US ZIP Code
83251

Mackay, ID

Custer County  ·  Idaho

● Active
👥 1,322 Population ↑ 11% since 2019
💰 $55,938 Median HH Income
▼ 27% below avg ↑ 45% since 2019
🎂 59.5 Median Age ↑ 38% since 2019
🏠 $327,200 Median Home Value
▲ 17% above avg ↑ 78% since 2019
🎓 32.3% College Grads
▼ 17% below avg
📊 7.6% Unemployment
▲ 55% above avg ↑ 15% since 2019
ZIP Code Details
ZIP Code83251
CityMackay
StateIdaho (ID)
CountyCuster County
Area Code208/986
Elevation8,864 ft
Latitude43.944697
Longitude-113.944659
TimezoneBoise (DST)
FIPS16037
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 44.6% (589) Female 55.5% (733) ♀

Race & Ethnicity

White: 90.9%Hispanic: 4.8%Other: 4.2%Race
White90.9%
Hispanic4.8%
Other4.2%

Age Breakdown

Under 5
5%
5–17
10%
18–24
6%
25–44
12%
45–64
36%
65+
11%

Key Indicators

Median Age59.5 yrs ↑ 38% since 2019
Avg Household Size2.30
Below Poverty14.5% ▲ 45% above avg
College Grads32.3% ▼ 17% below avg
Unemployment7.6% ▲ 55% above avg
HS Graduate438 (42.4%)
Some College129 (12.5%)
Associates132 (12.8%)
Bachelors80 (7.7%)
Graduate Degree254 (24.6%)

Education

HS Grad: 42.4%Some College: 12.5%Associates: 12.8%Bachelors: 7.7%Graduate: 24.6%Edu
HS Grad42.4%
Some College12.5%
Associates12.8%
Bachelors7.7%
Graduate24.6%
Housing & Income

Housing Tenure

Owner: 81%Renter: 19%Tenure
Owner81.0%
Renter19.0%

Home Value Distribution

Under $50k
6%
$50k–100k
2%
$100k–150k
6%
$150k–200k
16%
$200k–300k
13%
$300k–500k
40%
Over $500k
17%

Financials

Median HH Income$55,938 ▼ 27% below avg ↑ 45% since 2019
Median Home Value$327,200 ▲ 17% above avg ↑ 78% since 2019
Home/Income Ratio5.8x (nat avg ~3.5x)
Median Rent$628/mo ↓ 4% since 2019
Total Units909
Vacant Units340
Avg HH Size2.30

Income Distribution

Under $25k
19%
$25k–50k
27%
$50k–75k
19%
$75k–100k
14%
$100k–150k
6%
$150k–200k
11%
Over $200k
4%
Employment & Commute

How People Get to Work

Drove Alone
79%
Public Transit
5%
Walked
4%
Work From Home
11%

Commute Time

Under 15 min
58%
15–30 min
14%
30–45 min
8%
Over 45 min
21%
Housing Stock

Year Built

Before 1940
1%
1940s–1950s
7%
1960s–1970s
17%
1980s–1990s
23%
2000+
53%

Summary

Total Units909
Vacant340
Owner Occupied81.0%
Renter Occupied19.0%
Avg HH Size2.30
Frequently Asked Questions
ZIP code 83251 is in Mackay, ID, in Custer County.
ZIP code 83251 is located in Idaho (ID).
ZIP code 83251 is in Custer County, ID.
ZIP 83251 observes the Boise timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 83251 is 1,322 people (ACS 2023).
The median household income in ZIP code 83251 is $55,938 (ACS 2023).
The median home value in ZIP 83251 is $327,200 (ACS 2023).
About ZIP Code 83251

ZIP code 83251 is located in Mackay, Idaho, within Custer County. With a population of 1,322, this is a sparsely populated ZIP code with an older community — the median age is 59.5 years. Economically, 83251 is a solidly middle-class ZIP code: the median household income of $55,938 is below the national average.

Real estate in ZIP code 83251 represents a mid-range housing market. The median home value of $327,200 is above the national average. Renters can expect to pay around $628 per month in median rent. Homeownership is strong here — 81.0% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 78% since 2019.

The population of 83251 is primarily White (90.85%). Residents are moderately educated — 32.3% hold a bachelor's degree or higher, which is below the national average. Poverty affects some residents at 14.5%. Household income has grown by 45% since 2019.

The unemployment rate in 83251 stands at 7.6%, which is significantly above the national average. As in most parts of the country, driving alone is the dominant commute mode at 69%.

Overall, ZIP code 83251 in Mackay, ID is characterized as solidly middle-class, moderately educated, an older community, and predominantly owner-occupied. With 1,322 residents, a median household income of $55,938, and a median home value of $327,200, it offers a clear picture of life in this part of Idaho.