Browse / United States / Washington / Sudden Valley
Sudden Valley
WashingtonCDP
Sudden Valley
Total population
6,084
Median home value
$489,200
Bachelor's+
Median income
$100,930
Demographic figures from US Census Bureau · ACS 5-year estimates. Overview below cites Wikipedia and may reference a different year.
City facts
Facts from Wikidata (CC0).
Overview
Sudden Valley is a census-designated place (CDP) just outside Bellingham in Whatcom County, Washington. The population was 6,354 at the 2020 census, down from 6,441 at the 2010 census.
Read more on WikipediaHistory & geography
History
The original owner of the area was Banning Austin. In 1949, Austin sold the land to Glen and Betty Corning, who named it "the Ranch" and lived there with their children until in 1968 they sold 1,200 acres of property for $1.8 million. The new owner was Ken Sanwick of Sudden Valley Inc. Sanwick envisioned the land as "Sudden Valley Undevelopment" and wanted to preserve the natural surroundings while still incorporating homes into the wilderness. By 1969, the County Commissioners approved the first plan for 158 lots west of Lake Whatcom Boulevard. The first property owner was Mae Schatz, who bought Division 1 Lot 112 in May 1969. In the 1970s, the Valley changed ownership a few times. SunMark Inc. bought out the Sanwick Corporation in 1973, and in 1975 Continental Mortgage Investors took over from SunMark as the developer. This was short-lived, as CMI declared bankruptcy not long after. In December 1976, ownership and control was transferred to the newly named Sudden Valley Community Association. The owner of SunMark, Roger Ufkes, who happened to be the son of the first property owner, formed the original board of directors for the new Community Association. Ufkes served on the Board for two years in the early 1970s and is credited for urging property owners to buy the golf course and all its subsidiaries for $1.4 million. The one‐time assessment fee of $4,000 was voted on and passed by the residents. From this point on, the SVCA held the title to all the roads, parks, greenbelt, recreation facilities, marina, airstrip, and the country club. Sudden Valley was well on its way to becoming the community it is today. Ever since its conception in the late 1960s, over 7,000 residents, plus an abundance of wildlife call it home. Sudden Valley offers activities for…
Excerpted from the corresponding Wikipedia article (CC BY-SA).
Demographics & economy
Race & ethnicity
Source: US Census Bureau — American Community Survey, 5-year estimates.
Geography
Coordinates & boundaries from the US Census TIGER/Line shapefiles.
Climate
Current forecast
Forecast for Sudden Valley, WA from NOAA NWS API.
Air quality
Industrial & pollution facilities
Natural hazard risk
Health (adults)
Age-adjusted prevalence estimates from CDC PLACES (latest release).
Walkability
Amenities nearby
Wildlife & biodiversity
Schools
Largest nearby schools
- Squalicum High SchoolHigh · Bellingham · 1,280 students · 20:1 ratio
- Bellingham High SchoolHigh · Bellingham · 1,218 students · 21:1 ratio
- Sehome High SchoolHigh · Bellingham · 1,163 students · 21.5:1 ratio
- Kulshan Middle SchoolMiddle · Bellingham · 623 students · 16.8:1 ratio
- Whatcom Middle SchoolMiddle · Bellingham · 600 students · 16.7:1 ratio
- Fairhaven Middle SchoolMiddle · Bellingham · 597 students · 17.1:1 ratio
- Shuksan Middle SchoolMiddle · Bellingham · 579 students · 16.1:1 ratio
- Mount Baker Senior HighHigh · DEMING · 517 students · 19.9:1 ratio
Public K–12 schools within ~10 mi from Urban Institute Education Data Portal (NCES Common Core of Data, 2022).
Earthquake history
Photos
Sights & places nearby
Notable people from here
Geography & sun
Elevation, sunrise/sunset and daylight from Open-Meteo. Solar climatology from NASA POWER.
Nearby airports
Public attention
Pageview totals from the Wikimedia Pageviews API.
Books about Sudden Valley


Search results from Open Library.
Recent natural events nearby
- Wildfire Electric, Whatcom, WashingtonWildfires · 2026-08-22 · 42 mi
- Wildfire Thunder Creek, Skagit, WashingtonWildfires · 2026-08-22 · 61 mi
- Wildfire SISI, Chelan, WashingtonWildfires · 2026-08-14 · 74 mi
- Wildfire KING, Kittitas, WashingtonWildfires · 2026-08-19 · 100 mi
- Wildfire GOAT, Kittitas, WashingtonWildfires · 2026-08-22 · 106 mi
- Wildfire SINLAHEKIN, Okanogan, WashingtonWildfires · 2026-07-26 · 121 mi
- Wildfire PEARL HILL, Douglas, WashingtonWildfires · 2026-07-25 · 135 mi
- Wildfire RANSIER, Yakima, WashingtonWildfires · 2026-07-26 · 179 mi
Wildfires, storms and other events from NASA EONET (last 12 months, within 250 mi).
Ground air-quality sensors
Recently spotted species








Research-grade observations from iNaturalist (within ~15 mi).
Nearest stream gauge
Live readings from USGS NWIS · measured 2026-09-17 07:45 UTC.
Events
Gallery
Sources
- • Wikipedia
- • US Census Bureau (ACS 5-year estimates)
- • NOAA National Weather Service
- • Wikidata
- • USGS NWIS (water data)
- • NCES via Urban Institute Education Data Portal
- • iNaturalist
- • CDC PLACES
- • Open-Meteo / sunrise-sunset.org
- • Wikipedia Pageviews API
- • Open Library
- • NASA EONET