Au Sable is a charter township in Iosco County, Michigan, home to about 2,298 people across 21 square miles. It has no ZIP code of its own: it’s part of 48730 and 48750.
Homes sold for a median of $172 per square foot across 2 ZIP codes in the three months ending August 2026, and 1 of 2 were seller’s markets.
Mostly East Tawas; part is in Au Sable
Mostly Oscoda; part is in Au Sable
Each card is that ZIP code’s whole market, including any part outside Au Sable. Seller’s market: under 4 months of supply; buyer’s market: over 6. Methodology
We’re writing up Au Sable’s story and what everyday life there is like, for people thinking about moving in.
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| Nearest major airport | Gerald R. Ford International Airport (GRR)152 miles away |
|---|---|
| Closer regional airport | Alpena County Regional Airport (APN)45 miles away |
| Nearest city of 250,000+ | Detroit, MI142 miles away |
| Nearest city of 1 million+ | Chicago, IL282 miles away |
Straight-line distances from the center of Au Sable; 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.
Au Sable had 2,016 residents in the 2020 census, down 10% since 2000.
It’s the 749th largest of 1,531 towns in Michigan by population.
Iosco County grew from 10,246 residents in 1900 to 25,237 in 2020.
Iosco County, 1900–2020
Source: U.S. Census Bureau decennial censuses (counties 1900–1990 from the Bureau’s historical county file).
Average highs peak around 80°F in summer, and winter lows average 13°F. About 32.3 inches of rain and melted snow fall in a typical year, with about 49 inches of snow.
Source: NOAA 1991–2020 climate normals, E Tawas, MI weather station (12 miles away).
6,756 jobs at 623 businesses in Iosco County. The biggest industries by employees:
Source: U.S. Census Bureau County Business Patterns 2023 (private employers; jobs counted where people work).
53 doctors and other health care providers list an office in Au Sable’s ZIP codes.
Nearest hospitals
Providers with an office here
| Primary care doctors | 6 |
|---|---|
| Specialist doctors | 2 |
| Dentists | 5 |
| Nurse practitioners and physician assistants | 10 |
| Mental health providers | 23 |
| Physical and occupational therapists | 3 |
| Optometrists | 2 |
| Chiropractors | 2 |
| Pharmacies | 5 |
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 (12 nearby)
Grocery stores (3 nearby)
Pharmacies (1 nearby)
Libraries (1 nearby)
Museums (2 nearby)
Counts are within about 3 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 Oscoda Area Schools. Check each district’s attendance zones for a specific address.
| School | Grades | Students | Type | Distance |
|---|---|---|---|---|
| Richardson Elementary SchoolOscoda | Pre-K–6 | 711 | Public | 1.1 mi |
| Oscoda Area High SchoolOscoda | 7–12 | 488 | Public | 1.0 mi |
| School | Grades | Students | Affiliation | Distance |
|---|---|---|---|---|
| Holy Family SchoolEast Tawas | Pre-K–6 | 89 | Roman Catholic | 12.3 mi |
Source: U.S. Department of Education, NCES: Common Core of Data (2024-2025) for public schools; Private School Universe Survey (2023-2024) for private schools. Listed by address; we don’t rate schools.
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Shares ZIP codes with Oscoda, East Tawas, Baldwin Township (Iosco County) and Wilber.
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.