Putnam County
Putnam County Courthouse, Hennepin
Map of Illinois highlighting Putnam County
Location within the U.S. state of Illinois
Map of the United States highlighting Illinois
Illinois's location within the U.S.
Coordinates: 41°12′N 89°17′W / 41.2°N 89.28°W / 41.2; -89.28
Country United States
State Illinois
Founded1825
Named forIsrael Putnam
SeatHennepin
Largest villageGranville
Area
 • Total172 sq mi (450 km2)
 • Land160 sq mi (400 km2)
 • Water12 sq mi (30 km2)  7.0%
Population
 (2010)
 • Total6,006
 • Estimate 
(2018)
5,740
 • Density35/sq mi (13/km2)
Time zoneUTC−6 (Central)
 • Summer (DST)UTC−5 (CDT)
Congressional district16th
Websitewww.co.putnam.il.us

Putnam County is the least extensive county in the U.S. state of Illinois. According to the 2010 census, it had a population of 6,006.[1] The county seat is Hennepin.[2] The county was formed in 1825 out of Fulton County and named after Israel Putnam,[3] who was a general in the American Revolution. Putnam County is part of the Ottawa, IL Micropolitan Statistical Area.

Geography

According to the U.S. Census Bureau, the county has a total area of 172 square miles (450 km2), of which 160 square miles (410 km2) is land and 12 square miles (31 km2) (7.0%) is water.[4] It is the smallest county in Illinois by area.

Climate and weather

Hennepin, Illinois
Climate chart (explanation)
J
F
M
A
M
J
J
A
S
O
N
D
 
 
1.1
 
 
30
13
 
 
1.2
 
 
36
19
 
 
2.2
 
 
48
29
 
 
3.2
 
 
62
39
 
 
3.6
 
 
73
50
 
 
4.2
 
 
83
59
 
 
3.8
 
 
86
64
 
 
4.3
 
 
84
62
 
 
3.6
 
 
77
53
 
 
2.7
 
 
65
41
 
 
2.5
 
 
49
31
 
 
2
 
 
36
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Average max. and min. temperatures in °F
Precipitation totals in inches
Source: The Weather Channel[5]

In recent years, average temperatures in the county seat of Hennepin have ranged from a low of 13 °F (−11 °C) in January to a high of 86 °F (30 °C) in July, although a record low of −30 °F (−34 °C) was recorded in January 1999 and a record high of 104 °F (40 °C) was recorded in June 1988. Average monthly precipitation ranged from 1.14 inches (29 mm) in January to 4.32 inches (110 mm) in August.[5]

Major highways

Adjacent counties

Demographics

Historical population
Census Pop.
18402,131
18503,92484.1%
18605,58742.4%
18706,28012.4%
18805,554−11.6%
18904,730−14.8%
19004,7460.3%
19107,56159.3%
19207,5790.2%
19305,235−30.9%
19405,2891.0%
19504,746−10.3%
19604,570−3.7%
19705,0079.6%
19806,08521.5%
19905,730−5.8%
20006,0866.2%
20106,006−1.3%
2018 (est.)5,740[6]−4.4%
U.S. Decennial Census[7]
1790-1960[8] 1900-1990[9]
1990-2000[10] 2010-2017[1]

As of the 2010 census, there were 6,006 people, 2,509 households, and 1,734 families residing in the county.[11] The population density was 37.5 inhabitants per square mile (14.5/km2). There were 3,074 housing units at an average density of 19.2 per square mile (7.4/km2).[4] The racial makeup of the county was 96.6% white, 0.5% black or African American, 0.2% Asian, 0.1% American Indian, 1.4% from other races, and 1.1% from two or more races. Those of Hispanic or Latino origin made up 4.2% of the population.[11] In terms of ancestry, 46.5% were German, 16.7% were Irish, 16.3% were Italian, 10.9% were Polish, 10.1% were English, 5.1% were Swedish, and 3.5% were American.[12]

Of the 2,509 households, 27.7% had children under the age of 18 living with them, 57.6% were married couples living together, 7.2% had a female householder with no husband present, 30.9% were non-families, and 26.0% of all households were made up of individuals. The average household size was 2.39 and the average family size was 2.85. The median age was 45.2 years.[11]

The median income for a household in the county was $56,458 and the median income for a family was $68,875. Males had a median income of $50,205 versus $31,886 for females. The per capita income for the county was $27,004. About 6.2% of families and 10.9% of the population were below the poverty line, including 21.8% of those under age 18 and 5.4% of those age 65 or over.[13]

Communities

Villages

Unincorporated communities

Townships

Putnam County is divided into four townships:

Politics

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Prior to 1988, Putnam County was a Republican Party stronghold in presidential elections, backing the Republican candidate in all but three elections from 1892 to 1984. From 1988 to 2012, the county consistently backed Democratic Party presidential candidates, but none fared better than Illinois resident Barack Obama's 56.9% in 2008. However, he failed to win a majority of the county's votes four years later despite winning it overall in his 2012 reelection bid. This foreshadowed what was to come in the 2016 election, as the county swung 21.8 points Republican to back Donald Trump over Illinois-born Hillary Clinton by a margin of 19.9%.[14]

