Residential delivery area · Montana

ZIP Code 59405: Great Falls, MT

ZIP code 59405 uses the postal name Great Falls, Montana and lies mostly in Cascade County (99% of its land) with the rest in Chouteau County (Census 2020 ZIP-county file). About 33,000 people live there (Census Bureau, ACS 2020-2024), the most populous of Great Falls's 3 residential ZIP codes. Median household income is $59,449 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Malmstrom AFB (1%) and Gibson Flats (under 1%), and 2% in smaller places; 96% is outside any Census place.

  • ACS2020-24
  • Census2020
  • FHFA2025
  • ZBP2023
  • IRS2022
5national area: Montana, Iowa, Minnesota, North Dakota, South Dakota and Wisconsin
594sectional center: Great Falls, MT (SCF 594)
05delivery area within it
Town
Great Falls · 3 residential ZIPs
Census places
Malmstrom AFB (1%) census-designated place; Gibson Flats (under 1%) census-designated place
Metro area
Great Falls, MT
House district
MT-2 119th Congress
State
Montana
Time zone
Mountain
Land area
479.4 sq mi · 70 people per sq mi
PO Box ZIPs
59403, 59406 also use the name Great Falls

Where is ZIP code 59405?

59405 centers on 47.289°, -111.300° and covers 479.4 square miles of land plus 2.8 of water. It borders 11 ZIP codes: 59472, 59480, 59401, 59485, 59414, 59412, 59421, 59404, 59440, 59450 and more.

59401 · Great Falls59404 · Great Falls59412 · Belt59414 · Black Eagle59421 · Cascade59440 · Floweree59450 · Highwood59472 · Sand Coulee59480 · Stockett59485 · Ulm59645 · White Sulphur Springs59405 · Great Falls (this ZIP)5940559645594215940459450594125944059480594725948559401 · Great Falls59404 · Great Falls59412 · Belt59414 · Black Eagle59421 · Cascade59440 · Floweree59450 · Highwood59472 · Sand Coulee59480 · Stockett59485 · Ulm59645 · White Sulphur Springs59405 · Great Falls (this ZIP)5940559645594215940459450594125944059480594725948559401 · Great Falls59404 · Great Falls59412 · Belt59414 · Black Eagle59421 · Cascade59440 · Floweree59450 · Highwood59472 · Sand Coulee59480 · Stockett59485 · Ulm59645 · White Sulphur Springs59405 · Great Falls (this ZIP)59405596455942159404594505941259472
Shaded by median household income, in national fifths (ACS 2020-2024); 59405 outlined. Census 2020 ZCTA boundaries. <$54.1k$98.1k+no figure

The map draws ZIP code areas only. For the streets inside 59405, open its center on OpenStreetMap.

Source: U.S. Census Bureau, 2020 ZCTA cartographic boundaries and the 2023 Gazetteer (2020 ZCTAs); ZIP-to-county shares, Census places and House districts (119th Congress) from the Census 2020 relationship files (shares of land); metro area from the OMB delineation (July 2023); town name and time zone from simplemaps US ZIP Codes (CC BY 4.0).

How does 59405 compare with the rest of Great Falls?

Rank of 59405 among the residential ZIP codes of its town, county and state (1 = the most; income and home value among ZIP codes of 1,000+ people living in households)
Measure59405In Great FallsIn Cascade CountyIn MT
People (ACS 2020-2024)33,3501st of 31st of 178th of 369
Median household income$59k2nd of 33rd of 480th of 104
Median home value$250k2nd of 33rd of 581st of 120

Its median household income is higher than in 28% of U.S. residential ZIP codes, and it is denser than 48% of all U.S. residential ZIP codes. ZIP codes at the ACS caps ($250,000 or more for household income, $2,000,000 or more for home value) share the top rank.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B19013, B25077); ranks by PlainZIP over residential ZIP codes (ZCTAs).

How many people live in 59405?

