83821 ZIP Code — Coolin, ID

Bonner County, Idaho

ZIP code 83821 is located in Coolin, Idaho, within Bonner County. It covers approximately 49.67 square miles and serves a population of 216 residents. This is a standard ZIP code in the Pacific (PT) timezone, served by area code 208.

About ZIP code 83821

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 2000s, giving the area an established character. Owner-occupancy is high at 92%, well above the national average.

The dominant occupation class is management, business, and professional, with professional and management as the leading industry. Remote work is prevalent — 30% of workers work from home.

Educational attainment is high — 56% of residents hold a bachelor's degree or higher, well above the national average of 33%.

16% of residents lack health insurance, above the national average.

Notable community characteristics include a notable veteran presence at 21% of civilians, above the national average of 7%.

Overall, ZIP code 83821 reflects a community defined by a highly educated population, a strong veteran community, high homeownership, a high rate of remote workers, and a significant Social Security-dependent population.

216

population

49.67

sq mi land

Standard

ZIP type

Pacific (PT)

timezone

83821 ZIP code map

Cities in ZIP code 83821

Below are the cities the US Postal Service accepts for ZIP code 83821. Using any city not on this list may result in mail delivery delays.

City	Status
Coolin	Preferred

Nearby ZIP codes

83848 Nordman (4.9 mi) 83805 Bonners Ferry (11.2 mi)

Demographics updated 05/2026

Population
Total population	216
Population density	4 / sq mi
State FIPS	16
County FIPS	017

Geography
Land area	49.67 sq mi
Water area	35.34 sq mi
Latitude	48.6605
Longitude	-116.8378
Timezone	Pacific (PT)
Area code	208

Total population by age

Gender

Race & ethnicity

Economics updated 05/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	20.8%	48.3%	41.8%
$50k – $100k	17.9%	31.9%	34.0%
$100k – $200k	23.6%	16.1%	19.5%
Over $200k	37.7%	3.7%	4.7%

Demographics & statistics

216

Population

People per sq mi

56.9

Median age

Median household income

$94,275

Per capita income

Median home value

Median monthly rent

91.6%

Home ownership

0.0%

Poverty rate

0.0%

Unemployment

938

Housing units

55.7%

Bachelor's or higher

Age distribution

Male Female

Under 5

10–14

15–19

25–34

35–44

45–54

55–59

65–74

75–84

← Male

Female →

Age summary

Group	Count	%
Under 18	24	11.1%
18 and over	192	88.9%
65 and over	82	38.0%
Median age	56.9 years

Race & ethnicity

White 91.7%

Asian 4.1%

Two or more races 2.3%

Hispanic or Latino 0.9%

Other race 0.9%

Group	Count	%
White	200	91.7%
Asian	9	4.1%
Two or more races	5	2.3%
Hispanic or Latino	2	0.9%
Other race	2	0.9%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	20.8%	48.3%	41.8%
$50k – $100k	17.9%	31.9%	34.0%
$100k – $200k	23.6%	16.1%	19.5%
Over $200k	37.7%	3.7%	4.7%

$35k–$50k 5.3%

$50k–$75k 24.2%

$100k–$150k 24.2%

$200k+ 46.3%

Range	% of households
$35k–$50k	5.3%
$50k–$75k	24.2%
$100k–$150k	24.2%
$200k+	46.3%
Median income	$0

Housing

Home values

$100k–$150k 12.6%

$150k–$200k 26.4%

$200k–$300k 16.1%

$300k–$500k 5.7%

$500k–$1M 33.3%

$1M+ 5.7%

Housing overview

Metric	Value
Median home value	$0
Median rent / month	$0
Owner occupied	91.6%
Renter occupied	8.4%
Vacant	90.0%
Single-family detached	95.6%
Large apartment buildings	0.0%
Mobile homes	4.4%
Median rooms	5.5
Avg household size (owned)	2.10

Year built

Era	%
2020 or later	1.0%
2010–2019	10.7%
2000–2009	25.9%
1990–1999	17.2%
1980–1989	5.8%
1970–1979	10.1%
1960–1969	18.5%
1950–1959	10.8%
1940–1949	0.0%
1939 or earlier	0.0%

Bedrooms

Size	% of units
No bedroom (studio)	0.0%
1 bedroom	3.9%
2 bedrooms	33.3%
3 bedrooms	39.7%
4 bedrooms	6.6%
5+ bedrooms	16.5%

Vehicles per household

Vehicles	% of households
No vehicle	24.2%
1 vehicle	4.2%
2 vehicles	37.9%
3 or more	33.7%

