17.7%
$150k–$200k	5.1%
$200k+	1.4%
Median income	$49,688

Housing

Home values

Under $50k 17.9%

$50k–$100k 10.5%

$100k–$150k 21.8%

$150k–$200k 31.9%

$200k–$300k 14.4%

$300k–$500k 1.7%

$500k–$1M 1.7%

Housing overview

Metric	Value
Median home value	$149,200
Median rent / month	$381
Owner occupied	78.2%
Renter occupied	21.8%
Vacant	14.6%
Single-family detached	60.1%
Large apartment buildings	0.0%
Mobile homes	36.2%
Median rooms	5.3
Avg household size (owned)	2.36

Year built

Era	%
2020 or later	0.0%
2010–2019	3.8%
2000–2009	27.1%
1990–1999	28.0%
1980–1989	12.2%
1970–1979	20.1%
1960–1969	3.8%
1950–1959	3.2%
1940–1949	0.0%
1939 or earlier	1.7%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	4.7%
2 bedrooms	13.7%
3 bedrooms	63.0%
4 bedrooms	16.3%
5+ bedrooms	2.3%

Vehicles per household

Vehicles	% of households
No vehicle	5.5%
1 vehicle	27.3%
2 vehicles	40.3%
3 or more	27.0%

Heating fuel

Fuel type	%
Electricity	42.7%
Propane / LP gas	10.6%
Fuel oil	1.4%
Wood	41.6%

Households & families

Household type	Count	%
Married-couple family	92	31.4%
Cohabiting couple	16	5.5%
Male householder, no spouse	36	12.3%
Female householder, no spouse	149	50.9%
Households with children under 18	67	22.9%
Households with seniors (65+)	128	43.7%
Average household size	2.19

Marital status

Status	Male	Female
Never married	47.1%	37.0%
Married	36.5%	31.2%
Separated	0.0%	2.5%
Widowed	3.8%	15.9%
Divorced	12.5%	13.4%

Education

Less than 9th grade 2.0%

Some HS, no diploma 7.9%

HS graduate 34.8%

Some college, no degree 23.1%

Associate's degree 5.9%

Bachelor's degree 13.2%

Graduate / professional 13.2%

Metric	%
HS diploma or higher	90.1%
Bachelor's or higher	26.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	6	6.1%
Elementary school	48	48.5%
High school	42	42.4%
College / grad school	3	3.0%

Employment

Industry of employment

Education & healthcare 40.6%

Public administration 37.5%

Construction 5.5%

Retail trade 4.7%

Agriculture & mining 4.3%

Professional & management 3.1%

Other services 2.3%

Arts, food & hospitality 2.0%

Occupation

Category	%
Management, business & arts	53.1%
Service	8.6%
Sales & office	25.0%
Natural resources & construction	6.3%
Production & transportation	7.0%

Employment type

Type	%
Private sector	16.0%
Government	80.5%
Self-employed	2.7%
Unpaid family workers	0.8%

Commute

Method	%
Drive alone	84.4%
Carpool	1.2%
Public transit	0.0%
Walk	12.1%
Work from home	0.8%
Other means	1.6%
Avg commute (minutes)	14.7

Poverty

All people 26.6%

Under 18 years 33.3%

18 and over 25.5%

Married-couple families 0.0%

Female-led households 23.8%

Income support

Source	% of households
Social Security	48.8%
Retirement income	13.7%
Supplemental Security	14.0%
Cash public assistance	1.0%
Food stamps / SNAP	30.4%

Health indicators

Condition	%
Obesity	39.6%
High blood pressure	35.4%
High cholesterol	28.5%
Diabetes	15.7%
Heart disease	8.5%
Stroke	5.4%
Asthma	14.9%
Arthritis	27.6%
Kidney disease	4.3%
Pulmonary disease	10.6%
Cancer	5.7%

Behavior / access	%
Smoking	31.1%
Binge drinking	16.4%
No physical activity	28.7%
Less than 7 hrs sleep	40.6%
Depression	28.9%
Fair or poor health	26.5%
Poor mental health	21.6%
Poor physical health	17.9%
No health insurance	14.2%
Visited doctor (checkup)	66.5%
Visited dentist	45.3%
Cholesterol screening	83.5%
Teeth loss	27.2%

Veterans & disability

Veterans	Count	%
Civilian veterans	36	6.6%

Disability	%
Any disability	25.4%
Under 18	3.0%
18–64 years	30.1%
65 and over	28.2%

Health insurance coverage

Type	%
Private insurance	29.3%
Public insurance	57.6%
No insurance	15.6%
Uninsured under 19	16.7%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	633	98.4%
Spanish	0	0.0%
Other Indo-European	0	0.0%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	643	100.0%
Born in same state	640	99.5%
Born in different state	543	84.4%
Foreign born	3	0.5%
Naturalized citizen	0	0.0%
Not a US citizen	0	0.0%

Ancestry

Ancestry	Count	%
Arab	60	9.3%
Italian	15	2.3%

Ancestry	Count	%
Polish	5	0.8%
French	2	0.3%

Technology access

Metric	% of households
Computer access	45.6%
Internet access	80.9%

Source: U.S. Census Bureau, American Community Survey 2025 estimates.

Frequently asked questions about ZIP code 99040

What city is ZIP code 99040 in?

ZIP code 99040 is primarily assigned to Wellpinit, Washington.

What county is ZIP code 99040 in?

ZIP code 99040 falls within Stevens County, Washington.

What is the poverty rate in ZIP code 99040?

27% of residents in ZIP code 99040 live below the poverty line, above the national average.

Does ZIP code 99040 have a large retiree population?

49% of households in ZIP code 99040 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 99040?

The median home value in ZIP code 99040 is $149,200.

What are the health statistics for ZIP code 99040?

Health data for ZIP code 99040 shows elevated rates of diabetes (16%) and smoking (31%) compared to national benchmarks.

What timezone is ZIP code 99040 in?

ZIP code 99040 observes the PST timezone.