The 2020 Census counted 33,578 people in 59405; the ACS, which samples households over 2020-2024, estimates 33,350. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.

People, ACS 2020-2024
33,350
2020 Census count
33,578
Households
14,248
Median age
35.1

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01003, B01002, B11001); 2020 Census (DHC P1); 2010 Census (SF1 P1).

Who lives in 59405?

Of the 33,350 people the ACS estimates in 59405, 22.5% are under 18 and 18.2% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (77.7%), then Other or two or more (11.4%).

  • Under 1822.5%
  • 18 to 6459.3%
  • 65 and older18.2%
Age of the people of 59405 (ACS 2020-2024, B01001)
  • White, not Hispanic77.7%
  • Other or two or more11.4%
  • Hispanic or Latino7.0%
  • Black, not Hispanic2.5%
  • Asian, not Hispanic1.5%
Race and Hispanic origin in 59405 (ACS 2020-2024, B03002); each person counted once

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B01001 age by sex, B03002 Hispanic or Latino origin by race); shares of the estimated population, small ZIP codes carry wide margins.

What do households in 59405 earn?

Median household income is $59,449 (ACS 2020-2024), the 3rd highest of the 4 ranked ZIP codes in Cascade County.

Median household income
$59,449
Income per person
$36,131
Below the poverty line
16.4%
Unemployed (of the labor force)
5.1%
Adults 25+ with a bachelor's degree
27.2%
Adjusted gross income per tax return, 2022
$60,98615,170 returns; wages 68% of AGI (IRS)

Source: U.S. Census Bureau, ACS 2020-2024 and 2015-2019 5-year estimates (B19013, B19301, B17001, B23025, B15003; 2015-2019 dollars converted with the BLS CPI-U, 1.22699); IRS Statistics of Income, ZIP code data, tax year 2022 (adjusted gross income per return, filed under the address on the return).

What are homes worth in 59405?

FHFA's house price index for 59405, built from repeat sales and appraisals of the same homes, rose 95% from 2015 to 2025 and rose 65% from 2020 to 2025, and moved +3.5% in 2025.

Median home value (owners' estimate)
$250,100
Median gross rent
$965
Homes owned by their occupants
57.0%
Housing units
15,374
0 100 200 300 400 19912000201020202025 0 100 200 300 400 19912000201020202025 0 100 200 300 400 19912000201020202025
Index = 100 in 1991, the first year FHFA reports for 59405; 2025: 459.1. Annual, not seasonally adjusted; FHFA calls its ZIP-level indexes developmental.

Source: U.S. Census Bureau, ACS 2020-2024 5-year estimates (B25077, B25064, B25003, B25001); FHFA House Price Index, annual five-digit ZIP, updated 2026-03-31.

What businesses are in 59405?

907 business establishments had a location in this ZIP code in 2023, 19 more than in 2018; the most are in health care and social assistance (ZIP Code Business Patterns).

  • Health care and social assistance173
  • Retail trade151
  • Accommodation and food services100
  • Other services (except public administration)86
  • Construction85
  • Finance and insurance61

Source: U.S. Census Bureau, ZIP Code Business Patterns 2023 and 2018 (establishments with paid employees, by the business's ZIP code).

Which ZIP codes are next to 59405?

ZIP codes that share a boundary with 59405, then the nearest by center
ZIPTownPeopleHousehold incomeDistance
59472Sand Coulee507$68k5.6 mi
59480Stockett328$81k11.8 mi
59401Great Falls13,255$55k15.4 mi
59485Ulm772$90k16.0 mi
59414Black Eagle781$70k16.6 mi
59412Belt1,685$83k20.5 mi
59421Cascade2,069$78k23.5 mi
59404Great Falls28,822$84k23.7 mi
59440Floweree432–30.2 mi
59450Highwood503$70k31.8 mi
59645White Sulphur Springs1,611$77k43.1 mi
59483Sun River247$98k23.6 mi (near)

Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.