ZIP code · Olney · Montana · United States

ZIP code 59927 — Olney

ZIP code 59927 serves Olney, Montana.

Postal code
59927
Single source Value from one source, not cross-checked.
City
Olney
County
Flathead FIPS 30029
State
Montana
Country
United States
Coordinates
48.5455, -114.5920 — precision precise (locality)
View on OpenStreetMap
Population
295 (ZCTA, ACS 5-year)
Population density
2 / sq mi
Land area
194.2 sq mi (503.1 km²) (ZCTA, ACS 5-year)
Median household income
$58,750
Per-capita income
$32,931
Median age
55.1
Households
145
Housing units
180
Median home value
$528,200
Congressional district
MT-1 (119th Congress)
USDA hardiness zone
5a (-20 to -15 °F)
Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
Time zone
America/Denver (UTC−7 / UTC−6 DST)
Area code
406
Telephone area codes serving this ZIP (NANPA central-office assignments). A ZIP and an area code are different boundaries; at a border both codes may apply.

Climate — monthly normals

Warmest month Jul (avg high 80°F), coldest Feb (avg low 12°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F283443536369808069523627
Avg low °F121219263441434133251913
Precip in2.01.31.31.22.13.01.31.11.21.81.92.0

NOAA 1991–2020 climate normals from the nearest station: OLNEY (0.9 mi) · NOAA NCEI

Places in ZIP 59927

Places mapped inside this ZIP’s ZCTA area in OpenStreetMap. OSM is community-maintained: counts reflect what has been mapped, and completeness varies by area — treat them as at-least figures. © OpenStreetMap contributors (ODbL) · Methodology

About this page

US ZIP codes have five digits. They are postal routing areas, not administrative boundaries: a ZIP can span more than one city or county, and the city shown is the primary USPS name for that code.

GeoNames · U.S. Census Bureau (ACS) · U.S. Census Bureau · NOAA NCEI · usda-phzm. Data generated on 2026-08-21. Methodology · Report an error on this page