Crystal Bay is a township in Lake County, Minnesota, home to about 469 people across 204 square miles. Its ZIP code is 55603, and parts of 55607 and 55731 are in Crystal Bay too.
Homes sold for a median of $333 per square foot in the three months ending August 2026, a buyer’s market.
Mostly Crystal Bay; also Beaver Bay Township and Lake No. 1 UT
Mostly Lake No. 2 UT; part is in Crystal Bay
Mostly Ely; part is in Crystal Bay
Each card is that ZIP code’s whole market, including any part outside Crystal Bay. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Crystal Bay’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Minneapolis–Saint Paul International Airport / Wold–Chamberlain Field (MSP)206 miles away |
|---|---|
| Closer regional airport | Duluth International Airport (DLH)63 miles away |
| Nearest city of 250,000+ | St. Paul, MN200 miles away |
| Nearest city of 1 million+ | Chicago, IL439 miles away |
Straight-line distances from the center of Crystal Bay; driving is longer.
Source: Airports from OurAirports (scheduled passenger service); city centers and populations from the U.S. Census Bureau.
Source: Members of Congress from the congress-legislators project; districts from the Census Bureau’s relationship files; governor and mayor from Wikidata.
Crystal Bay had 435 residents in the 2020 census, down 28% since 2000.
It’s the 1133rd largest of 2,727 towns in Minnesota by population.
Lake County grew from 4,654 residents in 1900 to 10,905 in 2020.
Lake County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 76°F in summer, and winter lows average -5°F. About 30 inches of rain and melted snow fall in a typical year.
Source: NOAA 1991–2020 climate normals, Isabella 14w, MN weather station (9 miles away).
3,213 jobs at 340 businesses in Lake County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
1 doctors and other health care providers list an office in Crystal Bay.
Nearest hospitals
Providers with an office here
| Mental health providers | 1 |
|---|
Source: Hospitals from CMS Hospital General Information (ratings are CMS overall star ratings); straight-line distances; providers from the CMS National Plan and Provider Enumeration System (NPPES), by practice address and primary specialty.
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Shares ZIP codes with Ely, Morse Township (St. Louis County), Fall Lake, Lake No. 2 UT, Eagles Nest, Beaver Bay Township, Breitung, Northeast St. Louis UT, Birch Lake UT, Stony River, Lake No. 1 UT and Winton.
Town boundaries don’t always match ZIP codes: a ZIP code can cross into neighboring towns, and a town can share a ZIP code with its neighbors. Facts describe the town itself; market figures describe whole ZIP codes.