| Adams County, Idaho, Adams County, Colorado | |
| Adams County, Indiana, Adams County, Iowa |
| Adams County, Illinois | |
Location in the state of Illinois |
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Illinois's location in the U.S. |
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| Founded | 1825 |
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| Seat | Quincy |
| Largest city | Quincy |
| Area - Total - Land - Water |
871.34 sq mi (2,257 km²) 855.20 sq mi (2,215 km²) 16.14 sq mi (42 km²), 1.85% |
| Population - (2010) - Density |
67,103 80/sq mi (31/km²) |
| Time zone | Central: UTC-6/-5 |
| Website | www.co.adams.il.us |
Adams County is the westernmost county of the U.S. state of Illinois. According to the 2010 census, it has a population of 67,103, which is a decrease of 1.7% from 68,277 in 2000.[1] Its county seat is Quincy.[2]
Adams County is part of the Quincy, IL–MO Micropolitan Statistical Area.
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Contents
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According to the 2010 census, the county has a total area of 871.34 square miles (2,256.8 km2), of which 855.20 square miles (2,215.0 km2) (or 98.15%) is land and 16.14 square miles (41.8 km2) (or 1.85%) is water.[3]
Adams County was formed in 1825 out of Pike County. Its name is in honor of the sixth President of the United States, John Quincy Adams.
When it was created, Hancock County was temporarily attached to Adams until it could organize a county government.[4]
| Historical populations | |||
|---|---|---|---|
| Census | Pop. | %± | |
| 1900 | 67,058 |
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| 1910 | 64,588 | −3.7% | |
| 1920 | 62,188 | −3.7% | |
| 1930 | 62,784 | 1.0% | |
| 1940 | 65,229 | 3.9% | |
| 1950 | 64,690 | −0.8% | |
| 1960 | 68,467 | 5.8% | |
| 1970 | 70,861 | 3.5% | |
| 1980 | 71,622 | 1.1% | |
| 1990 | 66,090 | −7.7% | |
| 2000 | 68,277 | 3.3% | |
| IL Counties 1900-1990 | |||
As of the census[5] of 2000, there were 68,277 people, 26,860 households, and 17,996 families residing in the county. The population density was 80 people per square mile (31/km²). There were 29,386 housing units at an average density of 34 per square mile (13/km²). The racial makeup of the county was 95.10% White, 3.07% Black or African American, 0.16% Native American, 0.40% Asian, 0.01% Pacific Islander, 0.31% from other races, and 0.95% from two or more races. 0.83% of the population were Hispanic or Latino of any race. 48.4% were of German, 22.4% English and 8.6% Irish ancestry according to Census 2000. 97.2% spoke English and 1.3% Spanish as their first language.
There were 26,860 households out of which 31.10% had children under the age of 18 living with them, 54.20% were married couples living together, 9.80% had a female householder with no husband present, and 33.00% were non-families. 28.50% of all households were made up of individuals and 13.20% had someone living alone who was 65 years of age or older. The average household size was 2.44 and the average family size was 3.00.
In the county the population was spread out with 24.90% under the age of 18, 8.80% from 18 to 24, 26.40% from 25 to 44, 22.40% from 45 to 64, and 17.60% who were 65 years of age or older. The median age was 38 years. For every 100 females there were 92.70 males. For every 100 females age 18 and over, there were 89.70 males.
The median income for a household in the county was $34,784, and the median income for a family was $44,133. Males had a median income of $31,171 versus $21,083 for females. The per capita income for the county was $17,894. About 7.40% of families and 10.00% of the population were below the poverty line, including 12.00% of those under age 18 and 8.90% of those age 65 or over.
Adams County, positioned in a primarily rural section of Illinois is culturally isolated from other regions in the state, and therefore is more conservative than most of the state's counties. Quincy, the county seat, holds a high number of social conservative catholics[6] and likewise is the home to the campus of Quincy University, a private catholic liberal arts college, and the Western Catholic Union.
In the 2008 Presidential election, the county supported Republican candidate John McCain 61-38% over the state's favorite son, Barack Obama.[7]
Presidential Election Results (Adams County, IL):1960–present (U.S. winner is represented by (W)), IL winner is represented by (I)), Adams County winner is represented by italicized number of votes received in the county
| Year | Democrat | Republican | Third party |
|---|---|---|---|
| 2008 | (W)(I) Obama/Biden 38.6% 11,794 | McCain/Palin 60.6% 18,711 | |
| 2004[8] | (I) Kerry/Edwards 33% 10,511 | (W) G.W. Bush/Cheney 66% 20,834 | |
| 2000[9] | (I) Gore/Lieberman 40.5% 12,197 | (W) G.W. Bush/Cheney 57.6% 17,331 | Nader 1.2% 371 |
| 1996[10] | (W)(I) Clinton/Gore 39.9% 11,336 | Dole/Kemp 48.7% 13,836 | Perot 10.8% 3,069 |
| 1992[10] | (W)(I) Clinton/Gore 37.2% 11,748 | G. Bush/Quayle 42.8% 13,529 | Perot 19.5% 6,157 |
| 1988[10] | Dukakis/Bentsen 46.3% 13,768 | (W)(I) G. Bush/Quayle 53.3% 15,831 | |
| 1984[10] | Mondale/Ferraro 33.7% 10,336 | (W)(I) Reagan/Mondale 66.0% 20,225 | |
| 1980[10] | Carter/Mondale 33.2% 10,606 | (W)(I) Reagan/G. Bush 62.2% 19,842 | Anderson 3.8% 1,202 |
| 1976[10] | (W) Carter/Mondale 39.1% 11,926 | (I) Ford/Dole 59.7% 18,189 | |
| 1972[10] | McGovern/Shriver 30.3% 9,055 | (W)(I) Nixon/Agnew 69.5% 20,731 | |
| 1968[10] | Humphrey/Muskie 35.9% 11,521 | (W)(I) Nixon/Agnew 54.3% 17,444 | Wallace 9.7% 3,115 |
| 1964[10] | (W)(I) L. Johnson/Humphrey 56.7% 18,321 | Goldwater/Miller 43.3% 13,993 | |
| 1960[10] | (W)(I) Kennedy/L. Johnson 44.2% 14,827 | Nixon/Lodge 55.7% 18,674 |
Adams County is divided into twenty-three townships:
| Quincy, Illinois | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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In recent years, average temperatures in the county seat of Quincy have ranged from a low of 16 °F (−9 °C) in January to a high of 88 °F (31 °C) in July, although a record low of −21 °F (−29 °C) was recorded in January 1979 and a record high of 105 °F (41 °C) was recorded in July 2005. Average monthly precipitation ranged from 1.36 inches (35 mm) in January to 4.61 inches (117 mm) in May.[11]
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Hancock County | ![]() |
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| Marion County, Missouri and Lewis County, Missouri | Brown County and Schuyler County | |||
| Pike County |
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Coordinates: 39°59′N 91°11′W / 39.99°N 91.19°W
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