States · Idaho · Custer County

Mackay, Idaho.

Typical home $324,507 (+4.0% in a year).

What it costs per month · Mackay $1,703/mo

to buy the typical home at today's mortgage rate — +$966 (+131%) since Jan 2020.

What the home itself did
1 year
Up $12,448 +4%
$312,059$324,507 since Sep 2025
5 years
Up $17,991 +6%
$306,515$324,507 since Sep 2021

Monthly payment to buy the typical home

Home value × that month's 30-year mortgage rate, 20% down, principal and interest. This is the line households feel: prices and rates compound each other.

$500 $1,000 $1,500 $2,000 $2,500 2002 2006 2010 2014 2018 2022 2026 Mackay $1,703 Idaho $2,502 United States $1,922
$500 $1,000 $1,500 $2,000 $2,500 2002 2010 2018 2026
  • Mackay$1,703
  • Idaho$2,502
  • United States$1,922

At the last five years' pace, a typical home here doubles in price every 61 years.

Typical home values in Mackay, ID rose 4.0% over the past year — faster than the nation's +1.2%.

Living in Mackay, Custer County, Idaho

Mackay is a city of 439 people in Custer County. Unemployment in Custer County was 3.3% in August 2026, and the county had 4.0% more jobs in 2025 than the year before.

People 439 in the 2020 census; median age 61.7
Household income Too few homes in Mackay for the Census survey to measure.
Unemployment 3.3% Custer County, August 2026; 3.6% a year before
Homes Too few homes in Mackay for the Census survey to measure.

Written by AI Claude Sonnet 5.5 wrote this on 23 October 2026 from the figures here, a list of nearby places and what it knows. It can be wrong or out of date.

What it’s like

The place. Mackay is a very small city, home to far fewer people than most towns in the country, and its residents are considerably older than the national average. Winters are cold, with December the coldest month, and summers are warm in July without turning extreme. Precipitation is light overall, with rain and melted snow adding up to a dry year by most standards.

Work. Work here leans on public employers. Across Custer County, the Forest Service and the school districts, including Mackay Joint District, are among the biggest places to work. Unemployment in the county has stayed low and slipped a little over the past year, and the county has added jobs. Few people in town work from home.

Things to do. Mackay Reservoir is a short drive away and suits time on the water. Merriam Lake is a longer drive away, and Blizzard Mountain Ski Area, also a longer drive, is the nearest place for skiing in the cold months.

Report a mistake
  • 5%work from home

Weather through the year

Average daily high and low for each month: coldest in December, 29° and 10°; warmest in July, 83° and 50° 0° 20° 40° 60° 80° J F M A M J J 83° 50° A S O N D 29° 10°
Average daily high and low for each month: coldest in December, 29° and 10°; warmest in July, 83° and 50° 0° 20° 40° 60° 80° J F M A M J J 83° 50° A S O N D 29° 10°

Coldest in December, with highs near 29° and lows near 10°; warmest in July, with highs near 83° and lows near 50°. About 10 inches of rain and melted snow a year.

Average daily high and low, 1991–2020, at the Mackay Lost River Rs weather station, under a mile away (NOAA).

Largest workplaces in Custer County

  1. Forest ServiceFederal government · Department of Agriculture60
  2. Challis Joint DistrictSchool district52FTE
  3. Mackay Joint DistrictSchool district26FTE
  4. Forest ServiceFederal government · Department of Agriculture24
  5. Forest ServiceFederal government · Department of Agriculture23

Federal offices come from OPM's federal workforce data (2026) and school districts from the Common Core of Data (NCES, 2023–24); FTE marks full-time equivalent staff. Not listed: many offices and banks, which need not report to OSHA; military bases, whose staff OPM withholds; and, in about half the states, city and county governments.

Natural hazards

  1. LandslidesVery high
  2. Inland floodingVery high
  3. LightningVery high
  4. Winter weatherVery high
  5. WildfireRelatively high
  6. AvalanchesRelatively high

FEMA’s National Risk Index (December 2025) rates the risk each natural hazard poses to the people, buildings and farms in Mackay’s census tracts, against the rest of the country; all of them together, very high. It is meant for planning, not a substitute for a local risk assessment or a flood map: FEMA’s index.

From the U.S. Census Bureau’s 2020 census and its American Community Survey (2020–2024 five-year estimates), and the Bureau of Labor Statistics. A survey, so each figure has a margin of error, and figures it is not sure of are left out. More on Custer County.

Mackay home values

Zillow measures a city over its municipal boundary. Against the state and national figures, mid-tier homes, smoothed and seasonally adjusted.

$200,000 $300,000 $400,000 $500,000 2018 2020 2022 2024 2026 Mackay $324,507 Idaho $476,754 United States $366,157
$200,000 $300,000 $400,000 $500,000 2018 2022 2026
  • Mackay$324,507
  • Idaho$476,754
  • United States$366,157

When this market ran hot

Each cell is that month's year-on-year home-value growth. Read left to right, top row is the latest year — the 2021–22 band is the boom.

JFMAMJJASOND
2026
2025
2024
2023
2022
2021
2020
2019
2018
falling flat warming hot overheating runaway

Market heat, inside the city limits

Homes for sale

Active for-sale inventory. More supply hands power to buyers.

10 20 30 2018 2019 2020 2021 2022 2023 2024 2025 2026 Mackay 15
10 20 30 2018 2022 2026
  • Mackay15

New listings per month

Sellers arriving at the market.

Not enough data to draw this yet.

Zip codes with a Mackay address

A different geography, not a breakdown. The figure above covers the municipality; these zips cover everywhere the Post Office calls Mackay — often including townships beyond the city limits. Both come straight from Zillow, and they are not expected to average out.

Zip codes in Mackay