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Coupeville, WA
Full City Profile · Washington · Island County County
2.8
/5.0
C+
Fair
1,934
Population
1,523/sq mi density
$66,696
Median Income
$43,208 per capita
$495,400
Home Value
$622,347 Zillow
$1,009
Median Rent
34.2% income on rent
50°F
Avg Temperature
269 sunny days/yr
108
Violent Crime/100K
1,295 property/100K
C+
Overall
2.8 / 5.0
Fair overall score based on economy, affordability, safety and education
A
Economy
4.1 / 5.0
$66,696 median income, 1.0% unemployment
C
Affordability
2.5 / 5.0
$495,400 home value, $1,009/mo rent
F
Safety
1.0 / 5.0
108 violent crimes/100K
B
Education
3.5 / 5.0
31.2% bachelor's degree or higher
Coupeville experiences four distinct seasons with an average annual temperature of 50°F (10°C). Winters average 40°F in January while summers reach 61°F in July. The area gets 269 sunny days per year. Annual precipitation totals 21.7 inches. The area receives 2.5 inches of snow annually. Air quality is rated Good with a median AQI of 28.
Temperature
40°F Jan (5°C)
61°F Jul (16°C)
| Annual Average | 50.2°F |
| 7% below US avg | |
| January Average | 40°F (5°C) |
| July Average | 61°F (16°C) |
| Sunny Days | 269 days/yr |
Geography
| Elevation | 29 ft (9 m) |
| Area | 1.2 sq mi (3.2 km²) |
| Population Density | 1,523/sq mi |
| Coordinates | 48.2188°N, 122.6795°W |
| Timezone | America/Los_Angeles |
| County | Island County County |
| Nearest Airport | Jefferson County International (TWD) 13 miles away |
Precipitation & Snow
Air Quality
| AQI Median | 28.0 |
| Rating | Good |
Natural Hazard Risk
| Overall Risk | Relatively Low |
| Risk Score | 78.0 / 100 |
| Social Vulnerability | 36.8 / 100 |
| Community Resilience | 80.4 / 100 |
Hazard Breakdown
| Tornado | Very Low |
| Earthquake | Relatively Moderate |
| Wildfire | Very Low |
| Flood | Relatively Low |
| Hail | Very Low |
| Strong Wind | Very Low |
| Heat Wave | Very Low |
| Winter Weather | Relatively Low |
| Lightning | Relatively Low |
| Ice Storm | Relatively Moderate |
| Drought | No Rating |
| Cold Wave | Relatively Low |
| Landslide | Relatively High |
| Coastal Flood | Relatively Moderate |
| Tsunami | Very Low |
| Volcano | Relatively Low |
| Avalanche | Very Low |
Source: FEMA National Risk Index v1.20 (Dec 2025)
Tsunami History
6 tsunamis recorded within 500 km. Highest wave on record: 38.0 m (125 ft).
| Year | Location | Cause | Max Wave | Deaths | Distance |
| 2007 | CHEHALIS LAKE, CHILLIWACK | Meteorological | 38.0 m | — | 147 km |
| 1894 | PUYALLUP RIVER DELTA, TACOMA, WA | Meteorological | 3.0 m | 2 | 105 km |
| 1891 | WASHINGTON | Eruption + Earthquake | 2.4 m | — | 66 km |
| 1949 | PUGET SOUND, WA | Meteorological | 2.4 m | — | 103 km |
| 1949 | PUGET SOUND, WA | Eruption + Earthquake | — | 8 | 117 km |
| 1820 | CAMANO ISLAND, WA | Meteorological | — | — | 30 km |
Source: NOAA/NCEI Historical Tsunami Database. Sorted by wave height.
Nearby Volcanoes
5 volcanoes within 200 km. Closest: Baker (89 km).
| Name | Type | Elevation | Last Eruption | Distance |
| Baker | Stratovolcano(es) | 3,285 m (10,778 ft) | 1880 | 89 km |
| Glacier Peak | Stratovolcano | 3,213 m (10,541 ft) | 1700 | 117 km |
| Rainier | Stratovolcano | 4,392 m (14,409 ft) | 1450 | 167 km |
| Garibaldi | Stratovolcano | 2,678 m (8,786 ft) | -8060 | 183 km |
| Garibaldi Lake | Volcanic field | 2,316 m (7,598 ft) | Unknown | 192 km |
Source: Smithsonian Institution Global Volcanism Program (GVP). Sorted by distance.
Monthly Weather
| Month | Avg Temperature | Precipitation | Summary |
|---|---|---|---|
| January | 40°F (5°C) | 2.7 in | |
| February | 42°F (6°C) | 1.9 in | |
| March | 45°F (7°C) | 1.8 in | |
| April | 48°F (9°C) | 1.5 in | |
| May | 53°F (12°C) | 1.4 in | |
| June | 57°F (14°C) | 1.3 in | |
| July | 61°F (16°C) | 0.9 in | Warmest, Driest |
| August | 61°F (16°C) | 0.9 in | |
| September | 58°F (14°C) | 1.2 in | |
| October | 51°F (10°C) | 1.8 in | |
| November | 44°F (7°C) | 2.8 in | |
| December | 40°F (5°C) | 2.9 in | Coldest, Wettest |
Coupeville has a seasonal temperature swing of 21°F / from 40°F in December to 61°F in July. Total annual precipitation is 21.1 inches, with December being the wettest month (2.9") and July the driest (0.9").