59912 ZIP Code — Columbia Falls, MT

Flathead County, Montana

ZIP code 59912 is located in Columbia Falls, Montana, within Flathead County. It covers approximately 188.90 square miles and serves a population of 15,381 residents. This is a standard ZIP code in the Mountain (MT) timezone, served by area code 406.

About ZIP code 59912

The housing stock consists of predominantly single-family detached homes. Most homes were built in the 1990s, giving the area an established character. Median home value is $361,600. Owner-occupancy is high at 79%, well above the national average.

Median household income is $69,403. 32% 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 22 minutes is near the national average.

Educational attainment is near the national average, with 28% of residents holding a bachelor's degree or higher.

Overall, ZIP code 59912 reflects a community defined by high homeownership and a significant Social Security-dependent population.

15,381

population

188.90

sq mi land

Standard

ZIP type

Mountain (MT)

timezone

59912 ZIP code map

Cities in ZIP code 59912

Below are the cities the US Postal Service accepts for ZIP code 59912. Using any city not on this list may result in mail delivery delays.

City	Status
Columbia Falls	Acceptable
Columbia Falls	Preferred

Nearby ZIP codes

59937 Whitefish (18.7 mi)

Demographics updated 06/2026

Population
Total population	15,381
Population density	81 / sq mi
State FIPS	30
County FIPS	029

Geography
Land area	188.90 sq mi
Water area	3.29 sq mi
Latitude	48.4124
Longitude	-114.1795
Timezone	Mountain (MT)
Area code	406

Total population by age

Gender

Race & ethnicity

Economics updated 06/2026

Household income

Income range	This ZIP	County avg	State avg
Under $50k	44.2%	43.3%	44.2%
$50k – $100k	35.1%	33.5%	32.0%
$100k – $200k	16.5%	18.6%	19.2%
Over $200k	4.2%	4.6%	4.7%

Demographics & statistics

15,381

Population

People per sq mi

40.3

Median age

$69,403

Median household income

$34,663

Per capita income

$361,600

Median home value

$946

Median monthly rent

79.1%

Home ownership

8.1%

Poverty rate

2.6%

Unemployment

5,540

Housing units

28.0%

Bachelor's or higher

Age distribution

Male Female

410

Under 5

391

593

5–9

565

571

10–14

543

461

15–19

438

256

20–24

243

1,016

25–34

967

1,241

35–44

1,181

876

45–54

833

438

55–59

416

728

60–64

693

894

65–74

850

325

75–84

309

85+

← Male

Female →

Age summary

Group	Count	%
Under 18	3,615	23.5%
18 and over	11,766	76.5%
65 and over	2,521	16.4%
Median age	40.3 years

Race & ethnicity

White 89.7%

Two or more races 3.9%

Hispanic or Latino 3.1%

Other race 1.6%

Asian 0.9%

American Indian / Alaska Native 0.7%

Black or African American 0.1%

Group	Count	%
White	14,238	89.7%
Two or more races	626	3.9%
Hispanic or Latino	486	3.1%
Other race	248	1.6%
Asian	136	0.9%
American Indian / Alaska Native	119	0.7%
Black or African American	14	0.1%

Household income

Income range	This ZIP	County avg	State avg
Under $50k	44.2%	43.3%	44.2%
$50k – $100k	35.1%	33.5%	32.0%
$100k – $200k	16.5%	18.6%	19.2%
Over $200k	4.2%	4.6%	4.7%

Under $10k 3.5%

$10k–$15k 2.6%

$15k–$25k 8.6%

$25k–$35k 6.4%

$35k–$50k 14.1%

$50k–$75k 19.0%

$75k–$100k 14.6%

$100k–$150k 16.3%

$150k–$200k 7.4%

$200k+ 7.5%

Range	% of households
Under $10k	3.5%
$10k–$15k	2.6%
$15k–$25k	8.6%
$25k–$35k	6.4%
$35k–$50k	14.1%
$50k–$75k	19.0%
$75k–$100k	14.6%
$100k–$150k	16.3%
$150k–$200k	7.4%
$200k+	7.5%
Median income	$69,403

Housing

Home values

Under $50k 7.1%

$50k–$100k 2.8%

$100k–$150k 2.3%

$150k–$200k 5.8%

$200k–$300k 20.8%

$300k–$500k 30.1%

$500k–$1M 25.7%

$1M+ 5.3%

Housing overview

Metric	Value
Median home value	$361,600
Median rent / month	$946
Owner occupied	79.1%
Renter occupied	20.9%
Vacant	14.0%
Single-family detached	72.4%
Large apartment buildings	0.4%
Mobile homes	12.8%
Median rooms	5.5
Avg household size (owned)	2.63

Year built

Era	%
2020 or later	0.8%
2010–2019	13.7%
2000–2009	17.1%
1990–1999	18.2%
1980–1989	17.1%
1970–1979	18.1%
1960–1969	4.7%
1950–1959	3.1%
1940–1949	2.3%
1939 or earlier	5.0%

Bedrooms

Size	% of units
No bedroom (studio)	2.6%
1 bedroom	7.5%
2 bedrooms	22.5%
3 bedrooms	47.5%
4 bedrooms	15.7%
5+ bedrooms	4.2%

Vehicles per household

Vehicles	% of households
No vehicle	1.6%
1 vehicle	21.3%
2 vehicles	46.3%
3 or more	30.8%

