Hennepin | |
|---|---|
 | |
 Location of Hennepin in Putnam County, Illinois. | |
| Coordinates:41°14′53″N89°19′30″W / 41.24806°N 89.32500°W /41.24806; -89.32500[1] | |
| Country | United States |
| State | Illinois |
| County | Putnam |
| Township | Hennepin |
| Incorporated | February 13, 1837 |
| Area | |
• Total | 5.66 sq mi (14.66 km2) |
| • Land | 5.31 sq mi (13.74 km2) |
| • Water | 0.36 sq mi (0.92 km2) |
| Elevation | 528 ft (161 m) |
| Population (2020) | |
• Total | 769 |
| • Density | 144.9/sq mi (55.95/km2) |
| Time zone | UTC-6 (CST) |
| • Summer (DST) | UTC-5 (CDT) |
| ZIP codes | 61327 |
| FIPS code | 17-34098 |
| GNIS feature ID | 2398489[1] |
| Website | http://www.villageofhennepin.com |
Hennepin is a village located on theIllinois River inPutnam County, Illinois,United States. The population was 757 in 2010, an increase of 50 since the 2000 census. It is thecounty seat of and the second largest village inPutnam County.[3]
Hennepin is part of theOttawaMicropolitan Statistical Area.
The Village of Hennepin was named for the explorer,Louis Hennepin.[4]
ThePutnam County Courthouse, in Hennepin, was built in 1837, and is the oldest county courthouse inIllinois still serving its original purpose.[5]Abraham Lincoln visited the courthouse, including when he campaigned for aCongressional seat in September 1845. ThePutnam County Courthouse is listed on theNational Register of Historic Places.
| Climate data for Hennepin, Illinois (1991–2020) | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Month | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec | Year |
| Mean daily maximum °F (°C) | 32.3 (0.2) | 37.1 (2.8) | 50.1 (10.1) | 63.5 (17.5) | 73.7 (23.2) | 81.7 (27.6) | 84.5 (29.2) | 82.9 (28.3) | 77.1 (25.1) | 65.2 (18.4) | 49.9 (9.9) | 36.7 (2.6) | 61.2 (16.2) |
| Daily mean °F (°C) | 24.6 (−4.1) | 28.6 (−1.9) | 40.1 (4.5) | 52.0 (11.1) | 62.5 (16.9) | 71.6 (22.0) | 74.5 (23.6) | 72.7 (22.6) | 65.8 (18.8) | 54.1 (12.3) | 41.1 (5.1) | 29.3 (−1.5) | 51.4 (10.8) |
| Mean daily minimum °F (°C) | 16.8 (−8.4) | 20.1 (−6.6) | 30.1 (−1.1) | 40.5 (4.7) | 51.3 (10.7) | 61.4 (16.3) | 64.5 (18.1) | 62.4 (16.9) | 54.5 (12.5) | 43.0 (6.1) | 32.3 (0.2) | 21.8 (−5.7) | 41.6 (5.3) |
| Averageprecipitation inches (mm) | 1.95 (50) | 1.80 (46) | 2.46 (62) | 3.85 (98) | 4.76 (121) | 4.55 (116) | 3.89 (99) | 3.77 (96) | 3.45 (88) | 3.31 (84) | 2.60 (66) | 2.19 (56) | 38.58 (982) |
| Source: NOAA[6] | |||||||||||||
| Census | Pop. | Note | %± |
|---|---|---|---|
| 1880 | 623 | — | |
| 1890 | 574 | −7.9% | |
| 1900 | 523 | −8.9% | |
| 1910 | 451 | −13.8% | |
| 1920 | 377 | −16.4% | |
| 1930 | 312 | −17.2% | |
| 1940 | 396 | 26.9% | |
| 1950 | 312 | −21.2% | |
| 1960 | 391 | 25.3% | |
| 1970 | 535 | 36.8% | |
| 1980 | 716 | 33.8% | |
| 1990 | 669 | −6.6% | |
| 2000 | 707 | 5.7% | |
| 2010 | 757 | 7.1% | |
| 2020 | 769 | 1.6% | |
| U.S. Decennial Census[7] | |||
As of thecensus[8] of 2000, there were 707 people, 304 households, and 206 families residing in the village. The population density was 135.4 inhabitants per square mile (52.3/km2). There were 334 housing units at an average density of 64.0 per square mile (24.7/km2). The racial makeup of the village was 97.17%White, 1.13%African American, 0.28%Native American, 0.71%Asian, 0.57% fromother races, and 0.14% from two or more races.Hispanic orLatino of any race were 3.82% of the population.
There were 304 households, out of which 26.6% had children under the age of 18 living with them, 59.2% weremarried couples living together, 5.6% had a female householder with no husband present, and 32.2% were non-families. 30.3% of all households were made up of individuals, and 16.1% had someone living alone who was 65 years of age or older. The average household size was 2.32 and the average family size was 2.87.
In the village, the population was spread out, with 20.8% under the age of 18, 9.2% from 18 to 24, 24.6% from 25 to 44, 27.0% from 45 to 64, and 18.4% who were 65 years of age or older. The median age was 42 years. For every 100 females, there were 96.4 males. For every 100 females age 18 and over, there were 92.4 males.
The median income for a household in the village was $46,827, and the median income for a family was $56,111. Males had a median income of $48,500 versus $19,231 for females. Theper capita income for the village was $23,981. About 2.6% of families and 2.9% of the population were below thepoverty line, including 5.6% of those under age 18 and 2.9% of those age 65 or over.
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Hennepin's location on theIllinois River, along with its proximity to aClass I railroad (Norfolk Southern Railway), and multiple inter and intrastate highway routes (Interstate 80,Interstate 39,Illinois Route 180,Illinois Route 89,Illinois Route 71,Illinois Route 26, andIllinois Route 6) has, historically, made it a transportation hub attracting a variety of both small businesses and large industries.
J&L Steel, a cold roll steel mill built byJones and Laughlin Steel Company on Hennepin's northern boundary, began operations in 1967 and employed 600 workers at height of production. The mill was later acquired byLing-Temco-Vought, at which time it became known as LTV Steel.Ling-Temco-Vought's bankruptcy led to acquisition of the mill byInternational Steel Group (ISG). As a result of additional acquisitions followed by a merger,Putnam County's largest employer was absorbed byArcelorMittal. Long and arduous union lobbying and protests ultimately proved futile andArcelorMittal ceased production at the mill in March 2009. The mill's equipment was dismantled, sold, or shipped and on June 22, 2017, the vast plant was imploded. As of 2020, the 800 acres once occupied by the steel mill remain mostly vacant, though infrastructure has been retained in anticipation that another industry might one day purchase and redevelop the property.
Hennepin Power Station, a coal-fired power plant nearDonnelley Wildlife Area on the western edge of town, was retired November 1, 2019.
There are alsoCargill,ADM, and CGB elevators throughout the area.
Marquis Energy opened a 100 million gallon/year ICM/Fagenethanol plant just north of town in April 2008.
Edward Pulsifer House, museum and headquarters of the Putnam County Historical Society
Putnam County Historical Society's Agriculture Museum
Putnam County Courthouse (Illinois)
TheDixon Waterfowl Refuge, a privately maintained wetland, is located two miles south of Hennepin.
It is in thePutnam County Community Unit School District 535.[9]
Municipalities and communities ofPutnam County, Illinois,United States | ||
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| Villages |  | |
| Townships | ||
| Unincorporated communities | ||
| Footnotes | ‡This populated place also has portions in an adjacent county or counties | |
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| Other | |
