59911 ZIP Code Profile, Map, Data & Demographics

ZIP Code Type: STANDARD
County: Flathead County
Centroid: Latitude 47.882, Longitude -113.965
Time Zone: Mountain Time Zone (UTC -7 hours)
Observes DST: Yes

ZIP Code 59911 has segments in 2 Counties (Flathead, Lake).

Businesses Addresses: 611
PO Box Addresses: 1,234
Residential Addresses: 4,897

Multi-Family Addresses: 1
Single Family Addresses: 4,896

The ZIP Code maps and database are updated 4 times per year.
Database updated: October 1, 2025, Maps updated: May 1, 2024.

Bigfork, MT 59911 Data & Demographics (As of July 1, 2025)

POPULATION
Total Population	9,428 (100%)
Population in Households	9,377 (99.5%)
Population in Families	7,635 (81.0%)
Population in Group Quarters¹	51 ( 0.5%)
Population Density	19
Diversity Index²	22


INCOME
Median Household Income	$84,539
Average Household Income	$114,768
% of Income for Mortgage⁴	54%
Per Capita Income	$51,328
Wealth Index⁵	127
Socioeconomic Status Index⁶	Moderate (62.3)

HOUSING
Total HU (Housing Units)	6,414 (100%)
Owner Occupied HU	3,339 (52.1%)
Renter Occupied HU	876 (13.7%)
Vacant Housing Units	2,199 (34.3%)
Median Home Value	$730,403
Average Home Value	$853,966
Housing Affordability Index³	46

HOUSEHOLDS
Total Households	4,215
Average Household Size	2.22
Family Households	2,789
Average Family Size	3.00

NOTES

Group Quarters - a place where people live or stay in a group living arrangement. Includes college residents halls, nursing facilities, military barracks, and correctional facilities.
The Diversity Index is a scale of 0 to 100 that represents the likelihood that two persons, chosen at random from the same area, belong to different races or ethnic groups. If an area's entire population belongs to one race AND one ethnic group, then the area has zero diversity. An area's diversity index increases to 100 when the population is evenly divided into two or more race/ethnic groups.
The Housing Affordability Index base is 100 and represents a balance point where a resident with a median household income can normally qualify to purchase a median price home. Values above 100 indicate increased affordability, while values below 100 indicate decreased affordability.
The % of Income for Mortgage quantifies the percentage of median household income dedicated to mortgage payments on a home priced at the median value (assuming a 30-year mortgage and a 20% down payment).
The Wealth Index is based on a number of indicators of affluence including average household income and average net worth, but it also includes the value of material possessions and resources. It represents the wealth of the area relative to the national level. Values above or below 100 represent above-average wealth or below-average wealth compared to the national level.
The Socioeconomic Index ranges from zero (lowest relative status) to 100 (highest relative status). This measure quantifies disparities in social position of an area's inhabitants and is built from a broad range of demographic, housing, and socioeconomic inputs. More information on this measure can be found in Esri's SEI tutorial.

Bigfork, MT 59911 - Peer Comparisons by Rank and Percentile

The table below compares 59911 to the other 370 ZIP Codes in Montana by rank and percentile using July 1, 2025 data. The location Ranked # 1 has the highest value. A location that ranks higher than 75% of its peers would be in the 75th percentile of the peer group.

GROWTH RATE / YEAR	2020-2025	2025-2030
Population	1.52%	1.77%
Households	1.57%	1.78%
Families		1.58%
Median Household Income		1.73%
Per Capita Income		1.94%
Owner Occupied HU		2.04%

Variable Description	Rank	Percentile
Total Population	# 30	92nd
Population Density	# 82	78th
Median Household Income	# 67	82nd
Housing Affordability Index	# 115	31st
Per Capita Income	# 29	92nd
Diversity Index	# 211	43rd

59911 ZIP Code Profile, Map, Data & Demographics

ZIP Code 59911: Basic Data & USPS Preferred City Name

Bigfork, MT 59911 Data & Demographics (As of July 1, 2025)

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Bigfork, MT 59911 - Peer Comparisons by Rank and Percentile

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