Heating fuel

Fuel type	%
Utility gas	49.0%
Electricity	34.7%
Propane / LP gas	7.1%
Wood	8.7%
No fuel used	0.3%

Households & families

Household type	Count	%
Married-couple family	3,483	59.9%
Cohabiting couple	504	8.7%
Male householder, no spouse	912	15.7%
Female householder, no spouse	911	15.7%
Households with children under 18	1,833	31.5%
Households with seniors (65+)	1,647	28.3%
Average household size	2.63

Marital status

Status	Male	Female
Never married	28.8%	19.9%
Married	55.9%	62.1%
Separated	1.4%	2.6%
Widowed	2.3%	7.1%
Divorced	11.6%	8.2%

Education

Less than 9th grade 1.6%

Some HS, no diploma 3.6%

HS graduate 33.3%

Some college, no degree 20.2%

Associate's degree 13.3%

Bachelor's degree 20.1%

Graduate / professional 8.0%

Metric	%
HS diploma or higher	94.8%
Bachelor's or higher	28.0%

School enrollment (ages 3–17)

Type	Count	%
Nursery / preschool	300	9.9%
Kindergarten	186	6.1%
Elementary school	1,754	57.7%
High school	620	20.4%
College / grad school	182	6.0%

Employment

Industry of employment

Education & healthcare 16.2%

Construction 12.5%

Retail trade 11.4%

Arts, food & hospitality 11.4%

Manufacturing 11.3%

Professional & management 9.2%

Finance & real estate 6.7%

Public administration 5.7%

Agriculture & mining 4.5%

Other services 4.3%

Transportation & utilities 4.1%

Wholesale trade 1.5%

Information 1.3%

Occupation

Category	%
Management, business & arts	33.8%
Service	19.6%
Sales & office	18.5%
Natural resources & construction	14.2%
Production & transportation	13.9%

Employment type

Type	%
Private sector	77.9%
Government	12.1%
Self-employed	10.0%
Unpaid family workers	0.0%

Commute

Method	%
Drive alone	78.1%
Carpool	3.4%
Public transit	0.1%
Walk	1.5%
Work from home	15.5%
Other means	1.5%
Avg commute (minutes)	21.6

Poverty

All people 8.1%

Under 18 years 8.3%

18 and over 8.1%

Married-couple families 2.9%

Female-led households 26.0%

Income support

Source	% of households
Social Security	31.6%
Retirement income	18.7%
Supplemental Security	2.1%
Cash public assistance	2.3%
Food stamps / SNAP	6.6%

Health indicators

Condition	%
Obesity	29.2%
High blood pressure	28.8%
High cholesterol	28.8%
Diabetes	8.5%
Heart disease	6.3%
Stroke	3.0%
Asthma	10.1%
Arthritis	25.6%
Kidney disease	2.8%
Pulmonary disease	6.8%
Cancer	6.8%

Behavior / access	%
Smoking	18.8%
Binge drinking	21.8%
No physical activity	21.4%
Less than 7 hrs sleep	29.4%
Depression	24.0%
Fair or poor health	12.6%
Poor mental health	13.9%
Poor physical health	11.0%
No health insurance	11.9%
Visited doctor (checkup)	68.0%
Visited dentist	61.6%
Cholesterol screening	87.8%
Teeth loss	13.3%

Veterans & disability

Veterans	Count	%
Civilian veterans	1,149	9.8%

Disability	%
Any disability	9.0%
Under 18	0.8%
18–64 years	8.6%
65 and over	23.0%

Health insurance coverage

Type	%
Private insurance	60.7%
Public insurance	40.8%
No insurance	11.0%
Uninsured under 19	8.5%

Language & origin

Language spoken at home (age 5+)

Language	Count	%
English only	14,580	94.8%
Spanish	62	0.4%
Other Indo-European	33	0.2%
Asian & Pacific Islander	29	0.2%
Other languages	0	0.0%

Place of birth & citizenship

Origin	Count	%
Native born (US)	15,045	97.8%
Born in same state	14,957	97.2%
Born in different state	7,654	49.8%
Foreign born	88	0.6%
Naturalized citizen	336	2.2%
Not a US citizen	220	65.5%

Ancestry

Ancestry	Count	%
Italian	2,151	14%
French	2,132	13.9%
Polish	1,147	7.5%
Arab	1,095	7.1%
English	288	1.9%

Ancestry	Count	%
German	70	0.5%
Dutch	67	0.4%
Norwegian	48	0.3%
Irish	23	0.1%

Technology access

Metric	% of households
Computer access	37.8%
Internet access	95.7%

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

Frequently asked questions about ZIP code 59912

What city is ZIP code 59912 in?

ZIP code 59912 is primarily assigned to Columbia Falls, Montana.

What county is ZIP code 59912 in?

ZIP code 59912 falls within Flathead County, Montana.

What is the typical home value in ZIP code 59912?

The median home value in ZIP code 59912 is $361,600.

Does ZIP code 59912 have a large veteran population?

10% of civilians in ZIP code 59912 are veterans, above the national average of ~7%.

What is the population of ZIP code 59912?

ZIP code 59912 has an estimated population of 15,381 residents, with a density of 81 people per square mile.

What is the median household income in ZIP code 59912?

The median household income in ZIP code 59912 is $69,403, below the national median of ~$75,000.

What timezone is ZIP code 59912 in?

ZIP code 59912 observes the MST timezone.