ZIP code · Northport · Washington · United States
ZIP code 99157 — Northport
ZIP code 99157 serves Northport, Washington.
- Postal code
- 99157Single source Value from one source, not cross-checked.
- City
- Northport
- County
- Stevens FIPS 53065
- State
- Washington
- Country
- United States
- Coordinates
- 48.9247, -117.7931 — precision precise (locality)
View on OpenStreetMap - Population
- 719 (ZCTA, ACS 5-year)
- Population density
- 11 / sq mi
- Land area
- 65.2 sq mi (168.7 km²) (ZCTA, ACS 5-year)
- Median household income
- $44,969
- Per-capita income
- $29,258
- Median age
- 46.9
- Households
- 339
- Housing units
- 431
- Median home value
- $190,300
- Median gross rent
- $714 / 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
- 509Telephone 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 99157 with another ZIP · ZIPs within 25 miles · distance from 99157
Map of ZIP code 99157
Climate — monthly normals
Warmest month Aug (avg high 86°F), coldest Jan (avg low 21°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 31 | 39 | 49 | 60 | 70 | 75 | 85 | 86 | 75 | 57 | 41 | 32 |
| Avg low °F | 21 | 22 | 27 | 33 | 41 | 47 | 51 | 50 | 43 | 34 | 27 | 22 |
| Precip in | 2.2 | 1.3 | 1.6 | 1.7 | 2.1 | 2.4 | 1.0 | 0.6 | 1.0 | 1.6 | 2.2 | 2.5 |
NOAA 1991–2020 climate normals from the nearest station: NORTHPORT (2.4 mi) · NOAA NCEI
Places in ZIP 99157
- 2 schools
- 1 bars & pubs
- 2 parks
- 1 playgrounds
- 1 libraries
- 1 post offices
- 5 places of worship
- 1 gas 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