Casnovia is a township in Muskegon County, Michigan, home to about 2,806 people across 36 square miles. Its ZIP codes are 49303 and 49318, and parts of 49451 are in Casnovia too.
Homes sold for a median of $140 per square foot across 2 ZIP codes in the three months ending August 2026, and 0 of 2 were seller’s markets.
Mostly Casnovia; also Ashland and Moorland
Mostly Casnovia; also Chester Township (Ottawa County) and Tyrone Township (Kent County)
Mostly Ravenna; part is in Casnovia
Each card is that ZIP code’s whole market, including any part outside Casnovia. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
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| Nearest major airport | Gerald R. Ford International Airport (GRR)30 miles away |
|---|---|
| Closer regional airport | Muskegon County Airport (MKG)20 miles away |
| Nearest city of 250,000+ | Chicago, IL135 miles away |
Straight-line distances from the center of Casnovia; 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.
Casnovia had 2,793 residents in the 2020 census, up 5% since 2000.
It’s the 620th largest of 1,531 towns in Michigan by population.
Muskegon County grew from 37,036 residents in 1900 to 175,824 in 2020.
Muskegon County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 83°F in summer, and winter lows average 14°F. About 38.6 inches of rain and melted snow fall in a typical year, with about 48 inches of snow.
Source: NOAA 1991–2020 climate normals, Kent City 2 Sw, MI weather station (5 miles away).
51,826 jobs at 3,147 businesses in Muskegon County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
2 doctors and other health care providers list an office in Casnovia’s ZIP codes.
Nearest hospitals
Providers with an office here
| Mental health providers | 2 |
|---|
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.
Parks (1 nearby)
Grocery stores
Counts are within about 4 miles of the center of town.
Source: Map data © OpenStreetMap contributors (openstreetmap.org/copyright), as mapped by volunteers; it can miss places or include closed ones.
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Shares ZIP codes with Ravenna, Moorland, Egelston, Sullivan, Chester Township (Ottawa County), Tyrone Township (Kent County) and Ashland.
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.