ZIP code · Lacrosse · Washington · United States
ZIP code 99143 — Lacrosse
ZIP code 99143 serves Lacrosse, Washington.
- Postal code
- 99143Single source Value from one source, not cross-checked.
- City
- Lacrosse
- County
- Whitman FIPS 53075
- State
- Washington
- Country
- United States
- Coordinates
- 46.7717, -117.7703 — precision estimated (postal-area centroid)
View on OpenStreetMap - Population
- 603 (ZCTA, ACS 5-year)
- Population density
- 2 / sq mi
- Land area
- 331.3 sq mi (858.1 km²) (ZCTA, ACS 5-year)
- Median household income
- $35,385
- Per-capita income
- $34,340
- Median age
- 56
- Households
- 294
- Housing units
- 346
- Median home value
- $120,300
- Median gross rent
- $666 / month
- Congressional district
- WA-5 (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
- 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 99143 with another ZIP · ZIPs within 25 miles · distance from 99143
Map of ZIP code 99143
Climate — monthly normals
Warmest month Jul (avg high 90°F), coldest Dec (avg low 25°F).
| Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Avg high °F | 39 | 45 | 54 | 62 | 72 | 79 | 90 | 89 | 79 | 63 | 47 | 38 |
| Avg low °F | 26 | 27 | 31 | 36 | 42 | 48 | 53 | 52 | 44 | 36 | 30 | 25 |
| Precip in | 2.0 | 1.3 | 1.7 | 1.3 | 1.3 | 1.0 | 0.3 | 0.3 | 0.5 | 1.1 | 2.0 | 2.4 |
NOAA 1991–2020 climate normals from the nearest station: LACROSSE (6.2 mi) · NOAA NCEI
Places in ZIP 99143
- 1 schools
- 1 supermarkets
- 1 restaurants & cafés
- 1 bars & pubs
- 4 parks
- 1 libraries
- 1 post offices
- 4 places of worship
- 1 banks
- 2 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