Rock River Township, Michigan

Coordinates: 46°21′05″N 86°57′56″W / 46.35139°N 86.96556°W / 46.35139; -86.96556
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Rock River Township, Michigan
Location within Alger County (red) and the administered village of Chatham (pink)
Location within Alger County (red) and the administered village of Chatham (pink)
Rock River Township is located in Michigan
Rock River Township
Rock River Township
Location within the state of Michigan
Rock River Township is located in the United States
Rock River Township
Rock River Township
Location within the United States
Coordinates: 46°21′05″N 86°57′56″W / 46.35139°N 86.96556°W / 46.35139; -86.96556
Country United States
State Michigan
County Alger
Government
 • SupervisorTeri Grout
 • ClerkDawn Leppanen
Area
 • Total81.0 sq mi (209.8 km2)
 • Land80.7 sq mi (209.1 km2)
 • Water0.3 sq mi (0.7 km2)
Elevation
988 ft (301 m)
Population
 (2020)
 • Total1,231
 • Density15.0/sq mi (5.8/km2)
Time zoneUTC-5 (Eastern (EST))
 • Summer (DST)UTC-4 (EDT)
ZIP code(s)
49806 (Au Train)
49816 (Chatham)
49822 (Deerton)
49825 (Eben Junction)
49826 (Rumely)
49885 (Skandia)
49891 (Trenary)
Area code906
FIPS code26-69160[1]
GNIS feature ID1626993[2]

Rock River Township is a civil township of Alger County in the U.S. state of Michigan. The population was 1,231 at the 2020 census.[3]

Geography[edit]

According to the United States Census Bureau, the township has a total area of 81.0 square miles (209.8 km2), of which 80.7 square miles (209.1 km2) is land and 0.27 square miles (0.7 km2), or 0.31%, is water.[4]

Communities[edit]

Demographics[edit]

Historical population
CensusPop.Note
19601,354
19701,202−11.2%
19801,40817.1%
19901,279−9.2%
20001,213−5.2%
20101,212−0.1%
Source: Census Bureau. Census 1960- 2000, 2010.

In 2000, there were 1,213 people, 505 households, and 363 families residing in the township.[1] The racial makeup of the township was 96.13% White, 1.98% Native American, 0.08% Asian, and 1.81% from two or more races. Among them, 42.2% were of Finnish, 8.1% German, 6.5% French, 6.3% Polish and 5.6% American ancestry. By the publication of the 2020 census, its population grew to 1,231.[3]

In 2000, there were 505 households, out of which 28.3% had children under the age of 18 living with them, 60.2% were married couples living together, 5.9% had a female householder with no husband present, and 28.1% were non-families. 24.0% of all households were made up of individuals, and 10.9% had someone living alone who was 65 years of age or older. The average household size was 2.39 and the average family size was 2.82.

In the township the population was spread out, with 22.3% under the age of 18, 7.9% from 18 to 24, 25.0% from 25 to 44, 30.0% from 45 to 64, and 14.8% who were 65 years of age or older. The median age was 42 years. For every 100 females, there were 102.8 males. For every 100 females age 18 and over, there were 104.3 males.

In 2000, the median income for a household in the township was $32,619, and the median income for a family was $36,750. Males had a median income of $32,132 versus $24,583 for females. The per capita income for the township was $16,360. About 8.1% of families and 10.8% of the population were below the poverty line, including 16.9% of those under age 18 and 11.1% of those age 65 or over. The 2021 census estimates determined the median household income was $54,677.[3]

References[edit]

  1. ^ a b "U.S. Census website". United States Census Bureau. Retrieved January 31, 2008.
  2. ^ U.S. Geological Survey Geographic Names Information System: Rock River Township, Michigan
  3. ^ a b c "Explore Census Data". data.census.gov. Retrieved August 4, 2023.
  4. ^ "Geographic Identifiers: 2010 Demographic Profile Data (G001): Rock River township, Alger County, Michigan". U.S. Census Bureau, American Factfinder. Archived from the original on February 12, 2020. Retrieved June 5, 2013.
  5. ^ U.S. Geological Survey Geographic Names Information System: Eben Junction, Michigan
  6. ^ 49825 5-Digit ZCTA, 498 3-Digit ZCTA - Reference Map - American FactFinder[permanent dead link], U.S. Census Bureau, 2000 census
  7. ^ a b ZIP Code Lookup, U.S. Postal Service
  8. ^ a b c d Romig, Walter (1986) [1973]. Michigan Place Names. Detroit, Michigan: Wayne State University Press. ISBN 0-8143-1838-X.
  9. ^ U.S. Geological Survey Geographic Names Information System: Rumely, Michigan
  10. ^ 49826 5-Digit ZCTA, 498 3-Digit ZCTA - Reference Map - American FactFinder[permanent dead link], U.S. Census Bureau, 2000 census
  11. ^ U.S. Geological Survey Geographic Names Information System: Rumely Post Office (historical)
  12. ^ U.S. Geological Survey Geographic Names Information System: Slapneck, Michigan
  13. ^ U.S. Geological Survey Geographic Names Information System: Sundell, Michigan
  14. ^ U.S. Geological Survey Geographic Names Information System: Sundell Post Office (historical)
  15. ^ U.S. Geological Survey Geographic Names Information System: Dorsey, Michigan
  16. ^ U.S. Geological Survey Geographic Names Information System: Winters Post Office (historical)