Carter County, MT ZIP Codes
Montana (MT) · 5 ZIP codes · 5 cities
5
ZIP codes
1,428
population (2021)
+23.1%
pop change since 2010
30011
FIPS code
Carter County ZIP code map
About Carter County
Carter County is located in Montana and contains 5 ZIP codes across 5 cities and communities.
The county's population was 1,428 as of 2021,
an increase of
23.1% from 1,160 in 2010.
The timezone is Pacific Time (observes DST).
The Federal Information Processing System (FIPS) code for Carter County is 30011.
| Population | |
|---|---|
| 2021 population | 1,428 |
| 2010 population | 1,160 |
| Change | +23.1% |
| County details | |
|---|---|
| State | Montana |
| FIPS code | 30011 |
| Timezone | Pacific |
| Daylight saving | Yes |
Cities in Carter County
ZIP codes for Carter County, MT (5)
| ZIP code | City | County | Map |
|---|---|---|---|
| 59311 | Alzada | Carter | View map |
| 59316 | Boyes | Carter | View map |
| 59319 | Capitol | Carter | View map |
| 59324 | Ekalaka | Carter | View map |
| 59332 | Hammond | Carter | View map |
Demographics & statistics
1,034
Population
58.0
Median age
$41,870
Median household income
$30,947
Per capita income
$422,740
Median home value
$123
Median monthly rent
70.8%
Home ownership
10.1%
Poverty rate
1.0%
Unemployment
511
Housing units
19.4%
Bachelor's or higher
Age distribution
Male
Female
31
Under 5
15
35
5–9
16
12
10–14
6
36
15–19
17
36
20–24
16
44
25–34
20
60
35–44
28
53
45–54
25
74
55–59
35
98
60–64
45
141
65–74
66
62
75–84
28
24
85+
11
← Male
Female →
Age summary
| Group | Count | % |
|---|---|---|
| Under 18 | 154 | 9.9% |
| 18 and over | 880 | 90.1% |
| 65 and over | 332 | 36.2% |
| Median age | 58.0 years | |
Race & ethnicity
White
87.8%
Two or more races
5.6%
Hispanic or Latino
4.3%
American Indian / Alaska Native
1.3%
Other race
1%
| Group | Count | % |
|---|---|---|
| White | 948 | 87.8% |
| Two or more races | 61 | 5.6% |
| Hispanic or Latino | 46 | 4.3% |
| American Indian / Alaska Native | 14 | 1.3% |
| Other race | 11 | 1% |
Household income
Under $10k
1.2%
$10k–$15k
3.1%
$15k–$25k
6.5%
$25k–$35k
12.2%
$35k–$50k
36.0%
$50k–$75k
8.1%
$75k–$100k
12.2%
$100k–$150k
14.5%
$150k–$200k
5.1%
$200k+
1.2%
| Range | % of households |
|---|---|
| Under $10k | 1.2% |
| $10k–$15k | 3.1% |
| $15k–$25k | 6.5% |
| $25k–$35k | 12.2% |
| $35k–$50k | 36.0% |
| $50k–$75k | 8.1% |
| $75k–$100k | 12.2% |
| $100k–$150k | 14.5% |
| $150k–$200k | 5.1% |
| $200k+ | 1.2% |
| Median income | $41,870 |
Housing
Home values
Under $50k
17.9%
$50k–$100k
11.8%
$100k–$150k
9.5%
$150k–$200k
8.6%
$200k–$300k
12.7%
$300k–$500k
6.3%
$500k–$1M
5.0%
$1M+
28.1%
Housing overview
| Metric | Value |
|---|---|
| Median home value | $422,740 |
| Median rent / month | $123 |
| Owner occupied | 70.8% |
| Renter occupied | 29.2% |
| Vacant | 21.6% |
| Single-family detached | 66.8% |
| Large apartment buildings | 0.0% |
| Mobile homes | 31.9% |
| Median rooms | 6.7 |
| Avg household size (owned) | 2.08 |
Year built
| Era | % |
|---|---|
| 2020 or later | 0.2% |
| 2010–2019 | 16.5% |
| 2000–2009 | 9.4% |
| 1990–1999 | 6.2% |
| 1980–1989 | 8.0% |
| 1970–1979 | 14.0% |
| 1960–1969 | 10.4% |
| 1950–1959 | 20.6% |
| 1940–1949 | 1.8% |
| 1939 or earlier | 12.9% |
Bedrooms
| Size | % of units |
|---|---|
| No bedroom (studio) | 0.2% |
| 1 bedroom | 4.0% |
| 2 bedrooms | 16.8% |
| 3 bedrooms | 49.2% |
| 4 bedrooms | 19.2% |
| 5+ bedrooms | 10.7% |
Vehicles per household
| Vehicles | % of households |
|---|---|
| No vehicle | 1.4% |
| 1 vehicle | 12.1% |
| 2 vehicles | 33.9% |
| 3 or more | 52.5% |
Heating fuel
| Fuel type | % |
|---|---|
| Utility gas | 1.9% |
| Electricity | 7.4% |
| Propane / LP gas | 72.3% |
| Wood | 14.9% |
Households & families
| Household type | Count | % |
|---|---|---|
| Married-couple family | 246 | 52.5% |
| Cohabiting couple | 13 | 1.0% |
| Male householder, no spouse | 148 | 37.9% |
| Female householder, no spouse | 108 | 8.6% |
