99116 ZIP Code — Coulee Dam, WA

Okanogan County, Washington

ZIP code 99116 is located in Coulee Dam, Washington, within Okanogan County. It covers approximately 47.20 square miles and serves a population of 1,538 residents. This is a standard ZIP code in the Pacific (PT) timezone, served by area code 509.

About ZIP code 99116

The housing stock consists of predominantly single-family detached homes. Most homes were built in the pre-1940, giving the area an established character. Median home value is $189,600. Owner-occupancy sits near the national average at 67%.

Median household income is $62,794. 37% of households receive Social Security income, suggesting a notable retiree or disability population.

The dominant occupation class is management, business, and professional, with public administration as the leading industry. The average commute of 17 minutes is near the national average.

Educational attainment is near the national average, with 32% of residents holding a bachelor's degree or higher.

Health indicators show elevated rates of smoking (23%) compared to national benchmarks.

Notable community characteristics include a notable veteran presence at 14% of civilians, above the national average of 7%.

Overall, ZIP code 99116 reflects a community defined by a strong veteran community and a significant Social Security-dependent population.

1,538

population

47.20

sq mi land

Standard

ZIP type

Pacific (PT)

timezone

99116 ZIP code map

Cities in ZIP code 99116

Below are the cities the US Postal Service accepts for ZIP code 99116. Using any city not on this list may result in mail delivery delays.

City	Status
Coulee Dam	Acceptable
Coulee Dam	Preferred

Nearby ZIP codes

98841 Omak (14.5 mi) 98840 Okanogan (16.1 mi) 99133 Grand Coulee (18.3 mi)

Demographics updated 05/2026

Population
Total population	1,538
Population density	33 / sq mi
State FIPS	53
County FIPS	047

Geography
Land area	47.20 sq mi
Water area	4.43 sq mi
Latitude	48.2118
Longitude	-119.2899
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	40.9%	52.2%	31.7%
$50k – $100k	31.2%	31.7%	30.6%
$100k – $200k	26.3%	13.9%	27.1%
Over $200k	1.5%	2.2%	10.6%

Demographics & statistics

1,538

Population

People per sq mi

43.9

Median age

$62,794

Median household income

$41,868

Per capita income

$189,600

Median home value

$882

Median monthly rent

67.3%

Home ownership

12.6%

Poverty rate

8.1%

Unemployment

546

Housing units

32.3%

Bachelor's or higher

Age distribution

Male Female

Under 5

5–9

10–14

15–19

105

20–24

25–34

35–44

121

45–54

104

55–59

60–64

113

65–74

75–84

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	261	17.0%
18 and over	1,277	83.0%
65 and over	397	25.8%
Median age	43.9 years

Race & ethnicity

White 53.7%

American Indian / Alaska Native 38.6%

Two or more races 5.8%

Asian 0.9%

Black or African American 0.5%

Native Hawaiian / Pacific Islander 0.3%

Hispanic or Latino 0.2%

Group	Count	%
White	828	53.7%
American Indian / Alaska Native	595	38.6%
Two or more races	89	5.8%
Asian	14	0.9%
Black or African American	8	0.5%
Native Hawaiian / Pacific Islander	4	0.3%
Hispanic or Latino	3	0.2%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	40.9%	52.2%	31.7%
$50k – $100k	31.2%	31.7%	30.6%
$100k – $200k	26.3%	13.9%	27.1%
Over $200k	1.5%	2.2%	10.6%

Under $10k 3.7%

$10k–$15k 3.9%

$15k–$25k 3.4%

$25k–$35k 7.9%

$35k–$50k 9.5%

$50k–$75k 28.8%

$75k–$100k 12.1%

$100k–$150k 12.3%

$150k–$200k 14.2%

$200k+ 4.2%

Range	% of households
Under $10k	3.7%
$10k–$15k	3.9%
$15k–$25k	3.4%
$25k–$35k	7.9%
$35k–$50k	9.5%
$50k–$75k	28.8%
$75k–$100k	12.1%
$100k–$150k	12.3%
$150k–$200k	14.2%
$200k+	4.2%
Median income	$62,794

Housing

Home values

Under $50k 6.7%

$50k–$100k 9.3%

$100k–$150k 15.2%

$150k–$200k 20.9%

$200k–$300k 40.9%

$300k–$500k 4.3%

$500k–$1M 2.4%

$1M+ 0.2%

Housing overview

Metric	Value
Median home value	$189,600
Median rent / month	$882
Owner occupied	67.3%
Renter occupied	32.7%
Vacant	11.2%
Single-family detached	79.9%
Large apartment buildings	1.0%
Mobile homes	5.3%
Median rooms	5.3
Avg household size (owned)	2.40

Year built

Era	%
2020 or later	0.0%
2010–2019	1.0%
2000–2009	5.3%
1990–1999	1.6%
1980–1989	13.0%
1970–1979	12.7%
1960–1969	11.3%
1950–1959	8.1%
1940–1949	12.9%
1939 or earlier	34.2%

Bedrooms

Size	% of units
No bedroom (studio)	2.3%
1 bedroom	7.7%
2 bedrooms	35.1%
3 bedrooms	32.9%
4 bedrooms	18.1%
5+ bedrooms	4.0%

