99140 ZIP Code — Keller, WA

Ferry County, Washington

ZIP code 99140 is located in Keller, Washington, within Ferry County. It covers approximately 443.11 square miles and serves a population of 568 residents. This is a standard ZIP code in the Pacific (PT) timezone, served by area code 509.

About ZIP code 99140

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1970s, giving the area an established character. Median home value is $139,300. Owner-occupancy sits near the national average at 73%.

Median household income is $50,430. Poverty affects 19% of residents, above the national average. SNAP benefit usage at 31% of households reflects economic stress in the area. 56% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is service, with public administration as the leading industry. The average commute of 26 minutes is near the national average.

College attainment at 9% is below the national average, consistent with a trades and production-oriented local economy.

Health indicators show elevated rates of diabetes (15%), smoking (26%) compared to national benchmarks.

Notable community characteristics include disability rates above the national average at 31%.

Overall, ZIP code 99140 reflects a community defined by a trades-oriented workforce, economic challenges above the national average, a significant Social Security-dependent population, and elevated reliance on food assistance.

568

population

443.11

sq mi land

Standard

ZIP type

Pacific (PT)

timezone

99140 ZIP code map

Cities in ZIP code 99140

Below are the cities the US Postal Service accepts for ZIP code 99140. Using any city not on this list may result in mail delivery delays.

City	Status
Keller	Preferred

Nearby ZIP codes

99138 Inchelium (14.4 mi) 99147 Lincoln (17.2 mi) 99129 Fruitland (17.9 mi)

Demographics updated 05/2026

Population
Total population	568
Population density	1 / sq mi
State FIPS	53
County FIPS	019

Geography
Land area	443.11 sq mi
Water area	15.25 sq mi
Latitude	48.0657
Longitude	-118.5960
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	64.5%	57.8%	31.7%
$50k – $100k	20.1%	23.0%	30.6%
$100k – $200k	14.5%	16.2%	27.1%
Over $200k	0.9%	3.0%	10.6%

Demographics & statistics

568

Population

People per sq mi

51.3

Median age

$50,430

Median household income

$27,629

Per capita income

$139,300

Median home value

$558

Median monthly rent

72.5%

Home ownership

19.0%

Poverty rate

5.8%

Unemployment

233

Housing units

9.4%

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	96	16.9%
18 and over	472	83.1%
65 and over	174	30.6%
Median age	51.3 years

Race & ethnicity

American Indian / Alaska Native 65.7%

White 22.5%

Two or more races 11.4%

Black or African American 0.4%

Group	Count	%
American Indian / Alaska Native	373	65.7%
White	128	22.5%
Two or more races	65	11.4%
Black or African American	2	0.4%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	64.5%	57.8%	31.7%
$50k – $100k	20.1%	23.0%	30.6%
$100k – $200k	14.5%	16.2%	27.1%
Over $200k	0.9%	3.0%	10.6%

Under $10k 6.3%

$10k–$15k 8.6%

$15k–$25k 9.4%

$25k–$35k 11.8%

$35k–$50k 11.8%

$50k–$75k 34.1%

$75k–$100k 3.9%

$100k–$150k 8.2%

$150k–$200k 5.1%

$200k+ 0.8%

Range	% of households
Under $10k	6.3%
$10k–$15k	8.6%
$15k–$25k	9.4%
$25k–$35k	11.8%
$35k–$50k	11.8%
$50k–$75k	34.1%
$75k–$100k	3.9%
$100k–$150k	8.2%
$150k–$200k	5.1%
$200k+	0.8%
Median income	$50,430

Housing

Home values

Under $50k 14.6%

$50k–$100k 3.2%

$100k–$150k 40.0%

$150k–$200k 10.3%

$200k–$300k 20.0%

$300k–$500k 8.6%

$500k–$1M 1.1%

$1M+ 2.2%

Housing overview

Metric	Value
Median home value	$139,300
Median rent / month	$558
Owner occupied	72.5%
Renter occupied	27.5%
Vacant	15.8%
Single-family detached	78.2%
Large apartment buildings	0.0%
Mobile homes	18.2%
Median rooms	5.2
Avg household size (owned)	2.24

Year built

Era	%
2020 or later	0.0%
2010–2019	6.9%
2000–2009	5.6%
1990–1999	4.0%
1980–1989	18.5%
1970–1979	39.3%
1960–1969	16.5%
1950–1959	4.6%
1940–1949	0.0%
1939 or earlier	4.6%

Bedrooms

Size	% of units
No bedroom (studio)	2.0%
1 bedroom	5.6%
2 bedrooms	20.1%
3 bedrooms	54.1%
4 bedrooms	15.5%
5+ bedrooms	2.6%

Vehicles per household

Vehicles	% of households
No vehicle	18.0%
1 vehicle	29.8%
2 vehicles	18.4%
3 or more	33.7%