| Households with children under 18 | 60 | 6.8% |
| Households with seniors (65+) | 225 | 41.5% |
| Average household size | 1.91 | |
Marital status
| Status | Male | Female |
|---|---|---|
| Never married | 14.1% | 6.7% |
| Married | 75.5% | 86.0% |
| Separated | 0.0% | 0.0% |
| Widowed | 7.3% | 4.4% |
| Divorced | 3.1% | 2.9% |
Education
Less than 9th grade
0.6%
Some HS, no diploma
2.6%
HS graduate
30.5%
Some college, no degree
39.3%
Associate's degree
7.6%
Bachelor's degree
16.2%
Graduate / professional
3.2%
| Metric | % |
|---|---|
| HS diploma or higher | 96.8% |
| Bachelor's or higher | 19.4% |
School enrollment (ages 3–17)
| Type | Count | % |
|---|---|---|
| Nursery / preschool | 2 | 2.0% |
| Kindergarten | 6 | 7.6% |
| Elementary school | 66 | 49.9% |
| High school | 44 | 8.1% |
| College / grad school | 23 | 12.4% |
Employment
Industry of employment
Agriculture & mining
59.8%
Retail trade
13.3%
Construction
6.7%
Education & healthcare
6.0%
Public administration
4.9%
Other services
2.8%
Transportation & utilities
2.2%
Professional & management
1.8%
Finance & real estate
1.1%
Arts, food & hospitality
0.8%
Manufacturing
0.3%
Information
0.3%
Wholesale trade
0.1%
Occupation
| Category | % |
|---|---|
| Management, business & arts | 60.9% |
| Service | 4.9% |
| Sales & office | 17.7% |
| Natural resources & construction | 14.5% |
| Production & transportation | 2.0% |
Employment type
| Type | % |
|---|---|
| Private sector | 43.3% |
| Government | 10.3% |
| Self-employed | 46.0% |
| Unpaid family workers | 0.4% |
Commute
| Method | % |
|---|---|
| Drive alone | 50.5% |
| Carpool | 1.2% |
| Public transit | 0.0% |
| Walk | 5.6% |
| Other means | 1.4% |
| Avg commute (minutes) | 10.9 |
Poverty
All people
10.1%
Under 18 years
16.0%
18 and over
8.4%
Married-couple families
8.0%
Female-led households
3.1%
Income support
| Source | % of households |
|---|---|
| Social Security | 32.0% |
| Retirement income | 8.4% |
| Supplemental Security | 1.0% |
| Cash public assistance | 0.0% |
| Food stamps / SNAP | 3.0% |
Health indicators
| Condition | % |
|---|---|
| High blood pressure | 20.1% |
| High cholesterol | 20.2% |
| Heart disease | 4.7% |
| Stroke | 2.2% |
| Asthma | 6.0% |
| Arthritis | 17.5% |
| Kidney disease | 2.0% |
| Pulmonary disease | 4.7% |
| Cancer | 4.9% |
| Behavior / access | % |
|---|---|
| Binge drinking | 12.0% |
| No physical activity | 13.6% |
| Less than 7 hrs sleep | 17.9% |
| Fair or poor health | 8.3% |
| Poor mental health | 7.6% |
| Poor physical health | 7.0% |
| No health insurance | 6.7% |
| Visited doctor (checkup) | 42.3% |
| Visited dentist | 39.0% |
| Cholesterol screening | 53.7% |
| Teeth loss | 8.5% |
Veterans & disability
| Veterans | Count | % |
|---|---|---|
| Civilian veterans | 80 | 9.0% |
| Disability | % |
|---|---|
| Any disability | 10.9% |
| Under 18 | 1.2% |
| 18–64 years | 4.6% |
| 65 and over | 23.0% |
Health insurance coverage
| Type | % |
|---|---|
| Private insurance | 51.7% |
| Public insurance | 43.6% |
| Uninsured under 19 | 29.9% |
Language & origin
Language spoken at home (age 5+)
| Language | Count | % |
|---|---|---|
| English only | 988 | 96.3% |
| Spanish | 0 | 0.0% |
| 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) | 1,030 | 99.9% |
| Born in same state | 1,030 | 99.9% |
| Born in different state | 457 | 42.3% |
| Foreign born | 0 | 0.0% |
| Naturalized citizen | 4 | 0.1% |
| Not a US citizen | 1 | 5.0% |
Ancestry
| Ancestry | Count | % |
|---|---|---|
| French | 109 | 10.5% |
| Italian | 106 | 10.3% |
| Polish | 98 | 9.5% |
| Arab | 55 | 5.3% |
| Ancestry | Count | % |
|---|---|---|
| Dutch | 17 | 1.6% |
| German | 12 | 1.2% |
| English | 11 | 1.1% |
| Irish | 6 | 0.6% |
Technology access
| Metric | % of households |
|---|---|
| Computer access | 54.3% |
| Internet access | 88.3% |
Source: U.S. Census Bureau, American Community Survey 2025 estimates.
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