Prairie Capital of the Prairie State
Unity for the Community
Location of Markham in Cook County, Illinois.
Location of Illinois in the United States
Latitude and Longitude:
|• Mayor||Roger Agpawa|
|• Total||5.41 sq mi (14.00 km2)|
|• Land||5.41 sq mi (14.00 km2)|
|• Water||0.00 sq mi (0.00 km2) 0%|
| • Estimate |
|• Density||2,278.26/sq mi (879.66/km2)|
|Down 0.89% from 2000|
|Standard of living ( 2007-2011)|
|• Per capita income||$19,318|
|• Median home value||$120,300|
|Demographics (2010) |
Markham is located at (41.597467, -87.691570).
According to the 2010 census, Markham has a total area of 5.31 square miles (13.75 km2), all land. 
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It is claimed this area was beach 10,000 years ago. After countless ages of geologic swamps, marshes and sloughs, the prairies dominated the landscape with groves of trees, flowers, and wildlife in abundance.
Markham, southwest of the southern tip of Lake Michigan, had been a crossroad for early pioneers. In 1816 a treaty was made with the Ottawa, Chippewa and Potawatomi tribes which ceded a corridor of land located between a point north of the Chicago River and the mouth of the Calumet River to the settlers. The southern boundary, one of two Indian Treaty Boundary Lines, was surveyed along a line from the Kankakee River to Lake Michigan. The line still appears on government maps and now includes a short portion of Interstate 57 near the US 6 interchange northwest of Markham.
The village of Markham was incorporated in 1925 with a population under 300. The village was named for Charles H. Markham, president of the Illinois Central Railroad 1911–1918, 1919–1926. In the mid-1930s, the Croissant Park subdivision was built and increased the population from 349 to 1,388. After World War II, Markham's population doubled to 2,753 residents by 1950. The village developed into a bedroom community as residents sought homes, not industry. An airport developed at 165th Street and Kedzie Avenue was the nearest field outside of Chicago. The airport site was located near what is now the Cook County Sixth Circuit Courthouse. On August 24, 1967, Markham was incorporated as a city.[ citation needed]
In 2017, Roger Agpawa was elected mayor.  He had previously served as fire chief in neighboring Country Club Hills. Having been convicted in 1999 of felony mail fraud in a federal health insurance case, he is one of the first convicted felons to have been elected mayor. Experts state that he would have been ineligible to serve in the highest office in that city, despite being sworn in as mayor in October 2018 after an 18-month legal battle.  
In 1860, a German immigrant named Lawrence Roesner made his way to the southern boundary and settled on land located in the northwest corner of Markham. He brought with him six seedlings from the Black Forest of Germany and planted them along the Indian Boundary Line. This "Lone Pine Tree" was adopted as the official city symbol in 1985. The lone survivor of six pine trees brought from the Black Forest in 1860 died in 1986. The Markham City Council appropriated money to get a replacement tree from the Black Forest, which the Markham Garden Club planted that year.
|U.S. Decennial Census |
As of the 2000 census,  there were 12,620 people, 3,842 households, and 3,119 families residing in the city. The population density was 2,420.6 people per square mile (935.2/km2). There were 4,019 housing units at an average density of 770.9 per square mile (297.8/km2). The racial makeup of the city was 17.30% White, 78.86% African American, 0.16% Native American, 0.59% Asian, 0.02% Pacific Islander, 1.61% from other races, and 1.46% from two or more races. Hispanic or Latino of any race were 3.14% of the population.
There were 3,842 households, out of which 33.9% had children under the age of 18 living with them, 43.6% were married couples living together, 30.3% had a female householder with no husband present, and 18.8% were non-families. 15.3% of all households were made up of individuals, and 6.3% had someone living alone who was 65 years of age or older. The average household size was 3.28 and the average family size was 3.61.
In the city, the population was spread out, with 31.4% under the age of 18, 9.5% from 18 to 24, 25.8% from 25 to 44, 21.4% from 45 to 64, and 11.9% who were 65 years of age or older. The median age was 33 years. For every 100 females, there were 86.7 males. For every 100 females age 18 and over, there were 81.0 males.
The median income for a household in the city was $41,592, and the median income for a family was $44,149. Males had a median income of $37,281 versus $27,723 for females. The per capita income for the city was $14,870. About 13.9% of families and 16.9% of the population were below the poverty line, including 23.9% of those under age 18 and 11.4% of those age 65 or over.