Heating fuel

Fuel type	%
Electricity	20.0%
Propane / LP gas	29.5%
Wood	50.5%

Households & families

Household type	Count	%
Married-couple family	95	100.0%
Cohabiting couple	0	0.0%
Male householder, no spouse	0	0.0%
Female householder, no spouse	0	0.0%
Households with children under 18	19	20.0%
Households with seniors (65+)	53	55.8%
Average household size	2.13

Marital status

Status	Male	Female
Never married	1.8%	8.8%
Married	87.2%	91.2%
Separated	0.0%	0.0%
Widowed	0.0%	0.0%
Divorced	11.0%	0.0%

Education

Less than 9th grade 0.0%

Some HS, no diploma 2.1%

HS graduate 19.8%

Some college, no degree 15.6%

Associate's degree 6.8%

Bachelor's degree 10.9%

Graduate / professional 44.8%

Metric	%
HS diploma or higher	97.9%
Bachelor's or higher	55.7%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	0	0.0%
Kindergarten	0	0.0%
Elementary school	0	0.0%
High school	19	100.0%
College / grad school	0	0.0%

Employment

Industry of employment

Professional & management 25.7%

Education & healthcare 23.9%

Arts, food & hospitality 23.9%

Agriculture & mining 14.7%

Finance & real estate 10.1%

Manufacturing 1.8%

Occupation

Category	%
Management, business & arts	65.1%
Service	23.9%
Sales & office	10.1%
Natural resources & construction	0.9%
Production & transportation	0.0%

Employment type

Type	%
Private sector	87.2%
Government	0.0%
Self-employed	12.8%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	55.0%
Carpool	0.0%
Public transit	0.0%
Walk	14.7%
Work from home	30.3%
Other means	0.0%
Avg commute (minutes)	0.0

Poverty

All people 0.0%

Under 18 years 0.0%

18 and over 0.0%

Married-couple families 0.0%

Female-led households 0.0%

Income support

Source	% of households
Social Security	55.8%
Retirement income	28.4%
Supplemental Security	0.0%
Cash public assistance	0.0%
Food stamps / SNAP	0.0%

Health indicators

Condition	%
Obesity	29.5%
High blood pressure	39.0%
High cholesterol	39.5%
Diabetes	12.8%
Heart disease	9.6%
Stroke	4.1%
Asthma	9.0%
Arthritis	33.2%
Kidney disease	3.9%
Pulmonary disease	8.4%
Cancer	10.0%

Behavior / access	%
Smoking	14.6%
Binge drinking	12.0%
No physical activity	22.1%
Less than 7 hrs sleep	28.2%
Depression	16.7%
Fair or poor health	14.8%
Poor mental health	10.7%
Poor physical health	11.9%
No health insurance	12.1%
Visited doctor (checkup)	76.1%
Visited dentist	70.1%
Cholesterol screening	92.6%
Teeth loss	12.7%

Veterans & disability

Veterans	Count	%
Civilian veterans	40	20.8%

Disability	%
Any disability	0.5%
Under 18	0.0%
18–64 years	0.0%
65 and over	1.2%

Health insurance coverage

Type	%
Private insurance	71.3%
Public insurance	43.1%
No insurance	16.2%
Uninsured under 19	20.8%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	211	97.7%
Spanish	1	0.5%
Other Indo-European	1	0.5%
Asian & Pacific Islander	0	0.0%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	181	83.8%
Born in same state	181	83.8%
Born in different state	20	9.3%
Foreign born	0	0.0%
Naturalized citizen	35	16.2%
Not a US citizen	28	80.0%

Ancestry

Ancestry	Count	%
Dutch	35	16.2%
Polish	8	3.7%
French	8	3.7%

Ancestry	Count	%
German	5	2.3%
Italian	4	1.9%

Technology access

Metric	% of households
Computer access	44.0%
Internet access	94.7%

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

Frequently asked questions about ZIP code 83821

What city is ZIP code 83821 in?

ZIP code 83821 is primarily assigned to Coolin, Idaho.

What county is ZIP code 83821 in?

ZIP code 83821 falls within Bonner County, Idaho.

Does ZIP code 83821 have an older population?

38% of residents in ZIP code 83821 are 65 or older, above the national average of ~17%.

Does ZIP code 83821 have a large retiree population?

56% of households in ZIP code 83821 receive Social Security income, suggesting a significant retiree or disability population.

Is ZIP code 83821 mostly owner-occupied?

92% of occupied units in ZIP code 83821 are owner-occupied, well above the national average.

How educated is the population of ZIP code 83821?

56% of residents hold a bachelor's degree or higher — well above the national average of ~33%, reflecting a highly educated population.

What timezone is ZIP code 83821 in?

ZIP code 83821 observes the PST timezone.