Grundy County, Illinois

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Grundy County, Illinois
Grundy County Courthouse
Map of Illinois highlighting Grundy County
Location in the state of Illinois
Map of the United States highlighting Illinois
Illinois's location in the U.S.
Founded February 17, 1841
Seat Morris
Largest city Morris
Area
 • Total 430.45 sq mi (1,115 km2)
 • Land 418.04 sq mi (1,083 km2)
 • Water 12.40 sq mi (32 km2), 2.88%
Population
 • (2010) 50,063
 • Density 119/sq mi (46/km²)
Time zone Central: UTC-6/-5

Grundy County is a county located in the U.S. state of Illinois. According to the 2010 census, it has a population of 50,063, which is an increase of 33.4% from 37,535 in 2000.[1] Its county seat is Morris.[2] The center of population of Illinois is located in Grundy County, just northeast of the Village of Mazon.[3] This county is part of the Chicago metropolitan area. Illinois' State Fossil, the unique and bizarre Tully Monster was first found in Mazon Creek. Grundy County Speedway is located in Morris.

Geography

According to the 2010 census, the county has a total area of 430.45 square miles (1,114.9 km2), of which 418.04 square miles (1,082.7 km2) (or 97.12%) is land and 12.40 square miles (32.1 km2) (or 2.88%) is water.[4]

Major highways

Adjacent counties

Political subdivisions

Cities

Villages

Townships

Grundy County is divided into seventeen townships:

Demographics

Historical population
Census Pop. %±
18503,023
—
186010,379243.3%
187014,93843.9%
188016,73212.0%
189021,02425.7%
190024,13614.8%
191024,1620.1%
192018,580−23.1%
193018,6780.5%
194018,398−1.5%
195019,2174.5%
196022,35016.3%
197026,53518.7%
198030,58215.3%
199032,3375.7%
200037,53516.1%
201050,06333.4%
Est. 201250,2810.4%
U.S. Decennial Census[5]
2012 Estimate[6]
2000 census age pyramid for Grundy County

As of the U.S. Census of 2000,[7] there were 37,535 people, 14,293 households, and 10,276 families residing in the county. The population density was 89 people per square mile (35/km²). There were 15,040 housing units at an average density of 36 per square mile (14/km²). The racial makeup of the county was 97.09% White, 0.19% Black or African American, 0.24% Native American, 0.30% Asian, 0.01% Pacific Islander, 1.30% from other races, and 0.87% from two or more races. 4.13% of the population were Hispanic or Latino of any race. 20.7% were of German, 15.2% Irish, 12.0% Italian, 8.3% Norwegian, 7.4% English and 6.7% American ancestry according to Census 2000. 95.2% spoke English and 3.7% Spanish as their first language.

There were 14,293 households out of which 35.30% had children under the age of 18 living with them, 59.60% were married couples living together, 8.60% had a female householder with no husband present, and 28.10% were non-families. 23.50% of all households were made up of individuals and 9.40% had someone living alone who was 65 years of age or older. The average household size was 2.60 and the average family size was 3.09.

In the county the population was spread out with 26.60% under the age of 18, 8.30% from 18 to 24, 30.20% from 25 to 44, 22.50% from 45 to 64, and 12.30% who were 65 years of age or older. The median age was 36 years. For every 100 females there were 98.90 males. For every 100 females age 18 and over, there were 97.40 males.

The median income for a home in the county is $51,719, and the median income for a family was $60,862. Males had a median income of $46,392 versus $26,487 for females. The per capita income for the county was $22,591. About 3.20% of families and 4.80% of the population were below the poverty line, including 5.00% of those under age 18 and 6.00% of those age 65 or over.

History

Grundy County was established on February 17, 1841. It was formed out of LaSalle County and named for Felix Grundy.[8]

  • Grundy County at the time of its creation in 1841

Climate and weather

Morris, Illinois
Climate chart (explanation)
JFMAMJJASOND
 
 
1.8
 
30
13
 
 
1.6
 
35
18
 
 
2.7
 
47
29
 
 
3.5
 
61
39
 
 
4
 
73
50
 
 
4.2
 
83
59
 
 
3.7
 
85
63
 
 
3.4
 
83
61
 
 
3
 
76
53
 
 
2.5
 
64
41
 
 
3.1
 
48
31
 
 
2.4
 
35
19
Average max. and min. temperatures in °F
Precipitation totals in inches
Source: The Weather Channel[9]

In recent years, average temperatures in the county seat of Morris have ranged from a low of 13 °F (−11 °C) in January to a high of 85 °F (29 °C) in July, although a record low of −24 °F (−31 °C) was recorded in January 1985 and a record high of 103 °F (39 °C) was recorded in June 1988. Average monthly precipitation ranged from 1.59 inches (40 mm) in February to 4.16 inches (106 mm) in June.[9]

See also

References

  1. ↑ "Grundy County QuickFacts". United States Census Bureau. Retrieved 2011-11-05. 
  2. ↑ "Find a County". National Association of Counties. Retrieved 2011-06-07. 
  3. ↑ Population and Population Centers by State, 2010 
  4. ↑ "Census 2010 U.S. Gazetteer Files: Counties". United States Census. Retrieved 2011-11-05. 
  5. ↑ "U.S. Decennial Census". Census.gov. Retrieved July 27, 2013. 
  6. ↑ "Annual Estimates of the Resident Population: April 1, 2010 to July 1, 2012". Census.gov. Retrieved July 27, 2013. 
  7. ↑ "American FactFinder". United States Census Bureau. Retrieved 2008-01-31. 
  8. ↑ Adams, James N. (compiler) (1989), Keller, William E., ed., Illinois Place Names, Springfield: Illinois State Historical Society, p. 581, ISBN 0-912226-24-2 
  9. ↑ 9.0 9.1 "Monthly Averages for Morris, Illinois". The Weather Channel. Retrieved 2011-01-27. 

External links

Kendall County
LaSalle County Will County
   Grundy County, Illinois  
Livingston County Kankakee County
Municipalities and communities of Grundy County, Illinois, United States
Cities
Villages
Townships
Unincorporated
communities
  • Aux Sable
  • Central City
  • Clarke City‡
  • Divine
  • Gorman
  • Harrisonville
  • Langham
  • Mazonia
  • Nettle Creek
  • Paytonville
  • Sand Ridge
  • Saratoga
  • Stockdale
  • Wauponsee
Footnotes
‡This populated place also has portions in an adjacent county or counties
Major city
Cities
(over 30,000 in 2010)
Towns and villages
(over 30,000 in 2010)
Counties
Regions
Sub-regions
Springfield (capital)
Topics
Regions
Cities,
towns
and villages
Counties

Coordinates: 41°17′N 88°26′W / 41.29°N 88.43°W / 41.29; -88.43

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