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Macoupin County, Illinois facts for kids

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Macoupin County
Macoupin County Courthouse in Carlinville
Macoupin County Courthouse in Carlinville
Map of Illinois highlighting Macoupin County
Location within the U.S. state of Illinois
Map of the United States highlighting Illinois
Illinois's location within the U.S.
Country  United States
State  Illinois
Founded 1829
Named for Macoupin Creek
Seat Carlinville
Largest city Carlinville
 • Total 868 sq mi (2,250 km2)
 • Land 863 sq mi (2,240 km2)
 • Water 4.7 sq mi (12 km2)  0.5%
 • Total 47,765
 • Estimate 
 • Density 55.03/sq mi (21.247/km2)
Time zone UTC−6 (Central)
 • Summer (DST) UTC−5 (CDT)
Congressional district 13th

Macoupin County is located in the U.S. state of Illinois. According to the 2010 census, it had a population of 47,765. The county seat is Carlinville.

The primary industry is agriculture, consisting of crops of corn (maize), soybeans, and some wheat.


The region was previously inhabited by Illinoisan Indians when the first white settlers arrived. Indeed, macoupin is the Miami-Illinois term for the American lotus, Nelumbo lutea. None of the native Indians remain, although some descendants of the earliest European settlers claim partial ancestry. The first European contact was by French explorers in the seventeenth century, travelling southward down the major rivers. The main European settlement was from the southwest, as people moved inland from the established transportation route of the Mississippi River.

Macoupin County Illinois 1829
Macoupin County at the time of its creation in 1829

Macoupin County was established on January 17, 1829. It was formed out of Greene and Madison Counties and was named after Macoupin Creek, which runs near Carlinville and meanders southwest to the Illinois River. The economy was based on subsistence agriculture, and communication was to the southwest.

In the middle 19th century, Illinois developed and changed rapidly. The greatest change was in the building of railroads, and Macoupin County was on the rail and road transportation link between St. Louis and the still-young metropolis of Chicago. The county lies midway between St. Louis and the relocated state capital of Springfield. The economy was still based entirely on agriculture, but there was now easier access to markets. Towns were small, sparsely distributed, and any new communities were founded along the railroad lines that provided transportation. Culturally, the county remained closer to its historical ties with St. Louis than to more northerly areas within the state.

Agriculture remained a mainstay of the economy, but this was joined by coal mining, an industry that partially changed the complexion of the county. With coal underlying the entire region, the most economical development was to place mines alongside the railroad tracks (for transportation of coal), and located in or near already-existing towns. By the twentieth century, there were mines in many towns, all of them with substantial populations of foreign-born miners from everywhere in Europe.

During the twentieth century, agriculture and coal mining remained the mainstays of the county's economy, and the county's fortunes rose and fell with them. Farming was still family based. Macoupin County was often at the center of major labor disputes between mine owners and miners, and was a hotbed of union activity. The county had previously played a major role in violent 1890s disputes that brought unwanted national attention, was at center stage when the United Mine Workers rose to power, and was again prominent during the internecine war between the UMW and the Progressive Miners of America of the 1930s.

Agriculture remained as the county's prime economic activity, but farming became a large-scale corporate enterprise, with small family farms rapidly disappearing. Coal mining decreased, and has almost disappeared entirely. Buildings and structures related to coal mining were torn down as they wasted away, so that there is now little to see of this once-major industry.

Towns were (and still are) characterized either by a midwestern town square layout, or by a main street layout. In the former, a central city block may be a small park with a gazebo, and with the small businesses of the town surrounding it. In the latter, a single street will have the small businesses of the town lining either side of it. Carlinville has a city square layout, with the main county building occupying the central city block. This building houses all the offices of the county. Typically, churches of the various denominations will lie within two or three blocks of the town square, or sometimes will lie mainly along a single street near the town's center.