Vehicles per household

Vehicles	% of households
No vehicle	5.8%
1 vehicle	44.0%
2 vehicles	27.0%
3 or more	23.1%

Heating fuel

Fuel type	%
Electricity	86.1%
Wood	13.3%

Households & families

Household type	Count	%
Married-couple family	237	34.6%
Cohabiting couple	52	7.6%
Male householder, no spouse	217	31.7%
Female householder, no spouse	178	26.0%
Households with children under 18	158	23.1%
Households with seniors (65+)	281	41.1%
Average household size	2.18

Marital status

Status	Male	Female
Never married	36.8%	31.3%
Married	36.4%	43.3%
Separated	4.3%	0.0%
Widowed	4.8%	10.9%
Divorced	17.6%	14.5%

Education

Less than 9th grade 2.4%

Some HS, no diploma 3.2%

HS graduate 24.0%

Some college, no degree 26.5%

Associate's degree 11.6%

Bachelor's degree 23.6%

Graduate / professional 8.7%

Metric	%
HS diploma or higher	94.4%
Bachelor's or higher	32.3%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	20	5.5%
Kindergarten	9	2.5%
Elementary school	112	30.8%
High school	56	15.4%
College / grad school	167	45.9%

Employment

Industry of employment

Public administration 32.7%

Education & healthcare 17.0%

Arts, food & hospitality 11.1%

Professional & management 8.8%

Agriculture & mining 6.8%

Transportation & utilities 5.9%

Retail trade 4.6%

Finance & real estate 4.3%

Construction 3.2%

Other services 2.0%

Information 1.8%

Manufacturing 1.7%

Occupation

Category	%
Management, business & arts	42.8%
Service	17.5%
Sales & office	17.7%
Natural resources & construction	15.1%
Production & transportation	7.0%

Employment type

Type	%
Private sector	35.5%
Government	61.6%
Self-employed	2.9%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	81.8%
Carpool	6.9%
Public transit	0.0%
Walk	6.3%
Work from home	3.5%
Other means	1.5%
Avg commute (minutes)	16.9

Poverty

All people 12.6%

Under 18 years 11.2%

18 and over 12.8%

Married-couple families 0.4%

Female-led households 28.8%

Income support

Source	% of households
Social Security	37.3%
Retirement income	33.5%
Supplemental Security	2.3%
Cash public assistance	2.3%
Food stamps / SNAP	5.6%

Health indicators

Condition	%
Obesity	36.6%
High blood pressure	38.2%
High cholesterol	34.6%
Diabetes	14.3%
Heart disease	9.4%
Stroke	4.8%
Asthma	12.7%
Arthritis	33.1%
Kidney disease	4.1%
Pulmonary disease	10.2%
Cancer	8.1%

Behavior / access	%
Smoking	22.9%
Binge drinking	14.2%
No physical activity	25.3%
Less than 7 hrs sleep	34.5%
Depression	27.0%
Fair or poor health	21.9%
Poor mental health	17.3%
Poor physical health	15.8%
No health insurance	12.3%
Visited doctor (checkup)	71.4%
Visited dentist	54.6%
Cholesterol screening	88.3%
Teeth loss	17.4%

Veterans & disability

Veterans	Count	%
Civilian veterans	183	14.3%

Disability	%
Any disability	21.3%
Under 18	3.4%
18–64 years	15.0%
65 and over	46.9%

Health insurance coverage

Type	%
Private insurance	70.1%
Public insurance	39.8%
No insurance	7.9%
Uninsured under 19	7.4%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	1,462	95.1%
Spanish	34	2.3%
Other Indo-European	23	1.6%
Asian & Pacific Islander	0	0.0%
Other languages	3	0.2%

Place of birth & citizenship

Origin	Count	%
Native born (US)	1,491	96.9%
Born in same state	1,454	94.5%
Born in different state	1,008	65.5%
Foreign born	37	2.4%
Naturalized citizen	47	3.1%
Not a US citizen	17	36.2%

Ancestry

Ancestry	Count	%
French	151	9.8%
Italian	143	9.3%
Arab	117	7.6%

Ancestry	Count	%
Polish	52	3.4%
English	6	0.4%
Dutch	4	0.3%

Technology access

Metric	% of households
Computer access	44.5%
Internet access	88.0%

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

Frequently asked questions about ZIP code 99116

What city is ZIP code 99116 in?

ZIP code 99116 is primarily assigned to Coulee Dam, Washington.

What county is ZIP code 99116 in?

ZIP code 99116 falls within Okanogan County, Washington.

Does ZIP code 99116 have an older population?

26% of residents in ZIP code 99116 are 65 or older, above the national average of ~17%.

Does ZIP code 99116 have a large veteran population?

14% of civilians in ZIP code 99116 are veterans, above the national average of ~7%.

Does ZIP code 99116 have a large retiree population?

37% of households in ZIP code 99116 receive Social Security income, suggesting a significant retiree or disability population.

What is the typical home value in ZIP code 99116?

The median home value in ZIP code 99116 is $189,600.

What timezone is ZIP code 99116 in?

ZIP code 99116 observes the PST timezone.