PlainZIP

Big Arm, MT · standard

ZIP Code 59910

Lake County, Montana - Census ACS demographics, housing tenure, and business patterns, benchmarked against every US ZIP.

356
3/sq mi
$99,886
Median income
$588,500
Median home value
25.5%
Bachelor's or higher

The verdict

Big Arm pairs an upper-quartile household income with top-decile home values, in a rural, homeowner-dominated area.

Top 19%
household income, US ZIPs
Top 10%
home value, US ZIPs
3
people per sq mi
77%
owner-occupied homes

Source: U.S. Census Bureau ACS 5-Year Estimates (2019–2023). Percentiles rank ZIP 59910 against every reporting US ZIP.

ZIP code 59910 is a sparsely populated ZIP (a standard USPS delivery area) in Big Arm, Lake County, Montana, home to just 356 residents across 142.4 square miles, a density of 3 people per square mile, in the Denver time zone.

ZIP 59910 lands in the middle-income range, with a median household income of $99,886 (43% above the Montana average), while per-capita income is $50,715. The poverty rate stands at 21.1% and the unemployment rate at 16.5%. Housing costs here run $588,500 for a typical home value (80% above the state average), with rent averaging - a month; 77.3% of homes are owner-occupied.

Educational attainment sits below the national norm: 25.5% of adults hold a bachelor's degree or higher, the median age is 40.8, and the average commute is -. We also surface 5 nearby ZIP codes within roughly 10 miles and 6 additional ZIPs sharing Lake County, so you can benchmark 59910 against its immediate geography rather than a national average alone.

Every figure on this page is sourced from the U.S. Census Bureau American Community Survey 5-Year Estimates (including median rent) and the FHFA House Price Index, no estimates, no proprietary scoring. Verify with Census →

Source: U.S. Census Bureau, American Community Survey 5-Year Estimates + ZIP Code Business Patterns + FHFA HPI ACS demographics and median rent, ZBP business establishments, FHFA HPI for ZIP 59910, Big Arm, MT · 2023 Census ACS 5-Year Estimates use a rolling 60-month sample for stable small-geography estimates; ZBP updated annually; FHFA HPI updated quarterly/annually.

Quick Facts

356

Population

142.4

Area (sq mi)

3

People / sq mi

Denver

Time Zone

standard

ZIP Type

Neighborhood Scorecard
Get an A-F grade across income, safety, housing, rent, education, commute, and childcare for this ZIP code.
View Scorecard →

Who lives in ZIP 59910?

40.8

Median Age

51.2%

Male

48.8%

Female

0.0%

Foreign-Born

White 66.0%
African American 0.0%
Asian 0.0%
American Indian or Alaska Native 28.0%
Native Hawaiian or Pacific Islander 5.9%
Two or More Ethnicities 0.0%
Hispanic or Latino 0.0%

Hispanic or Latino is an ethnicity category from the Census Bureau and may overlap with other categories above.

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

How much do residents earn?

$99,886

Median Household Income

+43% vs state

$50,715

Per Capita Income

21.1%

Poverty Rate

16.5%

Unemployment Rate

How ZIP 59910 ranks nationally

Big Arm, MT household income vs. every US ZIP code

Median household income, the full national distribution, with this ZIP marked

$99,886 Top 19% higher than 81% of 30,318 US ZIPs

$0–$20,000: 118 US ZIPs (0%). Below this entry. $20,000–$40,000: 1,573 US ZIPs (5%). Below this entry. $40,000–$60,000: 7,092 US ZIPs (23%). Below this entry. $60,000–$80,000: 9,980 US ZIPs (33%). Below this entry. $80,000–$100,000: 5,778 US ZIPs (19%). This entry sits in this band. $100,000–$120,000: 2,855 US ZIPs (9%). Above this entry. $120,000–$140,000: 1,362 US ZIPs (4%). Above this entry. $140,000–$160,000: 686 US ZIPs (2%). Above this entry. $160,000–$180,000: 364 US ZIPs (1%). Above this entry. $180,000–$200,000: 186 US ZIPs (1%). Above this entry. $200,000–$220,000: 324 US ZIPs (1%). Above this entry. This ZIP $0 $200K+ every reporting US ZIP, bucketed by value

Each bar is a $20K-wide band; taller bars hold more US ZIPs. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source U.S. Census Bureau, ACS 5-Year Estimates · 2019–2023

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What is the education profile here?