With modern roads easily accessible, some towns in the northern part of the county became virtual bedroom communities as people commuted to Springfield to work and shop, hastening the decline of small businesses in the towns. The same effect was felt in the southernmost part of the county, and in 2005, the U.S. Census Bureau included the county in the St. Louis Metropolitan Statistical Area due to increased commuting patterns and employment in St. Louis and the Metro-East.


According to the U.S. Census Bureau, the county has a total area of 868 square miles (2,250 km2), of which 863 square miles (2,240 km2) is land and 4.7 square miles (12 km2) (0.5%) is water.

Climate and weather

Weather chart for Carlinville, Illinois
temperatures in °F
precipitation totals in inches
source: The Weather Channel

In recent years, average temperatures in the county seat of Carlinville have ranged from a low of 17 °F (−8 °C) in January to a high of 87 °F (31 °C) in July, although a record low of −23 °F (−31 °C) was recorded in February 1905 and a record high of 113 °F (45 °C) was recorded in July 1954. Average monthly precipitation ranged from 1.95 inches (50 mm) in February to 4.25 inches (108 mm) in May.

Major highways

  • I-55.svg Interstate 55
  • Illinois 4.svg Illinois Route 4
  • Illinois 16.svg Illinois Route 16
  • Illinois 138.svg Illinois Route 138
  • Illinois 108.svg Illinois Route 108
  • Illinois 111.svg Illinois Route 111
  • Illinois 159.svg Illinois Route 159
  • Illinois 267.svg Illinois Route 267

Adjacent counties


Historical population
Census Pop.
1830 1,990
1840 7,826 293.3%
1850 12,355 57.9%
1860 24,602 99.1%
1870 32,726 33.0%
1880 37,692 15.2%
1890 40,352 7.1%
1900 42,256 4.7%
1910 50,685 19.9%
1920 57,274 13.0%
1930 48,703 −15.0%
1940 46,304 −4.9%
1950 44,210 −4.5%
1960 43,524 −1.6%
1970 44,557 2.4%
1980 49,384 10.8%
1990 47,679 −3.5%
2000 49,019 2.8%
2010 47,765 −2.6%
2018 (est.) 45,313 −5.1%
U.S. Decennial Census
1790-1960 1900-1990
1990-2000 2010-2013

As of the 2010 United States Census, there were 47,765 people, 19,381 households, and 13,224 families residing in the county. The population density was 55.4 inhabitants per square mile (21.4/km2). There were 21,584 housing units at an average density of 25.0 per square mile (9.7/km2). The racial makeup of the county was 97.6% white, 0.8% black or African American, 0.3% Asian, 0.3% American Indian, 0.2% from other races, and 0.9% from two or more races. Those of Hispanic or Latino origin made up 0.9% of the population. In terms of ancestry, 35.8% were German, 16.2% were Irish, 13.9% were English, 9.5% were American, and 8.0% were Italian.

Of the 19,381 households, 30.2% had children under the age of 18 living with them, 53.5% were married couples living together, 9.8% had a female householder with no husband present, 31.8% were non-families, and 27.0% of all households were made up of individuals. The average household size was 2.42 and the average family size was 2.90. The median age was 41.7 years.

The median income for a household in the county was $47,178 and the median income for a family was $59,700. Males had a median income of $48,878 versus $30,748 for females. The per capita income for the county was $23,222. About 9.7% of families and 12.0% of the population were below the poverty line, including 17.4% of those under age 18 and 5.5% of those age 65 or over.





Unincorporated communities


Macoupin County is divided into twenty-six townships:
Map of Macoupin County, Illinois
  • Barr
  • Bird
  • Brighton
  • Brushy Mound
  • Bunker Hill
  • Cahokia
  • Carlinville
  • Chesterfield
  • Dorchester
  • Gillespie
  • Girard
  • Hillyard
  • Honey Point
  • Mount Olive
  • Nilwood
  • North Otter
  • North Palmyra
  • Polk
  • Scottville
  • Shaws Point
  • Shipman
  • South Otter
  • South Palmyra
  • Staunton
  • Virden
  • Western Mound

See also

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