Residential delivery area · Montana
ZIP Code 59230: Glasgow, MT
ZIP code 59230 uses the postal name Glasgow, Montana and lies entirely in Valley County (Census 2020 ZIP-county file). About 4,600 people live there (Census Bureau, ACS 2020-2024). Median household income is $85,000 (Census Bureau, ACS 2020-2024). By Census place, its land lies in St. Marie (2%) and Glasgow (under 1%); 98% is outside any Census place.
- ACS2020-24
- Census2020
- FHFA2025
- ZBP2023
- IRS2022
- Town
- Glasgow · its only residential ZIP
- County
- Valley County
- Census places
- St. Marie (2%) census-designated place; Glasgow (under 1%)
- House district
- MT-2 119th Congress
- State
- Montana
- Time zone
- Mountain
- Land area
- 1,496.9 sq mi · 3 people per sq mi
Where is ZIP code 59230?
59230 centers on 48.131°, -106.798° and covers 1,496.9 square miles of land plus 118.2 of water. It borders 10 ZIP codes: 59273, 59231, 59241, 59248, 59223, 59244, 59538, 59250, 59337, 59318.
The map draws ZIP code areas only. For the streets inside 59230, 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 59230 compare with the rest of Valley County?
| Measure | 59230 | In Valley County | In MT |
|---|---|---|---|
| People (ACS 2020-2024) | 4,606 | 2nd of 13 | 51st of 369 |
| Median household income | $85k | 2nd of 3 | 22nd of 104 |
| Median home value | $241k | 1st of 3 | 86th of 120 |
Its median household income is higher than in 68% of U.S. residential ZIP codes, and it is denser than 8% 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 59230?
The 2020 Census counted 4,623 people in 59230; the ACS, which samples households over 2020-2024, estimates 4,606. Between the 2010 and 2020 censuses its population grew 3.0% (its boundary stayed at least 90% the same).
- People, ACS 2020-2024
- 4,606
- 2020 Census count
- 4,623+3.0% since 2010 (4,490)
- Households
- 1,924
- Median age
- 44.8
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 59230?
Of the 4,606 people the ACS estimates in 59230, 21.8% are under 18 and 25.3% are 65 or older. The largest group by race and Hispanic origin is White (not Hispanic) (92.2%).
- Under 1821.8%
- 18 to 6452.9%
- 65 and older25.3%
- White, not Hispanic92.2%
- Other or two or more5.3%
- Hispanic or Latino2.0%
- Black, not Hispanic0.6%
- Asian, not Hispanic0.0%
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 59230 earn?
Median household income is $85,000 (ACS 2020-2024), the 2nd highest of the 3 ranked ZIP codes in Valley County. It is not measurably different from 2015-2019 ($69,464 in 2024 dollars): the change is within the surveys' margins of error.
- Median household income
- $85,000±$20,363
- Income per person
- $37,330
- Below the poverty line
- 6.8%
- Unemployed (of the labor force)
- 1.2%
- Adults 25+ with a bachelor's degree
- 26.5%
- Adjusted gross income per tax return, 2022
- $70,5662,270 returns; wages 62% 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 59230?
FHFA's house price index for 59230, built from repeat sales and appraisals of the same homes, rose 39% from 2015 to 2025 and rose 28% from 2020 to 2025, and moved −8.6% in 2025.
- Median home value (owners' estimate)
- $241,000
- Median gross rent
- $832
- Homes owned by their occupants
- 77.2%
- Housing units
- 2,274
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 59230?
214 business establishments had a location in this ZIP code in 2023, the same count as in 2018; the most are in retail trade (ZIP Code Business Patterns).
- Retail trade39
- Health care and social assistance31
- Accommodation and food services24
- Construction21
- Other services (except public administration)19
- Professional, scientific, and technical services17
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 59230?
| ZIP | Town | People | Household income | Distance |
|---|---|---|---|---|
| 59273 | Vandalia | 15 | – | 13.8 mi |
| 59231 | Saint Marie | 306 | $39k | 22.2 mi |
| 59241 | Hinsdale | 439 | $49k | 25.4 mi |
| 59248 | Nashua | 1,023 | $90k | 26.5 mi |
| 59223 | Fort Peck | 19 | – | 31.2 mi |
| 59244 | Larslan | 63 | $111k | 40.7 mi |
| 59538 | Malta | 2,737 | $57k | 48.6 mi |
| 59250 | Opheim | 242 | $51k | 49.9 mi |
| 59337 | Jordan | 653 | $75k | 50.1 mi |
| 59318 | Brusett | 148 | $59k | 54.7 mi |
| 59225 | Frazer | 639 | $44k | 39.4 mi (near) |
| 59261 | Saco | 525 | $53k | 39.7 mi (near) |
Source: PlainZIP from the Census 2020 ZCTA boundaries (shared edges) and internal points; figures ACS 2020-2024.