Residential delivery area · Montana
ZIP Code 59901: Kalispell, MT
ZIP code 59901 uses the postal name Kalispell, Montana and lies entirely in Flathead County (Census 2020 ZIP-county file). About 63,000 people live there (Census Bureau, ACS 2020-2024). Median household income is $72,523 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Kalispell (3%), Evergreen (2%), Helena Flats (2%), Batavia (under 1%), Forest Hill Village (under 1%) and Rhodes (under 1%); 93% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Kalispell · its only residential ZIP
- County
- Flathead County
- Census places
- Kalispell (3%); Evergreen (2%) census-designated place; Helena Flats (2%) census-designated place; Batavia (under 1%) census-designated place
- Micro area
- Kalispell, MT
- House district
- MT-1 119th Congress
- State
- Montana
- Time zone
- Mountain
- Land area
- 468.8 sq mi · 135 people per sq mi
Where is ZIP code 59901?
59901 centers on 48.231°, -114.403° and covers 468.8 square miles of land plus 14.6 of water. It borders 7 ZIP codes: 59932, 59937, 59912, 59920, 59925, 59911, 59923.
The map draws ZIP code areas only. For the streets inside 59901, 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 59901 compare with the rest of Flathead County?
| Measure | 59901 | In Flathead County | In MT |
|---|---|---|---|
| People (ACS 2020-2024) | 63,161 | 1st of 16 | 1st of 369 |
| Median household income | $73k | 5th of 7 | 47th of 104 |
| Median home value | $476k | 5th of 7 | 23rd of 120 |
Its median household income is higher than in 51% of U.S. residential ZIP codes, and it is denser than 58% 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 59901?
The 2020 Census counted 57,900 people in 59901; the ACS, which samples households over 2020-2024, estimates 63,161. Between the 2010 and 2020 censuses its population grew 16.5% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 63,161
- 2020 Census count
- 57,900+16.5% since 2010 (49,693)
- Households
- 24,367
- Median age
- 39.5
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 59901?
Of the 63,161 people the ACS estimates in 59901, 23.7% are under 18 and 18.9% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (88.8%).
- Under 1823.7%
- 18 to 6457.4%
- 65 and older18.9%
- White, not Hispanic88.8%
- Other or two or more5.5%
- Hispanic or Latino4.4%
- Asian, not Hispanic1.1%
- Black, not Hispanic0.2%
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 59901 earn?
Median household income is $72,523 (ACS 2020-2024), the 5th highest of the 7 ranked ZIP codes in Flathead County. It is not measurably different from 2015-2019 ($68,076 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $72,523
- Income per person
- $38,447
- Below the poverty line
- 9.9%
- Unemployed (of the labor force)
- 2.8%
- Adults 25+ with a bachelor's degree
- 33.7%
- Adjusted gross income per tax return, 2022
- $80,17228,520 returns; wages 60% 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 59901?
FHFA's house price index for 59901, built from repeat sales and appraisals of the same homes, rose 140% from 2015 to 2025 and rose 74% from 2020 to 2025, and moved +3.0% in 2025.
- Median home value (owners' estimate)
- $476,300
- Median gross rent
- $1,117
- Homes owned by their occupants
- 70.0%
- Housing units
- 25,661
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 59901?
2,757 business establishments had a location in this ZIP code in 2023, 447 more than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction583
- Health care and social assistance290
- Professional, scientific, and technical services283
- Retail trade272
- Other services (except public administration)221
- Real estate and rental and leasing183
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 59901?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 59932 | Somers | 1,850 | $60k | 14.4 mi |
| 59937 | Whitefish | 15,114 | $75k | 14.9 mi |
| 59912 | Columbia Falls | 15,752 | $77k | 17.9 mi |
| 59920 | Kila | 1,704 | $87k | 18.4 mi |
| 59925 | Marion | 1,532 | $64k | 23.6 mi |
| 59911 | Bigfork | 9,493 | $83k | 34.9 mi |
| 59923 | Libby | 10,450 | $45k | 42.0 mi |
| 59922 | Lakeside | 2,337 | $87k | 17.8 mi (near) |
| 59919 | Hungry Horse | 679 | $53k | 18.9 mi (near) |
| 59926 | Martin City | 268 | $71k | 20.5 mi (near) |
| 59929 | Proctor | 230 | $101k | 21.7 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.
Which other ZIP codes use the name Kalispell?
2 more ZIP codes carry the postal name Kalispell, MT without a residential delivery area: PO boxes at the post office, or a single organization with its own ZIP code. The Census Bureau publishes no figures for them.
| ZIP | County |
|---|---|
| 59903 | Flathead County |
| 59904 | Flathead County |
Source: GeoNames postal codes (CC BY 4.0), downloaded 2026-10-09; a ZIP code with no Census ZCTA has no residential delivery area.