ZIP code · Nine Mile Falls · Washington · United States

ZIP code 99026 — Nine Mile Falls

ZIP code 99026 serves Nine Mile Falls, Washington.

Postal code
99026
Single source Value from one source, not cross-checked.
City
Nine Mile Falls
County
Spokane FIPS 53063
State
Washington
Country
United States
Coordinates
47.8019, -117.5894 — precision precise (locality)
View on OpenStreetMap
Population
9,206 (ZCTA, ACS 5-year)
Population density
146 / sq mi
Land area
63.1 sq mi (163.4 km²) (ZCTA, ACS 5-year)
Median household income
$98,125
Per-capita income
$44,505
Median age
52.5
Households
3,508
Housing units
3,623
Median home value
$477,300
Median gross rent
$1,110 / month
Congressional district
WA-5 (119th Congress)
USDA hardiness zone
6b (-5 to 0 °F)
Planting / growing zone from the 2023 USDA Plant Hardiness Zone Map: average annual extreme minimum temperature, 1991–2020.
Time zone
America/Los_Angeles (UTC−8 / UTC−7 DST)
Area code
509 (from the nearest rate centre)
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 83°F), coldest Dec (avg low 22°F).

JanFebMarAprMayJunJulAugSepOctNovDec
Avg high °F333948576672838373574132
Avg low °F232429344147525143342722
Precip in2.01.41.81.51.61.40.50.40.61.52.22.4

NOAA 1991–2020 climate normals from the nearest station: SPOKANE WFO (8.5 mi) · NOAA NCEI

Places in ZIP 99026

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