Post Falls ZIP Code List — Kootenai County, ID

There are 2 unique ZIP codes in Post Falls, Idaho. Area code: 208.

ZIP codes

77.58

sq mi land

1.87

sq mi water

208

area code

Post Falls, ID ZIP code map

About Post Falls, ID

Post Falls is a charming city located in Idaho, specifically in Kootenai County. Known for its beautiful scenery and outdoor recreational opportunities, Post Falls offers a welcoming environment for both residents and visitors alike. The city boasts a vibrant community, with a mix of suburban and rural elements that provide a unique lifestyle.

Location & geography

Post Falls is situated in the northern part of Idaho, making it a gateway to the scenic beauty of the region. It is conveniently located approximately 30 miles east of Spokane, Washington, and about 7 miles from Coeur d'Alene, Idaho. The city spans a land area of 77.58 square miles and includes a water area of 1.87 square miles, enhancing its picturesque landscape.

Community & economy

The community in Post Falls is characterized by its friendly atmosphere and strong local values. The economy is diverse, with industries such as manufacturing, retail, and service sectors playing significant roles in daily life. Residents enjoy a blend of urban amenities and outdoor activities, with parks and recreational facilities contributing to a high quality of life.

Transportation

Post Falls is well-served by major highways, including Interstate 90, which provides easy access to other regions. The nearest named airport is Spokane International Airport, located about 30 miles away, facilitating air travel for residents and visitors. Public transportation options are limited, encouraging a car-dependent lifestyle.

History

Post Falls was founded in the late 19th century, initially established as a mill town due to the powerful falls along the Spokane River. Over the years, the area transitioned from its agricultural roots to a more diverse economy, supporting growth in various sectors. Notable events include the expansion of the city during the 1990s, which transformed it into a vibrant residential community.

Did you know?

One surprising fact about Post Falls is the presence of the Post Falls Dam, which plays a vital role in the region's hydroelectric power generation. Additionally, the city is home to several scenic parks and trails, making it a popular destination for outdoor enthusiasts.

ZIP codes for Post Falls, ID (2)

ZIP code	City	County	Map
83854	Post Falls	Kootenai	View map
83877	Post Falls	Kootenai	View map

Demographics & statistics

50,378

Population

35.7

Median age

$69,372

Median household income

$30,665

Per capita income

$375,400

Median home value

$1,207

Median monthly rent

70.8%

Home ownership

13.4%

Poverty rate

3.7%

Unemployment

1,399

Housing units

21.4%

Bachelor's or higher

Age distribution

Male Female

1,934

Under 5

2,017

1,659

5–9

1,730

1,716

10–14

1,789

1,672

15–19

1,743

1,241

20–24

1,295

3,864

25–34

4,030

3,205

35–44

3,342

2,691

45–54

2,806

1,565

55–59

1,631

1,425

60–64

1,486

2,316

65–74

2,415

1,046

75–84

1,091

327

85+

342

← Male

Female →

Age summary

Group	Count	%
Under 18	13,259	26.3%
18 and over	37,119	73.7%
65 and over	7,537	15.0%
Median age	35.7 years

Race & ethnicity

White 85.5%

Two or more races 7.4%

Hispanic or Latino 4.9%

Other race 0.9%

American Indian / Alaska Native 0.7%

Asian 0.4%

Black or African American 0.3%

Group	Count	%
White	45,307	85.5%
Two or more races	3,917	7.4%
Hispanic or Latino	2,591	4.9%
Other race	458	0.9%
American Indian / Alaska Native	350	0.7%
Asian	203	0.4%
Black or African American	141	0.3%

Household income

Under $10k 3.8%

$10k–$15k 2.9%

$15k–$25k 9.8%

$25k–$35k 6.3%

$35k–$50k 14.1%

$50k–$75k 18.2%

$75k–$100k 13.7%

$100k–$150k 20.7%

$150k–$200k 6.5%

$200k+ 3.9%

Range	% of households
Under $10k	3.8%
$10k–$15k	2.9%
$15k–$25k	9.8%
$25k–$35k	6.3%
$35k–$50k	14.1%
$50k–$75k	18.2%
$75k–$100k	13.7%
$100k–$150k	20.7%
$150k–$200k	6.5%
$200k+	3.9%
Median income	$69,372

Housing

Home values

Under $50k 7.0%

$50k–$100k 4.9%

$100k–$150k 2.8%

$150k–$200k 2.2%

$200k–$300k 17.9%

$300k–$500k 40.2%

$500k–$1M 21.8%

$1M+ 3.2%

Housing overview

Metric	Value
Median home value	$375,400
Median rent / month	$1,207
Owner occupied	70.8%
Renter occupied	29.2%
Vacant	5.6%
Single-family detached	69.6%
Large apartment buildings	4.6%
Mobile homes	10.9%
Median rooms	5.8
Avg household size (owned)	2.79

Year built

Era	%
2020 or later	2.5%
2010–2019	22.6%
2000–2009	22.1%
1990–1999	22.0%
1980–1989	9.0%
1970–1979	14.3%
1960–1969	3.0%
1950–1959	1.8%
1940–1949	0.4%
1939 or earlier	2.3%

Bedrooms

Size	% of units
No bedroom (studio)	0.7%
1 bedroom	5.3%
2 bedrooms	19.2%
3 bedrooms	50.5%
4 bedrooms	18.1%
5+ bedrooms	6.1%

