Lake Sammamish
- Area
- 20 km²
- Max depth
- 35 m
- Tonight
- 37°FPartly cloudy · Wind 1 mph ESE
Lake Sammamish is a lake at 9 m above sea level in Washington, United States, 20 km² in area and 11.3 km long.
All facts
- Surface elevation
- 9 m
- Length
- 11.3 km
- Shoreline
- 31.9 km
Lake Sammamish in numbers
Shoreline from OpenStreetMap.
- Shoreline
- 31.9 km≈8 h to walk around
Lake Sammamish 3D map
Drag to orbit · click, then scroll to zoom (or Ctrl/⌘ + scroll) · One finger scrolls the page · two fingers orbit and zoom · 13.3 × 13.3 km
Lake Sammamish terrain and contours
20 m contours from the USGS 3DEP 10 m terrain model. Click two points on the map to draw your own cross-section.Tap two points on the map to draw your own cross-section.
Lake Sammamish elevation profile
West → east through the centre
Lake Sammamish weather
Tonight · Partly cloudy · 37°F (3°C) · 4% chance of precipitation · Wind 1 mph ESE
Lake Sammamish forecast for about 61 m.
- Tonight37°4%1 mph ESE
- Sat42°57°43%1 mph N
- Sun43°59°43%1 mph N
- Mon43°60°18%1 mph NNW
- Tue42°59°33%1 mph SSW
- Wed38°60°27%2 mph NNE
- Thu38°60°8%1 mph NNE
Forecast data: NOAA National Weather Service, public domain, model run Oct 23, 18:26 UTC.
Camping & parking near Lake Sammamish
Campsites, parking, trailheads and mountain huts mapped in OpenStreetMap around Lake Sammamish, nearest first, by straight-line distance. Check access, fees and permits locally.
Nearest parking
1.3 km NW
Nearest caravan site
Trailer Inns of Bellevue
Nearest trailhead
6.5 km W
Nearest campsite
Hans Jensen Youth Group Camp
All mapped places 6
| Place | Distance |
|---|---|
| Parking | 1.3 km NW |
| Parking | 1.3 km NW |
| Parking | 1.4 km NW |
| Trailer Inns of BellevueCaravan site | 5.5 km SW |
| Trailhead | 6.5 km W |
| Hans Jensen Youth Group CampCampsite | 6.5 km SSE |
Slope
Share of the 13.3 × 13.3 km view by steepness, from the 10 m model.
Mostly gentle: 90% of the view is under 15°.
- Steeper than 30°
- 1.3% of the 177 km² view
- Relief in view
- 436 m low point 7 m
Land cover
ESA WorldCover 10 m classification of the same area.
Snow & ice means glaciers and year-round snow (a yearly average), not today’s snow cover.
Wildlife seen nearby
Sightings of the most-seen species on iNaturalist (research grade) within 6.6 km; 2,236 species recorded in all.
Sightings per species 6
- Mallard601
- American Robin574
- Great Blue Heron531
- Song Sparrow473
- Dark-eyed Junco465
- American Crow442
Where Lake Sammamish sits
- Region
- Washington57United States932North America1,313
Nearby places
Snoqualmie Valley↑13 km E
Lake Washington5 m↑13 km WNW
Lake Union↑19 km WNW
Green Lake↑20 km WNW
Lake Youngs↑21 km S
More 1
Lake Sammamish downloads: topographic map, heightmap, STL 3D model and DEM
Free files made in your browser from this page's terrain data. No sign-up; credit the sources below.
Print & wall
3D printing & 3D apps
GIS & GPS
Free to use with credit: see the data sources
Data sources
- Terrain
- U.S. Geological Survey, 3D Elevation Program (public domain)
- Imagery
- Contains modified Copernicus Sentinel data 2026 (scene 2026-08-07)
- Land cover
- © ESA WorldCover project 2021 / Contains modified Copernicus Sentinel data (2021) processed by ESA WorldCover consortium
- Facts
- Wikidata (CC0)
- Camping & parking, Geometry
- © OpenStreetMap contributors (ODbL)
- Wildlife
- iNaturalist community observations, counts only
- Panorama
- Includes Copernicus WorldDEM-90 © DLR e.V. 2010-2014 and © Airbus Defence and Space GmbH 2014-2018 provided under COPERNICUS by the European Union and ESA; all rights reserved. The European Union, ESA, DLR and Airbus incur no liability for any use of this data and do not endorse this service.
- Forecast
- Weather forecast from NOAA National Weather Service (public domain)