Heating fuel

Fuel type	%
Utility gas	2.0%
Electricity	14.5%
Propane / LP gas	3.9%
Wood	78.8%

Households & families

Household type	Count	%
Married-couple family	86	33.7%
Cohabiting couple	16	6.3%
Male householder, no spouse	54	21.2%
Female householder, no spouse	99	38.8%
Households with children under 18	48	18.8%
Households with seniors (65+)	131	51.4%
Average household size	2.23

Marital status

Status	Male	Female
Never married	40.8%	22.6%
Married	39.6%	33.5%
Separated	2.6%	7.2%
Widowed	5.3%	14.0%
Divorced	11.7%	22.6%

Education

Less than 9th grade 4.4%

Some HS, no diploma 4.9%

HS graduate 44.3%

Some college, no degree 29.3%

Associate's degree 7.7%

Bachelor's degree 6.1%

Graduate / professional 3.3%

Metric	%
HS diploma or higher	90.6%
Bachelor's or higher	9.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	11	11.5%
Kindergarten	5	5.2%
Elementary school	41	42.7%
High school	28	29.2%
College / grad school	11	11.5%

Employment

Industry of employment

Public administration 48.9%

Education & healthcare 17.6%

Agriculture & mining 10.6%

Construction 4.4%

Transportation & utilities 4.4%

Professional & management 3.5%

Retail trade 2.2%

Arts, food & hospitality 2.2%

Manufacturing 1.8%

Finance & real estate 1.8%

Wholesale trade 0.9%

Information 0.9%

Other services 0.9%

Occupation

Category	%
Management, business & arts	35.2%
Service	35.7%
Sales & office	11.0%
Natural resources & construction	11.5%
Production & transportation	6.6%

Employment type

Type	%
Private sector	23.8%
Government	72.7%
Self-employed	3.5%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	88.4%
Carpool	3.6%
Public transit	0.0%
Walk	0.4%
Work from home	5.4%
Other means	2.2%
Avg commute (minutes)	26.0

Poverty

All people 19.0%

Under 18 years 33.3%

18 and over 16.1%

Married-couple families 1.2%

Female-led households 22.6%

Income support

Source	% of households
Social Security	55.7%
Retirement income	18.0%
Supplemental Security	7.1%
Cash public assistance	5.5%
Food stamps / SNAP	31.0%

Health indicators

Condition	%
Obesity	36.7%
High blood pressure	36.5%
High cholesterol	32.3%
Diabetes	15.4%
Heart disease	9.2%
Stroke	5.3%
Asthma	14.4%
Arthritis	30.1%
Kidney disease	4.2%
Pulmonary disease	10.6%
Cancer	7.0%

Behavior / access	%
Smoking	26.2%
Binge drinking	15.9%
No physical activity	26.7%
Less than 7 hrs sleep	39.0%
Depression	28.7%
Fair or poor health	23.8%
Poor mental health	19.6%
Poor physical health	17.3%
No health insurance	13.2%
Visited doctor (checkup)	70.4%
Visited dentist	51.1%
Cholesterol screening	86.3%
Teeth loss	22.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	35	7.4%

Disability	%
Any disability	30.8%
Under 18	2.1%
18–64 years	21.5%
65 and over	62.6%

Health insurance coverage

Type	%
Private insurance	44.7%
Public insurance	59.5%
No insurance	8.6%
Uninsured under 19	15.6%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	539	94.9%
Spanish	12	2.2%
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)	562	98.9%
Born in same state	546	96.1%
Born in different state	423	74.5%
Foreign born	16	2.8%
Naturalized citizen	6	1.1%
Not a US citizen	4	66.7%

Ancestry

Ancestry	Count	%
Arab	46	8.1%
Italian	15	2.6%
French	12	2.1%
Dutch	4	0.7%

Ancestry	Count	%
English	3	0.5%
Polish	3	0.5%
German	2	0.4%

Technology access

Metric	% of households
Computer access	44.9%
Internet access	81.6%

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

Frequently asked questions about ZIP code 99140

What city is ZIP code 99140 in?

ZIP code 99140 is primarily assigned to Keller, Washington.

What county is ZIP code 99140 in?

ZIP code 99140 falls within Ferry County, Washington.

Does ZIP code 99140 have an older population?

31% of residents in ZIP code 99140 are 65 or older, above the national average of ~17%.

Does ZIP code 99140 have a large retiree population?

56% of households in ZIP code 99140 receive Social Security income, suggesting a significant retiree or disability population.

How educated is the population of ZIP code 99140?

9% of residents hold a bachelor's degree or higher — below the national average of ~33%, consistent with a trades-oriented local economy.

What is the poverty rate in ZIP code 99140?

19% of residents in ZIP code 99140 live below the poverty line, above the national average.

What timezone is ZIP code 99140 in?

ZIP code 99140 observes the PST timezone.