United States presidential election results for Putnam County, Illinois[15]
Year Republican Democratic Third party
No.  % No.  % No.  %
2020 1,993 58.70% 1,338 39.41% 64 1.89%
2016 1,767 56.78% 1,147 36.86% 198 6.36%
2012 1,502 47.79% 1,559 49.60% 82 2.61%
2008 1,378 41.23% 1,900 56.85% 64 1.92%
2004 1,623 48.42% 1,704 50.84% 25 0.75%
2000 1,437 45.20% 1,657 52.12% 85 2.67%
1996 987 35.71% 1,425 51.56% 352 12.74%
1992 969 29.29% 1,574 47.58% 765 23.13%
1988 1,516 48.30% 1,601 51.00% 22 0.70%
1984 1,912 56.02% 1,487 43.57% 14 0.41%
1980 1,959 57.38% 1,158 33.92% 297 8.70%
1976 1,572 53.13% 1,344 45.42% 43 1.45%
1972 1,665 59.74% 1,112 39.90% 10 0.36%
1968 1,351 53.93% 988 39.44% 166 6.63%
1964 1,131 45.42% 1,359 54.58% 0 0.00%
1960 1,457 55.63% 1,160 44.29% 2 0.08%
1956 1,724 65.28% 913 34.57% 4 0.15%
1952 1,691 62.56% 1,010 37.37% 2 0.07%
1948 1,405 60.15% 905 38.74% 26 1.11%
1944 1,521 63.48% 865 36.10% 10 0.42%
1940 1,778 59.56% 1,195 40.03% 12 0.40%
1936 1,435 49.47% 1,437 49.53% 29 1.00%
1932 1,050 39.61% 1,554 58.62% 47 1.77%
1928 1,387 61.10% 869 38.28% 14 0.62%
1924 1,364 61.50% 260 11.72% 594 26.78%
1920 1,623 74.04% 362 16.51% 207 9.44%
1916 1,444 62.48% 785 33.97% 82 3.55%
1912 583 39.88% 424 29.00% 455 31.12%
1908 834 62.99% 413 31.19% 77 5.82%
1904 753 65.03% 355 30.66% 50 4.32%
1900 738 60.29% 450 36.76% 36 2.94%
1896 706 58.06% 479 39.39% 31 2.55%
1892 561 49.04% 514 44.93% 69 6.03%


See also

References

  1. ^ a b "State & County QuickFacts". United States Census Bureau. Archived from the original on September 5, 2015. Retrieved July 8, 2014.
  2. ^ "Find a County". National Association of Counties. Retrieved June 7, 2011.
  3. ^ "About Putnam County". Putnam County, Illinois. Retrieved July 27, 2012.
  4. ^ a b "Population, Housing Units, Area, and Density: 2010 - County". United States Census Bureau. Archived from the original on February 12, 2020. Retrieved July 12, 2015.
  5. ^ a b "Monthly Averages for Hennepin, Illinois". The Weather Channel. Retrieved January 27, 2011.
  6. ^ "Population and Housing Unit Estimates". Retrieved November 2, 2019.
  7. ^ "U.S. Decennial Census". United States Census Bureau. Retrieved July 8, 2014.
  8. ^ "Historical Census Browser". University of Virginia Library. Retrieved July 8, 2014.
  9. ^ "Population of Counties by Decennial Census: 1900 to 1990". United States Census Bureau. Retrieved July 8, 2014.
  10. ^ "Census 2000 PHC-T-4. Ranking Tables for Counties: 1990 and 2000" (PDF). United States Census Bureau. Retrieved July 8, 2014.
  11. ^ a b c "DP-1 Profile of General Population and Housing Characteristics: 2010 Demographic Profile Data". United States Census Bureau. Archived from the original on February 13, 2020. Retrieved July 12, 2015.
  12. ^ "DP02 SELECTED SOCIAL CHARACTERISTICS IN THE UNITED STATES – 2006-2010 American Community Survey 5-Year Estimates". United States Census Bureau. Archived from the original on February 13, 2020. Retrieved July 12, 2015.
  13. ^ "DP03 SELECTED ECONOMIC CHARACTERISTICS – 2006-2010 American Community Survey 5-Year Estimates". United States Census Bureau. Archived from the original on February 13, 2020. Retrieved July 12, 2015.
  14. ^ "Here's a map of the US counties that flipped to Trump from Democrats". www.cnbc.com. Retrieved October 19, 2019.
  15. ^ Leip, David. "Dave Leip's Atlas of U.S. Presidential Elections". uselectionatlas.org. Retrieved November 12, 2018.

Coordinates: 41°12′N 89°17′W / 41.20°N 89.28°W / 41.20; -89.28