High School Graduate or Higher 38.4%
Bachelor's Degree or Higher 25.5%

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What does housing look like?

457

Total Housing Units

291

Occupied Units

166

Vacant Units

2.38

Avg Household Size

Occupancy Type

Owner 77.3%
Renter 22.7%

$588,500

Median Home Value

+80% vs state

1991

Median Year Built

Source: U.S. Census Bureau, ACS 5-Year Estimates (2023)

What businesses operate in this ZIP?

Census Bureau data shows 7 business establishments in ZIP 59910, employing approximately 9 people with a combined annual payroll of $662,000.

7

Businesses

9

Employees

$662K

Annual Payroll

0

Industry Sectors

Source: U.S. Census Bureau, ZIP Code Business Patterns (ZBP), 2023. Employment figures may include noise for disclosure avoidance.

Nearby ZIP Codes

Want a side-by-side? Compare 59910 vs 59914 →

ZIP 59910 vs its nearest neighbors, by population

Resident population of this ZIP and the closest reporting ZIP codes within ~10 miles.

residents

What this shows Among its immediate neighbors, ZIP 59910 ranks #3 by population - useful context the national average alone can't give.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023

ZIP 59910 vs its nearest neighbors, by median income

Median household income of this ZIP and the closest reporting ZIP codes within ~10 miles.

median income

What this shows By household income, ZIP 59910 ranks #3 of 6 neighboring ZIPs, local affluence varies block to block, not just metro to metro.

Source U.S. Census Bureau · ACS 5-Year Estimates As of 2019–2023
ZIP Code City Population Distance
59914 Dayton, MT 234 4.5 mi
59915 Elmo, MT 403 5.7 mi
59929 Proctor, MT 237 9.3 mi
59860 Polson, MT 9,913 8.6 mi
59931 Rollins, MT 328 10.0 mi

More ZIP Codes in Lake County

59860 standard
Polson, MT
Pop: 9,913
59864 standard
Ronan, MT
Pop: 6,752
59865 standard
Saint Ignatius, MT
Pop: 3,185
59821 standard
Arlee, MT
Pop: 2,377
59824 standard
Charlo, MT
Pop: 1,792
59855 standard
Pablo, MT
Pop: 957

Related Areas

Lake County Big Arm, MT Montana

Frequently Asked Questions

What county is ZIP code 59910 in? ▼
ZIP code 59910 (Big Arm) is located in Lake County, Montana. Lake County contains multiple ZIP codes, see the full list at /counties/lake-mt.
What is the population of ZIP code 59910? ▼
ZIP code 59910 in Big Arm, MT has a population of 356 according to the Census Bureau ACS 2023 estimates.
What is the median household income in ZIP 59910? ▼
The median household income in ZIP 59910 is $99,886, which is 31% above the national average of $76,288.
What is the average home value in ZIP 59910? ▼
The median home value in ZIP 59910 is $588,500, which is 112% above the national average of $278,155.
What is the demographic makeup of ZIP 59910? ▼
The largest racial group in ZIP 59910 is White at 66.0%.
How many businesses are in ZIP code 59910? ▼
ZIP code 59910 has 7 business establishments employing approximately 9 people, according to Census Bureau ZIP Code Business Patterns (ZBP) 2023 data.
What is the education level in ZIP code 59910? ▼
In ZIP code 59910, 38.4% of residents aged 25+ have a high school diploma or higher, and 25.5% hold a bachelor's degree or higher. These figures come from the Census Bureau ACS 5-Year Estimates (2023).
What percentage of residents own vs. rent in ZIP 59910? ▼
In ZIP code 59910, approximately 77.3% of occupied housing units are owner-occupied and 22.7% are renter-occupied, based on Census ACS 2023 data.
What is the poverty rate in ZIP code 59910? ▼
The poverty rate in ZIP code 59910 is 21.1% according to Census Bureau ACS 2023 estimates. This measures the percentage of the population living below the federal poverty threshold.

Read our methodology to see how this data is sourced, computed, and verified.