59521 ZIP Code, Box Elder, MT

59521 is a ZIP code in Box Elder, Montana — mostly in Hill County (82% of its land), with smaller parts in Chouteau County. It covers 284 square miles of land. The closest ZIP codes are 59520 and 59532. 3,529 people live here in 1,001 households. It is rural, with fewer than 100 people per square mile, and most households rent (37% own). Median household income is $50,288, below the Montana median of $72,509; 48% of households have children under 18.

Quick facts

Key figures

MeasureValue
Residents3,529
Households1,001
Median household income$50,288
Income per person$20,202
Median age30.2
Homeowners37.4%
Median home value$103,700
Median rent$406
Bachelor's degree or higher18.7%
Average commute (minutes)15.4
Households with kids under 1847.5%
Moved in the past year7.7%
Below the poverty line33.0%
Broadband internet72.4%
Speak a non-English language at home2.6%

Household income

% of householdsValue
<$10K9.6%
$10–15K10.2%
$15–25K6.9%
$25–35K6.3%
$35–50K16.6%
$50–75K20.7%
$75–100K12.1%
$100–150K10.1%
$150–200K7.0%
$200K+0.6%

Age

% of all residentsValue
<1018.4%
10–1917.9%
20–249.9%
25–3410.6%
35–4412.4%
45–5410.9%
55–649.8%
65–748.0%
75+2.1%

Tenure

% of housing unitsValue
Owned, with mortgage2.0%
Owned outright31.3%
Rented55.8%
Vacant10.9%

Type of building

% of housing unitsValue
Detached house90.3%
Townhome2.5%
2–4 units1.0%
5–19 units0.0%
20+ units0.0%
Mobile / other6.2%

Businesses in 59521

20 business establishments with 513 employees (ZIP Codes Business Patterns 2023).

EDDM carrier routes

See every USPS carrier route in 59521 with residential and business mailbox counts on the route map. Open the EDDM route map.

Nearby ZIP codes

Areas that include 59521

Mail every home in 59521

Route counts on this page price as Full Service 6.5 × 9 postcards: we print, bundle by carrier route and hand the mailing to USPS. Prefer to take it to the Post Office yourself? Print only costs less and you pay postage at drop-off.

EDDM guides

ZIP code statistics describe the Census ZIP Code Tabulation Area (ZCTA) 59521, which approximates the USPS ZIP code area. Census figures: American Community Survey 5-year estimates, 2020–2024.

Frequently asked questions

What city is 59521 in?
59521 is a Box Elder, MT mailing address. By land area, 3% lies inside Rocky Boy's Agency, 3% lies inside St. Pierre, 3% lies inside Parker School and 2% lies inside Sangrey; the rest is outside any Census-defined city or community.
What county is 59521 in?
59521 is mostly in Hill County (82% of its land), with smaller parts in Chouteau County.
What is the population of 59521?
About 3,529 people (±300), according to the Census Bureau's American Community Survey 5-year estimates for 2020–2024. The 2020 Census counted 3,820.
What is the median household income in 59521?
$50,288 (±$6,429), compared with $72,509 for Montana as a whole. Half the households in the ZIP code earn more and half earn less.
How many carrier routes and mailboxes are in 59521?
EDDM2GO's stored route library does not include 59521 yet. The EDDM route map loads its carrier routes and mailbox counts when you search the ZIP code.
What ZIP codes are near 59521?
The closest, measured center to center: 59520 (18.5 mi, Big Sandy) and 59532 (20.8 mi, Kremlin).

This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau.