Residential delivery area · Montana
ZIP Code 59457: Lewistown, MT
ZIP code 59457 uses the postal name Lewistown, Montana and lies entirely in Fergus County (Census 2020 ZIP-county file). About 9,100 people live there (Census Bureau, ACS 2020-2024). Median household income is $64,762 (Census Bureau, ACS 2020-2024). By Census place, its land lies in Lewistown (under 1%), Lewistown Heights (under 1%), Deerfield Colony (under 1%), King Ranch Colony (under 1%), Spring Creek Colony (under 1%), Brooks (0%), Danvers (0%) and Warm Spring Creek (0%); 99% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Lewistown · its only residential ZIP
- County
- Fergus County
- Census places
- Lewistown (under 1%); Lewistown Heights (under 1%) census-designated place; Deerfield Colony (under 1%) census-designated place; King Ranch Colony (under 1%) census-designated place
- House district
- MT-2 119th Congress
- State
- Montana
- Time zone
- Mountain
- Land area
- 995.6 sq mi · 9 people per sq mi
Where is ZIP code 59457?
59457 centers on 47.140°, -109.311° and covers 995.6 square miles of land plus 0.4 of water. It borders 10 ZIP codes: 59451, 59441, 59464, 59462, 59032, 59430, 59471, 59452, 59074, 59046.
The map draws ZIP code areas only. For the streets inside 59457, 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 59457 compare with the rest of Fergus County?
| Measure | 59457 | In Fergus County | In MT |
|---|---|---|---|
| People (ACS 2020-2024) | 9,135 | 1st of 11 | 31st of 369 |
| Median household income | $65k | 1st of 1 | 61st of 104 |
| Median home value | $242k | 1st of 1 | 84th of 120 |
Its median household income is higher than in 38% of U.S. residential ZIP codes, and it is denser than 16% 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 59457?
The 2020 Census counted 8,894 people in 59457; the ACS, which samples households over 2020-2024, estimates 9,135. Its boundary changed between the 2010 and 2020 censuses, so the two counts are not compared.
- People, ACS 2020-2024
- 9,135
- 2020 Census count
- 8,894
- Households
- 4,186
- Median age
- 43.8
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 59457?
Of the 9,135 people the ACS estimates in 59457, 21.0% are under 18 and 24.2% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (91.7%).
- Under 1821.0%
- 18 to 6454.8%
- 65 and older24.2%
- White, not Hispanic91.7%
- Other or two or more3.9%
- Hispanic or Latino2.8%
- Asian, not Hispanic0.8%
- Black, not Hispanic0.7%
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 59457 earn?
Median household income is $64,762 (ACS 2020-2024).
- Median household income
- $64,762±$7,369
- Income per person
- $35,211
- Below the poverty line
- 15.7%
- Unemployed (of the labor force)
- 5.1%
- Adults 25+ with a bachelor's degree
- 23.0%
- Adjusted gross income per tax return, 2022
- $72,0014,450 returns; wages 55% 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 59457?
FHFA's house price index for 59457, built from repeat sales and appraisals of the same homes, rose 102% from 2015 to 2025 and rose 77% from 2020 to 2025, and moved −0.3% in 2025.
- Median home value (owners' estimate)
- $242,300
- Median gross rent
- $970
- Homes owned by their occupants
- 60.5%
- Housing units
- 4,591
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 59457?
365 business establishments had a location in this ZIP code in 2023, 6 fewer than in 2018; the most are in construction (ZIP Code Business Patterns).
- Construction54
- Retail trade49
- Health care and social assistance49
- Other services (except public administration)38
- Accommodation and food services28
- Professional, scientific, and technical services25
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 59457?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 59451 | Hilger | 123 | $86k | 17.7 mi |
| 59441 | Forest Grove | 126 | $62k | 24.4 mi |
| 59464 | Moore | 597 | $57k | 25.3 mi |
| 59462 | Moccasin | 122 | $51k | 27.5 mi |
| 59032 | Grass Range | 409 | $42k | 29.7 mi |
| 59430 | Denton | 448 | $77k | 29.8 mi |
| 59471 | Roy | 318 | $65k | 32.1 mi |
| 59452 | Hobson | 599 | $55k | 39.3 mi |
| 59074 | Ryegate | 413 | $50k | 53.6 mi |
| 59046 | Lavina | 577 | $74k | 56.4 mi |
| 59489 | Winifred | 424 | $65k | 33.7 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.