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Mason County, Illinois

Coordinates: 40°14′N 89°55′W / 40.24°N 89.91°W / 40.24; -89.91
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Not to be confused with Mason, Illinois.
Mason County
County
Map of Illinois highlighting Mason County
Location within the U.S. state of Illinois
Map of the United States highlighting Illinois
Illinois's location within the U.S.
Coordinates: 40°14′N 89°55′W / 40.24°N 89.91°W / 40.24; -89.91
Country United States
State Illinois
Founded1841
Named forGeorge Mason
SeatHavana
Largest cityHavana
Area
 • Total563 sq mi (1,460 km2)
 • Land539 sq mi (1,400 km2)
 • Water24 sq mi (60 km2)  4.3%
Population
 (2010)
 • Total14,666
 • Density27/sq mi (10/km2)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
Congressional district18th
Websitewww.masoncountyil.org

Mason County is a county located in the U.S. state of Illinois. According to the 2010 census, it had a population of 14,666.[1] Its county seat is Havana.[2] The county is named in honor of George Mason, a member of the Virginia legislature who campaigned for the adoption of the United States Bill of Rights.

History

Mason County was created in 1841 out of portions of Tazewell and Menard counties.

  • Mason County at the time of its creation in 1841
    Mason County at the time of its creation in 1841

Geography

According to the U.S. Census Bureau, the county has a total area of 563 square miles (1,460 km2), of which 539 square miles (1,400 km2) is land and 24 square miles (62 km2) (4.3%) is water.[3]

Mason County is bounded on the south by the Sangamon River, and on the west by the Illinois River. These rivers join at the southwest tip of the County.

The soil covering much of Mason County is very sandy in composition. This was formed during the melting of the Wisconsin Glacier about 10,000 years before present. Meltwater from the glacier deposited large amounts of sand in a delta region near at the junction of the Sangamon and Illinois Rivers.

The sandy soil does not hold water well, quickly exposing crops to drought conditions as the water table drops during periods of low precipitation. The soil is, however, very good for growing vegetables that are otherwise not common in Illinois. Modern irrigation has made this a highly productive agricultural area.

A sand wetland on the Illinois River is managed by the U.S. Fish and Wildlife Service as the Chautauqua National Wildlife Refuge.

Climate and weather

Havana, Illinois
Climate chart (explanation)
J
F
M
A
M
J
J
A
S
O
N
D
 
 
1.9
 
 
32
14
 
 
1.9
 
 
38
19
 
 
3
 
 
50
30
 
 
3.5
 
 
63
40
 
 
4.4
 
 
74
51
 
 
3.8
 
 
84
60
 
 
3.9
 
 
88
64
 
 
3.5
 
 
86
61
 
 
3.2
 
 
80
52
 
 
2.9
 
 
68
41
 
 
3.3
 
 
51
30
 
 
2.6
 
 
37
19
█ Average max. and min. temperatures in °F
█ Precipitation totals in inches
Source: The Weather Channel[4]
Metric conversion
J
F
M
A
M
J
J
A
S
O
N
D
 
 
47
 
 
0
−10
 
 
49
 
 
3
−7
 
 
77
 
 
10
−1
 
 
88
 
 
17
4
 
 
113
 
 
23
11
 
 
97
 
 
29
16
 
 
98
 
 
31
18
 
 
88
 
 
30
16
 
 
82
 
 
27
11
 
 
73
 
 
20
5
 
 
83
 
 
11
−1
 
 
67
 
 
3
−7
█ Average max. and min. temperatures in °C
█ Precipitation totals in mm

In recent years, average temperatures in the county seat of Havana have ranged from a low of 14 °F (−10 °C) in January to a high of 88 °F (31 °C) in July, although a record low of −30 °F (−34 °C) was recorded in January 1999 and a record high of 106 °F (41 °C) was recorded in July 1983. Average monthly precipitation ranged from 1.85 inches (47 mm) in January to 4.43 inches (113 mm) in May.[4]

Major highways

Adjacent counties

National protected area

Demographics

Historical population
CensusPop.Note%±
18505,921—
186010,93184.6%
187016,18448.1%
188016,2420.4%
189016,067−1.1%
190017,4918.9%
191017,377−0.7%
192016,634−4.3%
193015,115−9.1%
194015,3581.6%
195015,326−0.2%
196015,193−0.9%
197016,1616.4%
198019,49220.6%
199016,269−16.5%
200016,038−1.4%
201014,666−8.6%
2014 (est.)13,898[5]−5.2%
U.S. Decennial Census[6]
1790-1960[7] 1900-1990[8]
1990-2000[9] 2010-2013[1]

As of the 2010 United States Census, there were 14,666 people, 6,079 households, and 4,060 families residing in the county.[10] The population density was 27.2 inhabitants per square mile (10.5/km2). There were 7,077 housing units at an average density of 13.1 per square mile (5.1/km2).[3] The racial makeup of the county was 98.1% white, 0.4% black or African American, 0.3% Asian, 0.2% American Indian, 0.1% from other races, and 0.9% from two or more races. Those of Hispanic or Latino origin made up 0.8% of the population.[10] In terms of ancestry, 33.8% were German, 15.6% were American, 11.1% were English, and 10.3% were Irish.[11]

Of the 6,079 households, 28.9% had children under the age of 18 living with them, 52.1% were married couples living together, 10.3% had a female householder with no husband present, 33.2% were non-families, and 28.4% of all households were made up of individuals. The average household size was 2.38 and the average family size was 2.87. The median age was 44.0 years.[10]

The median income for a household in the county was $42,461 and the median income for a family was $51,348. Males had a median income of $43,448 versus $31,087 for females. The per capita income for the county was $23,427. About 13.8% of families and 15.2% of the population were below the poverty line, including 23.6% of those under age 18 and 7.5% of those age 65 or over.[12]

Communities

Cities

Town

Villages

Unincorporated communities

Townships

See also

References

  1. ^ a b "State & County QuickFacts". United States Census Bureau. Retrieved July 7, 2014.
  2. ^ "Find a County". National Association of Counties. Retrieved 2011-06-07.
  3. ^ a b "Population, Housing Units, Area, and Density: 2010 - County". United States Census Bureau. Retrieved 2015-07-12.
  4. ^ a b "Monthly Averages for Havana, Illinois". The Weather Channel. Retrieved 2011-01-27.
  5. ^ "Annual Estimates of the Resident Population for Incorporated Places: April 1, 2010 to July 1, 2014". Retrieved June 4, 2015.
  6. ^ "U.S. Decennial Census". United States Census Bureau. Retrieved July 7, 2014.
  7. ^ "Historical Census Browser". University of Virginia Library. Retrieved July 7, 2014.
  8. ^ "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved July 7, 2014.
  9. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. Retrieved July 7, 2014.
  10. ^ a b c "DP-1 Profile of General Population and Housing Characteristics: 2010 Demographic Profile Data". United States Census Bureau. Retrieved 2015-07-12.
  11. ^ "DP02 SELECTED SOCIAL CHARACTERISTICS IN THE UNITED STATES – 2006-2010 American Community Survey 5-Year Estimates". United States Census Bureau. Retrieved 2015-07-12.
  12. ^ "DP03 SELECTED ECONOMIC CHARACTERISTICS – 2006-2010 American Community Survey 5-Year Estimates". United States Census Bureau. Retrieved 2015-07-12.

40°14′N 89°55′W / 40.24°N 89.91°W / 40.24; -89.91

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