Vehicles per household

Vehicles	% of households
No vehicle	4.1%
1 vehicle	23.5%
2 vehicles	43.2%
3 or more	29.2%

Heating fuel

Fuel type	%
Utility gas	58.0%
Electricity	35.8%
Propane / LP gas	1.9%
Wood	3.0%
Solar	0.3%
No fuel used	0.5%

Households & families

Household type	Count	%
Married-couple family	9,575	52.5%
Cohabiting couple	1,524	8.4%
Male householder, no spouse	2,600	14.3%
Female householder, no spouse	4,541	24.9%
Households with children under 18	6,200	34.0%
Households with seniors (65+)	5,414	29.7%
Average household size	2.74

Marital status

Status	Male	Female
Never married	30.4%	22.7%
Married	53.5%	50.6%
Separated	1.3%	2.8%
Widowed	2.0%	9.2%
Divorced	12.7%	14.6%

Education

Less than 9th grade 1.8%

Some HS, no diploma 6.4%

HS graduate 28.9%

Some college, no degree 32.1%

Associate's degree 9.4%

Bachelor's degree 16.0%

Graduate / professional 5.4%

Metric	%
HS diploma or higher	91.8%
Bachelor's or higher	21.4%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	815	7.2%
Kindergarten	978	8.6%
Elementary school	5,341	47.1%
High school	2,826	24.9%
College / grad school	1,385	12.2%

Employment

Industry of employment

Education & healthcare 22.8%

Retail trade 12.7%

Professional & management 10.3%

Arts, food & hospitality 10.2%

Manufacturing 10.1%

Construction 8.0%

Finance & real estate 6.9%

Transportation & utilities 4.3%

Other services 4.3%

Public administration 3.7%

Wholesale trade 2.5%

Agriculture & mining 2.3%

Information 1.9%

Occupation

Category	%
Management, business & arts	31.8%
Service	20.5%
Sales & office	21.2%
Natural resources & construction	11.1%
Production & transportation	15.4%

Employment type

Type	%
Private sector	84.8%
Government	8.7%
Self-employed	6.3%
Unpaid family workers	0.1%

Commute

Method	%
Drive alone	77.0%
Carpool	9.3%
Public transit	1.5%
Walk	0.8%
Other means	0.7%
Avg commute (minutes)	22.0

Poverty

All people 13.4%

Under 18 years 18.8%

18 and over 11.6%

Married-couple families 5.6%

Female-led households 26.8%

Income support

Source	% of households
Social Security	36.2%
Retirement income	24.6%
Supplemental Security	4.9%
Cash public assistance	4.7%
Food stamps / SNAP	9.9%

Health indicators

Condition	%
High blood pressure	30.2%
High cholesterol	29.0%
Heart disease	6.4%
Stroke	2.9%
Asthma	10.0%
Arthritis	24.6%
Kidney disease	2.8%
Pulmonary disease	6.7%
Cancer	6.4%

Behavior / access	%
Binge drinking	15.6%
No physical activity	22.9%
Less than 7 hrs sleep	31.9%
Fair or poor health	13.8%
Poor mental health	14.5%
Poor physical health	11.4%
No health insurance	15.7%
Visited doctor (checkup)	70.1%
Visited dentist	63.4%
Cholesterol screening	85.4%
Teeth loss	14.8%

Veterans & disability

Veterans	Count	%
Civilian veterans	3,405	9.2%

Disability	%
Any disability	15.8%
Under 18	6.7%
18–64 years	13.9%
65 and over	40.2%

Health insurance coverage

Type	%
Private insurance	63.7%
Public insurance	38.2%
Uninsured under 19	4.7%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	46,427	92.2%
Spanish	434	0.9%
Other Indo-European	222	0.5%
Asian & Pacific Islander	99	0.2%
Other languages	62	0.1%

Place of birth & citizenship

Origin	Count	%
Native born (US)	49,700	98.7%
Born in same state	49,224	97.7%
Born in different state	15,658	31.1%
Foreign born	476	0.9%
Naturalized citizen	678	1.3%
Not a US citizen	442	65.2%

Ancestry

Ancestry	Count	%
French	7,245	14.4%
Italian	4,385	8.7%
Polish	2,023	4%
Arab	1,714	3.4%
English	730	1.4%

Ancestry	Count	%
German	267	0.5%
Dutch	156	0.3%
Irish	137	0.3%
Norwegian	27	0.1%

Technology access

Metric	% of households
Computer access	36.2%
Internet access	95.0%

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

Frequently asked questions

What is the ZIP code for Post Falls, ID?

Post Falls, ID has one ZIP code: 83854.

What is the main ZIP code for Post Falls, ID?

The primary ZIP code for Post Falls, ID is 83854. The city uses area code 208 for phone service.

What county is Post Falls, ID in?

Post Falls is located in Kootenai County, Idaho.

How many ZIP codes are in Post Falls, ID?

Post Falls, ID has 1 ZIP code.

What is the ZIP code for downtown Post Falls and the area around the Post Falls Dam?

Downtown Post Falls and the Post Falls Dam area are located in ZIP code 83854, which covers the central business district and this iconic landmark on the Spokane River.

What ZIP code should I use for mailing packages to businesses in the Post Falls Industrial Park?

The Post Falls Industrial Park and surrounding commercial areas use ZIP code 83854, which serves all of Post Falls' industrial and commercial zones in Kootenai County.