ZIP code · Okanogan · Washington · United States
ZIP code 98840 — Okanogan
ZIP code 98840 serves Okanogan, Washington.
- Postal code
- 98840Single source Value from one source, not cross-checked.
- City
- Okanogan
- County
- Okanogan FIPS 53047
- State
- Washington
- Country
- United States
- Coordinates
- 48.3513, -119.6046 — precision precise (locality)
View on OpenStreetMap - Population
- 5,084 (ZCTA, ACS 5-year)
- Population density
- 10 / sq mi
- Land area
- 533 sq mi (1,380.4 km²) (ZCTA, ACS 5-year)
- Median household income
- $67,634
- Per-capita income
- $34,151
- Median age
- 42.5
- Households
- 1,987
- Housing units
- 2,258
- Median home value
- $251,700
- Median gross rent
- $967 / month
- Congressional district
- WA-4 (119th Congress)
- USDA hardiness zone
- 7a (0 to 5 °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.
Tools: compare 98840 with another ZIP · ZIPs within 25 miles · distance from 98840
Map of ZIP code 98840
Climate — monthly normals
Warmest month Jul (avg high 89°F), coldest Jan (avg low 23°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 33 | 40 | 53 | 63 | 72 | 79 | 89 | 89 | 78 | 61 | 43 | 33 |
| Avg low °F | 23 | 25 | 31 | 37 | 45 | 51 | 58 | 57 | 48 | 38 | 29 | 23 |
| Precip in | 1.3 | 0.9 | 1.1 | 0.8 | 1.2 | 1.0 | 0.5 | 0.3 | 0.4 | 0.9 | 1.2 | 1.9 |
NOAA 1991–2020 climate normals from the nearest station: OMAK AP (8.6 mi) · NOAA NCEI
Places in ZIP 98840
- 6 schools
- 1 supermarkets
- 1 restaurants & cafés
- 8 parks
- 1 playgrounds
- 1 libraries
- 6 places of worship
- 1 gas stations
- 1 EV charging stations
- 1 police & fire stations
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