Alger County, Michigan

Alger County, Michigan, has 8,641 residents (July 2025 estimate). Its county seat is Munising. It uses Eastern Time and covers 915 sq mi (2,370 km²) of land.

DetroitGrand RapidsWarren
Alger County in Michigan
Keweenaw CountyLuce CountyMarquette CountyMunisingGrand MaraisChatham
Alger County and its neighbors (simplified outlines). Open in OpenStreetMap ↗
Resident population, July 2025
8,641
Land area
915 sq mi (2,370 km²)
County seat or government
Munising
Time zone
Eastern Time, Eastern TimeUTC-05:00 in January; UTC-04:00 in July
Median household income
$61,286 ± $1,930
Median home value
$176,200 ± $10,899
Median rent, with utilities
$714 ± $52
Homes lived in by their owners
86.3% ± 2.6 points
County type
County
Metro or micro area
Outside any metro or micro areaNext to: Marquette, MI micro area, Escanaba, MI micro area, and Houghton, MI micro area
Water area
4,133 sq mi (10,704 km²)
State
Michigan
County code (FIPS)
26003
Coordinates (central point)
46.521736, -86.657119

These coordinates mark a central point for the area, not a street address. Income, home value, rent and homes lived in by their owners: U.S. Census Bureau, American Community Survey 2020–2024 5-year estimates, ± margin at 90% confidence; checked on October 13, 2026.

Time zones in Alger County

Time zoneLocal time and UTC offsetNext clock change
Eastern TimeAmerica/DetroitUTC-05:00 in January; UTC-04:00 in July. Enable JavaScript for the live clock.Enable JavaScript for upcoming changes.
Eastern TimeAmerica/TorontoUTC-05:00 in January; UTC-04:00 in July. Enable JavaScript for the live clock.Enable JavaScript for upcoming changes.

Alger County straddles a time-zone line; check where you are with the time-zone finder. Your phone’s setting can differ.

ZIP Code areas, largest first

  1. 498624,546 people
  2. 498783,329 people
  3. 498851,947 people
  4. 49895840 people
  5. 49816666 people
  6. 49884634 people
  7. 49806605 people
  8. 49891548 people
  9. 49825328 people
  10. 49883234 people
  11. 49822214 people
  12. 49826214 people
All 13
  1. 49839198 people

13 ZIP Code areas overlap Alger County. People counts are 2020–2024 estimates for each whole ZIP area. Mailing ZIPs can differ; check an address with USPS ZIP Code Lookup.

Official county information

Alger County government website ↗ is the next stop for county offices, tax, voting, jury and records information. A geographic lookup cannot determine eligibility, tax liability or a court obligation.

Townships in Alger County, largest first

  1. Munising Township2,825 people
  2. Rock River Township1,173 people
  3. Au Train Township1,165 people
  4. Limestone Township442 people
  5. Onota Township435 people
  6. Mathias Township428 people
  7. Burt Township296 people
  8. Grand Island Township23 people

People counts are American Community Survey 2020–2024 5-year estimates. All townships in Michigan, by county

School districts in Alger County, largest first

  1. Munising Public Schools5,297 people
  2. Superior Central Schools2,095 people
  3. Autrain-Onota Public Schools1,077 people
  4. Burt Township School District296 people

Districts with land in the county; a district can cross county lines. People counts are American Community Survey 2020–2024 5-year estimates. A district boundary doesn’t decide which school a student attends.

Tribal areas in Alger County, largest first

  1. Sault Ste. Marie Reservation and Off-Reservation Trust Land1,890 people

American Indian, Alaska Native and Native Hawaiian areas as the Census Bureau maps them, with at least 2% of their area here, water included. These lines don’t decide membership, jurisdiction or land status.

Cities, towns and communities, largest first

These areas overlap the mapped boundary; an overlap does not mean that every address belongs to both.

  1. Munising, Michigan (city)1,975 people
  2. Grand Marais, Michigan (CDP)153 people
  3. Chatham, Michigan (village)135 people

Bordering areas, nearest first

Distances are straight lines between map points.

  1. Schoolcraft County, Michigan41 mi southeast
  2. Marquette County, Michigan45 mi west
  3. Delta County, Michigan51 mi south
  4. Luce County, Michigan54 mi east
  5. Keweenaw County, Michigan99 mi northwest

Before using this answer on a form

Use a precise point for address-level questions. A device accuracy circle can cross a boundary; confirm tax, voting or jury details with the responsible office.

Find the county where you are now, check its ZIP area, or check the time zone where you are.

See this county on Census.gov ↗

Areas that only touch the edge

These areas meet the boundary only along a sliver. Most addresses here are not in them; for an address near the line, check with the county.