ZIP Code Tabulation Area · Montana

ZIP Code 59521: Hill County, MT

ZIP Code 59521 (Hill County, Montana) has an estimated 3,529 residents in 1,001 households. The median household income is $50,288, the median home value is $103,700 and the median gross rent is $406/mo. Figures are U.S. Census Bureau American Community Survey 2020–2024 5-year estimates for the matching ZIP Code Tabulation Area.

American Community Survey 2020–2024 5-year estimates · Updated Oct 26, 2026

Total population

3,529

Margin of error ±300

Median household income

$50,288

Margin of error ±$6,429

Median home value

$103,700

Margin of error ±$14,618

Median gross rent

$406/mo

Margin of error ±$40

Median age

30.2 yrs

Margin of error ±5.3 yrs

Mean travel time to work

15.4 min

Margin of error ±3.2 min

How ZIP 59521 compares with Montana and the U.S.

State and national figures are the Census Bureau's own estimates for those areas from the same ACS release, not averages of ZIP codes.

Median age

ZIP 5952130.2 yrsMontana40.4 yrsUnited States38.9 yrs

Median household income

ZIP 59521$50,288Montana$72,509United States$80,734

Per capita income

ZIP 59521$20,202Montana$41,711United States$44,673

Poverty rate

ZIP 5952133.0%Montana11.5%United States12.5%

Unemployment rate

ZIP 5952110.7%Montana3.6%United States5.2%

Bachelor's degree or higher

ZIP 5952118.7%Montana35.2%United States35.7%

Median home value

ZIP 59521$103,700Montana$375,800United States$332,700

Median gross rent

ZIP 59521$406/moMontana$1,081/moUnited States$1,413/mo

Owner-occupied homes

ZIP 5952137.4%Montana69.2%United States65.2%

Mean travel time to work

ZIP 5952115.4 minMontana19.1 minUnited States26.4 min

Worked from home

ZIP 595216.5%Montana12.5%United States15.1%

All figures for ZIP 59521

Each estimate has a 90% margin of error: the true value is likely within that range. * marks estimates with a large margin of error (a coefficient of variation above 30%, or ±10 percentage points or more for rates).

ZIP 59521 — ACS 2020–2024 5-year estimates
Measure	ZIP 59521	Margin of error	Montana	United States
Total population	3,529	±300	1,116,875	334,922,499
Median age	30.2 yrs	±5.3 yrs	40.4 yrs	38.9 yrs
Households	1,001	±105	458,859	129,227,496
Median household income	$50,288	±$6,429	$72,509	$80,734
Per capita income	$20,202	±$3,017	$41,711	$44,673
Poverty rate	33.0%	±7.2 pts	11.5%	12.5%
Unemployment rate	10.7%	±5.2 pts	3.6%	5.2%
Bachelor's degree or higher	18.7%	±4.9 pts	35.2%	35.7%
Median home value	$103,700	±$14,618	$375,800	$332,700
Median gross rent	$406/mo	±$40	$1,081/mo	$1,413/mo
Owner-occupied homes	37.4%	±6.6 pts	69.2%	65.2%
Mean travel time to work	15.4 min	±3.2 min	19.1 min	26.4 min
Worked from home	6.5%	±4.2 pts	12.5%	15.1%

Race and Hispanic or Latino origin

Shares of the total population by the Census Bureau's race and Hispanic or Latino origin categories (table B03002), listed in the Census Bureau's order. People self-identify on the survey.

Population by race and Hispanic or Latino origin, ZIP 59521
Group	ZIP 59521	Montana	United States
White alone, not Hispanic or Latino	3.2%	83.6%	57.4%
Black or African American alone, not Hispanic or Latino	0.1%	0.4%	11.9%
American Indian and Alaska Native alone, not Hispanic or Latino	90.2%	5.3%	0.5%
Asian alone, not Hispanic or Latino	0.4%	0.8%	5.9%
Native Hawaiian and Other Pacific Islander alone, not Hispanic or Latino	0.0%	0.0%	0.2%
Some other race alone, not Hispanic or Latino	0.0%	0.5%	0.6%
Two or more races, not Hispanic or Latino	1.8%	4.7%	4.3%
Hispanic or Latino (of any race)	4.3%	4.6%	19.3%

Where ZIP 59521 is

State: Montana
Main county: Hill County— also overlaps Chouteau County
Largest overlapping place: Rocky Boy's Agency (3% of the ZIP's land area)
Land area: 283.64 sq mi· about 12 people per sq mi

County and place names come from the Census Bureau's 2020 ZCTA relationship files. A ZIP code's mailing city, set by the U.S. Postal Service, can differ from these names.

Other ZIP codes in Hill County

59501 Hill County, MT 59525 Hill County, MT 59528 Hill County, MT 59530 Hill County, MT 59532 Hill County, MT 59540 Hill County, MT

See every ZIP code in Montana, or compare ZIP 59521 with another ZIP code.

Census figures describe residents as a group and cannot tell you about any one home or street. For a specific address, check local government and housing records.

About ZIP codes and ZCTAs: the Census Bureau publishes statistics for ZIP Code Tabulation Areas, which approximate USPS ZIP code delivery areas. Learn how they differ.

Sources

U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, detailed tables B01003, B01002, B11001, B19013, B19301, B17001, B23025, B15003, B25077, B25064, B25003, B08013, B08303, B08301, B03002 — snapshot Oct 26, 2026.
U.S. Census Bureau, 2020 ZCTA5 relationship files (county and place).
Data: U.S. Census Bureau, American Community Survey 5-year estimates (detailed tables) and 2020 Census ZCTA relationship files. This product uses the Census Bureau Data API but is not endorsed or certified by the Census Bureau. These agencies do not endorse OpenZIP.