59311 ZIP Code Profile, Map, Data & Demographics

ZIP Code Type: STANDARD
County: Carter County
Centroid: Latitude 45.185, Longitude -104.249
Time Zone: Mountain Time Zone (UTC -7 hours)
Observes DST: Yes

ZIP Code 59311 has segments in 2 Counties (Carter, Crook).

Businesses Addresses: 6
PO Box Addresses: 32
Residential Addresses: 53

Multi-Family Addresses: 0
Single Family Addresses: 53

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

Alzada, MT 59311 Data & Demographics (As of July 1, 2025)

POPULATION
Total Population	206 (100%)
Population in Households	206 (100.0%)
Population in Families	170 (82.5%)
Population in Group Quarters¹	0
Population Density	0
Diversity Index²	21


INCOME
Median Household Income	$48,167
Average Household Income	$76,707
% of Income for Mortgage⁴	31%
Per Capita Income	$35,002
Wealth Index⁵	71
Socioeconomic Status Index⁶	Moderate (64.1)

HOUSING
Total HU (Housing Units)	128 (100%)
Owner Occupied HU	72 (56.2%)
Renter Occupied HU	22 (17.2%)
Vacant Housing Units	34 (26.6%)
Median Home Value	$241,667
Average Home Value	$575,868
Housing Affordability Index³	74

HOUSEHOLDS
Total Households	94
Average Household Size	2.19
Family Households	63
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.

Alzada, MT 59311 - Peer Comparisons by Rank and Percentile

The table below compares 59311 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	-0.55%	-0.29%
Households	-0.60%	0.21%
Families		2.42%
Median Household Income		4.80%
Per Capita Income		3.91%
Owner Occupied HU		-0.56%

Variable Description	Rank	Percentile
Total Population	# 273	26th
Population Density	# 362	5th
Median Household Income	# 335	10th
Housing Affordability Index	# 239	65th
Per Capita Income	# 223	40th
Diversity Index	# 241	36th

59311 ZIP Code Profile, Map, Data & Demographics

ZIP Code 59311: Basic Data & USPS Preferred City Name

Alzada, MT 59311 Data & Demographics (As of July 1, 2025)

POPULATION

INCOME

HOUSING

HOUSEHOLDS

GROWTH RATE / YEAR

Alzada, MT 59311 - Peer Comparisons by Rank and Percentile

Popular Places Near ZIP Code 59311

Use HTL Address Research for a Montana Address and get...

Quick & Easy Ways to...

Montana Census Data Comparison Tool

More Tools and Resources:

Carter County