Mackay Flag

Mackay

County:
Custer County
County Seat:
No
Area (mi²):
0.866
State:
Idaho

Mackay is a city located in Custer County, Idaho. Mackay has a 2026 population of 499. Mackay is currently growing at a rate of 2.04% annually and its population has increased by 12.9% since the most recent census, which recorded a population of 442 in 2020.

The median household income in Mackay is $43,897 with a poverty rate of 19.93%. The median age in Mackay is 61.7 years: 62.7 years for males, and 61 years for females. For every 100 females there are 67.7 males.

499
Total Population
576
Density (mi²)
10 2.04%
Growth

Mackay Population

Mackay Population

Data after 2023 is projected based on recent change

Year ↓
Population
Growth
Annual Change
2026499102.04%
202548991.88%
202448010.21%
202347981.7%
202247171.51%
2021464224.98%
202044200%
201949530.61%
2018492112.29%
201748161.26%
201647520.42%
2015473-8-1.66%
2014481-11-2.24%
2013492-12-2.38%
2012504-1-0.2%
2011505-12-2.32%
2010511-1-0.2%

Median Age

Overall: 61.7 years
Female: 61 years
Male: 62.7 years

Mackay Adults

There are 504 adults, (218 of whom are seniors) in Mackay.

Sex Ratio

Female: 359 (59.6%)
Male: 243 (40.4%)

Demographics

The racial composition of Mackay includes 89.2% White, and smaller percentages for Native American and multiracial populations.

Population by Race

Race
Population ↓
Percentage (of total)
White53789.2%
Two or more races6410.63%
Native American10.17%
Race
Population ↓
Percentage (of total)
Two or more races498.14%
Native American10.17%
Race
Population ↓
Percentage (of total)
White53789.2%
Two or more races152.49%

Mackay Marital Status

Economics and Income Statistics

Mackay 's average per capita income is $0. Household income levels show a median of $43,897. The poverty rate stands at 19.93%.

Families: A family includes the owner or renter of the home along with everyone related to them - whether through birth, marriage, or adoption. This includes relatives like spouses, children, parents, siblings, grandparents, and any other family members.
Households: A household includes all the people who occupy a housing unit (such as a house or apartment) as their usual place of residence.
Non Families: A nonfamily household is either someone living alone or when the owner/renter lives with people they aren't related to, like roommates.
Name
Median ↓
Mean
Families$67,955$72,415
Married Families$67,955-
Households$43,897$71,364
Non Families$32,679$68,236

$0

Average Income

$43,897

Median Household Income

19.93%

Poverty Rate

Nearby Cities

Sources

  1. US Census State Population Estimates - Most recent state estimates from the Census Bureau's Population Estimates Program
  2. US Census County Population Estimates - Most recent county estimates from the Census Bureau's Population Estimates Program
  3. American Community Survey (2009 - 2013)
  4. Census QuickFacts
  5. Historical Populations of States and Counties (1790 - 1990)