US ZIP Code
59859

Plains, MT

Sanders County  ·  Montana

● Active
👥 4,204 Population ↑ 27% since 2019
💰 $61,667 Median HH Income
▼ 19% below avg ↑ 34% since 2019
🎂 55.1 Median Age ↓ 4% since 2019
🏠 $403,800 Median Home Value
▲ 45% above avg ↑ 57% since 2019
🎓 33.6% College Grads
▼ 13% below avg
📊 4.0% Unemployment
▼ 19% below avg ↓ 9% since 2019
ZIP Code Details
ZIP Code59859
CityPlains
StateMontana (MT)
CountySanders County
Area Code406
Elevation5,224 ft
Latitude47.519781
Longitude-114.795216
TimezoneDenver (DST)
FIPS30089
ZIP TypeStandard
StatusActive
People & Population (ACS 2023)
♂ Male 51.6% (2,171) Female 48.4% (2,033) ♀

Race & Ethnicity

White: 92.4%Hispanic: 1.7%Black: 0.4%Asian: 0.8%Other: 3.6%Race
White92.4%
Hispanic1.7%
Black0.4%
Asian0.8%
Other3.6%

Age Breakdown

Under 5
4%
5–17
13%
18–24
8%
25–44
18%
45–64
23%
65+
19%

Key Indicators

Median Age55.1 yrs ↓ 4% since 2019
Avg Household Size2.20
Below Poverty10.0% ≈ Avg
College Grads33.6% ▼ 13% below avg
Unemployment4.0% ▼ 19% below avg
No HS Diploma4 (0.1%)
HS Graduate895 (30.3%)
Some College463 (15.7%)
Associates600 (20.3%)
Bachelors332 (11.2%)
Graduate Degree660 (22.3%)

Education

No HS: 0.1%HS Grad: 30.3%Some College: 15.7%Associates: 20.3%Bachelors: 11.2%Graduate: 22.3%Edu
No HS0.1%
HS Grad30.3%
Some College15.7%
Associates20.3%
Bachelors11.2%
Graduate22.3%
Housing & Income

Housing Tenure

Owner: 74.3%Renter: 25.7%Tenure
Owner74.3%
Renter25.7%

Home Value Distribution

Under $50k
3%
$50k–100k
5%
$100k–150k
5%
$150k–200k
5%
$200k–300k
17%
$300k–500k
28%
Over $500k
37%

Financials

Median HH Income$61,667 ▼ 19% below avg ↑ 34% since 2019
Median Home Value$403,800 ▲ 45% above avg ↑ 57% since 2019
Home/Income Ratio6.5x (nat avg ~3.5x)
Median Rent$792/mo ↑ 24% since 2019
Total Units2,155
Vacant Units287
Avg HH Size2.20

Income Distribution

Under $25k
26%
$25k–50k
15%
$50k–75k
19%
$75k–100k
20%
$100k–150k
12%
$150k–200k
4%
Over $200k
5%
Employment & Commute

How People Get to Work

Drove Alone
76%
Public Transit
0%
Walked
7%
Work From Home
17%

Commute Time

Under 15 min
54%
15–30 min
17%
30–45 min
14%
Over 45 min
15%
Housing Stock

Year Built

Before 1940
0%
1940s–1950s
5%
1960s–1970s
11%
1980s–1990s
19%
2000+
64%

Summary

Total Units2,155
Vacant287
Owner Occupied74.3%
Renter Occupied25.7%
Avg HH Size2.20
Frequently Asked Questions
ZIP code 59859 is in Plains, MT, in Sanders County.
ZIP code 59859 is located in Montana (MT).
ZIP code 59859 is in Sanders County, MT.
ZIP 59859 observes the Denver timezone. Daylight Saving Time is observed.
The estimated population of ZIP code 59859 is 4,204 people (ACS 2023).
The median household income in ZIP code 59859 is $61,667 (ACS 2023).
The median home value in ZIP 59859 is $403,800 (ACS 2023).
About ZIP Code 59859

ZIP code 59859 is located in Plains, Montana, within Sanders County. With a population of 4,204, this is a lightly populated ZIP code with an older community — the median age is 55.1 years. Economically, 59859 is a solidly middle-class ZIP code: the median household income of $61,667 is below the national average.

Real estate in ZIP code 59859 represents a premium housing market. The median home value of $403,800 is above the national average. Renters can expect to pay around $792 per month in median rent. Homeownership is strong here — 74.3% of occupied units are owner-occupied, suggesting an established, stable residential community. Median home values have increased by 57% since 2019.

The population of 59859 is primarily White (92.44%). Residents are moderately educated — 33.6% hold a bachelor's degree or higher, which is near the national average. Poverty affects a relatively small share of residents at 10.0%. Household income has grown by 34% since 2019.

The unemployment rate in 59859 stands at 4.0%, which is below the national average. About 14% of workers are remote. As in most parts of the country, driving alone is the dominant commute mode at 64%.

Overall, ZIP code 59859 in Plains, MT is characterized as solidly middle-class, moderately educated, an older community, and predominantly owner-occupied. With 4,204 residents, a median household income of $61,667, and a median home value of $403,800, it offers a clear picture of life in this part of Montana.