🇺🇸 United States ZIP Code

STANDARD

59910

Big Arm

ZIP Code 59910 is a standard zip code serving Big Arm, Big Arm, Montana (MT), in Lake County, United States. It has an estimated population of 356 with a median household income of $65,221. The area falls within the America/Denver timezone.

Median Household Income vs. National Average

Location

Country: 🇺🇸 United States
State / Province: Montana (MT)
County: Lake
City: Big Arm
Timezone: America/Denver

Coordinates

Latitude: 47.795200
Longitude: -114.302000

Geographic Details

Land Area: 55.40 mi²
Water Area: 27.38 mi²
Population Density: 6.0 people per mi² (5th percentile)
Bounding Box: 47.885472°N, 47.688907°S, -114.101635°E, -114.489559°W

With 356 residents spread across 55.40 square miles, this area has a population density of 6.0 people per square mile.

Demographics

356

Population

10th percentile

$65,221

Median Income

80th percentile

$322,200

Median Home Value

85th percentile

55.40 mi²

Land Area

The median household income in 59910 is $65,221, and the median home value is $322,200. This places the area in the top 25% nationally for household income.

Housing

419

Total Units

155

Occupied Units

37.0%

Occupancy Rate

Similar ZIP Codes in Montana

ZIP codes with similar median household income in Montana.

59037

Huntley

$64,740

59063

Park City

$63,523

59079

Shepherd

$64,816

59105

Billings

$56,986

59270

Sidney

$62,987

59404

Great Falls

$55,448

59412

Belt

$57,500

59602

Helena

$63,219

Frequently Asked Questions

What information is available for each ZIP code?

Each ZIP code page shows city, state, county, geographic coordinates, timezone, population, median household income, median home value, housing units, land area, population density, commute time, educational attainment, area codes, and ZIP code type (Standard, PO Box, or Unique).

What are the different types of ZIP codes?

There are three types of ZIP codes: Standard (residential and commercial delivery areas), PO Box (assigned to post office box sections), and Unique (assigned to a single high-volume address like a government agency or large company). Standard ZIP codes are the most common.

How often is ZIP code data updated?

ZIP code assignments are updated quarterly by the USPS. Demographic data comes from the US Census Bureau's American Community Survey (ACS), which releases new 5-year estimates annually. ZipFYI updates its data to reflect the latest available information.

What is population density and why does it matter?

Population density measures the number of people per square mile in a ZIP code area. It helps identify urban vs. rural areas, affects real estate values, impacts service availability, and is used in market analysis. Dense urban ZIP codes may have 50,000+ people per square mile.

How are ZIP code boundaries determined?

ZIP code boundaries are determined by the USPS based on mail delivery routes, not political or geographic boundaries. They follow carrier routes and may cross city, county, or even state lines. Boundaries can change when the USPS reorganizes delivery operations.

What does median household income tell me about a ZIP code?

Median household income is the middle value when all household incomes in a ZIP code are sorted. Half of households earn more and half earn less. It is a better indicator of typical earnings than average income, which can be skewed by very high or very low outliers.