Sylvan Township (Washtenaw County) is a township in Washtenaw County, Michigan, home to about 3,451 people across 33 square miles. It has no ZIP code of its own: it’s part of 48118 and 49240.
Homes sold for a median of $206 per square foot across 2 ZIP codes in the three months ending August 2026, and all of them were seller’s markets.
Mostly Chelsea; part is in Sylvan Township (Washtenaw County)
Mostly Grass Lake; part is in Sylvan Township (Washtenaw County)
Each card is that ZIP code’s whole market, including any part outside Sylvan Township (Washtenaw County). Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Sylvan Township (Washtenaw County)’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Detroit Metropolitan Wayne County Airport (DTW)36 miles away |
|---|---|
| Nearest city of 250,000+ | Detroit, MI49 miles away |
| Nearest city of 1 million+ | Chicago, IL189 miles away |
Straight-line distances from the center of Sylvan Township (Washtenaw County); 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.
Sylvan Township (Washtenaw County) had 3,311 residents in the 2020 census, down 48% since 2000.
It’s the 516th largest of 1,531 towns in Michigan by population.
Washtenaw County grew from 47,761 residents in 1900 to 372,258 in 2020.
Washtenaw County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 82°F in summer, and winter lows average 16°F. About 34.6 inches of rain and melted snow fall in a typical year, with about 33 inches of snow.
Source: NOAA 1991–2020 climate normals, Chelsea, MI weather station (2 miles away).
158,858 jobs at 8,322 businesses in Washtenaw County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
403 doctors and other health care providers list an office in Sylvan Township (Washtenaw County)’s ZIP codes.
Nearest hospitals
Providers with an office here
| Primary care doctors | 60 |
|---|---|
| Specialist doctors | 67 |
| Dentists | 20 |
| Nurse practitioners and physician assistants | 64 |
| Mental health providers | 84 |
| Physical and occupational therapists | 88 |
| Optometrists | 4 |
| Chiropractors | 16 |
| Pharmacies | 10 |
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 (6 nearby)
Pharmacies (1 nearby)
Libraries (1 nearby)
Theaters and performance venues (1 nearby)
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.
Public schools here are run by Chelsea School District, Grass Lake Community Schools. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| North Creek Elementary SchoolChelsea | Pre-K–2 | 485 | Public | 1.9 mi |
| George Long Elementary SchoolGrass Lake | K–5 | 650 | Public | 8.8 mi |
| South Meadows Elementary SchoolChelsea | 3–5 | 476 | Public | 1.5 mi |
| Beach Middle SchoolChelsea | 6–8 | 525 | Public | 2.2 mi |
| Grass Lake Middle SchoolGrass Lake | 6–8 | 290 | Public | 8.6 mi |
| Chelsea High SchoolChelsea | 9–12 | 750 | Public | 2.6 mi |
| Grass Lake High SchoolGrass Lake | 9–12 | 394 | Public | 9.1 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Grass Lake, Chelsea, Leoni, Lima, Lyndon, Waterloo, Dexter Township, Sharon, Norvell, Napoleon and Freedom.
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.