Markham is divided between two congressional districts. Most of the city is in Illinois' 2nd congressional district, consisting of the area south of the Dan Ryan Expressway (I-57) that is bordered on the west by Homan Avenue from 155th to 161st streets, Trumbull Avenue from 161st to 163rd, and Lawndale Avenue from 163rd to 167th; the rest of the city is part of the 1st district.
- 1st Congressional District-Congressman Bobby Rush- Democrat
- 2nd Congressional District-Congressman Robin Kelly- Democrat
In the Illinois State Senate Markham is split by two districts:
In the Illinois House of Representatives Markham is split by two districts:
- 30th District-Representative William Davis- Democrat
- 38th District-Representative Al Riley- Democrat
The Markam Police Department is responsible for public safety and law enforcement.
Anthony "Tony" DeBois, the deputy police chief from 2008 to 2012 and described as an "ally of Markham Mayor David Webb Jr." by the Chicago Tribune, had been the subject to numerous lawsuits alleging brutality and misconduct from 2004 to 2011.   In 2014 he was sentenced to 5 years in federal prison for raping a woman under arrest in 2010 and lying about it to the FBI in 2012.  
There are approximately 2,500 acres (10 km2) of virgin and restored prairie land located within the boundary of Markham. There are four prairies known as "Dropseed", "Sundrop", "Paintbrush" and "Gensburg". The prairie is under the supervision of Northeastern Illinois University and The Nature Conservancy. The Gensburg-Markham Prairie portion has been designated a National Natural Landmark. The prairies continue to grow and flourish with the help of the Friends of the Indian Boundary Prairies. 
- Randy Daniels, raised in Markham, secretary of state in New York, deputy mayor of New York City
- Floyd Fields, raised in Markham, retired safety for San Diego Chargers
- Cliff Floyd, raised in Markham, outfielder for San Diego Padres
- Rodney Harrison, native of Markham, retired safety for New England Patriots and San Diego Chargers
- Curtis Mayfield, solo artist and member of soul group the Impressions, once lived in Markham[ citation needed]
- Denny McLain, Major League Baseball player and Cy Young Award-winning pitcher 
- Corey McPherrin, raised in Markham, news anchor and former sportscaster for Chicago FOX News station
- Kid Sister, hip-hop artist, raised in Markham, "First Lady of Markham"
- Christopher "Tricky" Stewart, hip-hop artist and producer, born in Markham
- "2019 U.S. Gazetteer Files". United States Census Bureau. Retrieved July 14, 2020.
- "Population and Housing Unit Estimates". United States Census Bureau. May 24, 2020. Retrieved May 27, 2020.
- "Profile of General Population and Housing Characteristics: 2010 Demographic Profile Data (DP-1): Markham city, Illinois". U.S. Census Bureau, American Factfinder. Archived from the original on February 12, 2020. Retrieved February 12, 2013.
- "US Gazetteer files: 2010, 2000, and 1990". United States Census Bureau. 2011-02-12. Retrieved 2011-04-23.
- "G001 - Geographic Identifiers - 2010 Census Summary File 1". United States Census Bureau. Archived from the original on 2020-02-13. Retrieved 2015-12-27.
- Slowik, Ted (October 4, 2018). "After 18-month legal battle, convicted felon Roger Agpawa sworn in as Markham mayor". Daily Southtown.
- "Census of Population and Housing". Census.gov. Retrieved June 4, 2015.
- "U.S. Census website". United States Census Bureau. Retrieved 2008-01-31.
- "Profile of General Demographic Characteristics, Markham, Illinois" (PDF). Archived from the original (PDF) on 2007-12-03. Retrieved 2007-07-11. (38.9 KiB). U.S. Census Bureau. Accessed 2007-07-11.
- Schmadeke, Steve (2010-08-13). "Markham deputy chief no stranger to lawsuits". Archived from the original on 2016-03-05. Retrieved 2019-07-11.
- "Former Markham Cop Sentenced to 5 Years for Lying to FBI". nbcchicago.com. Chicago. 2014-04-09. Archived from the original on 2016-06-17. Retrieved 2019-07-11.
- Schmadeke, Steve (2014-04-09). "5 years for ex-Markham deputy police chief who had sex with detainee". Archived from the original on 2019-07-12. Retrieved 2019-07-11.
- "Nature Conservancy: Indian Boundary Prairies". The Nature Conservancy. Retrieved 15 December 2012.
- " WELCOME TO POSEN-ROBBINS SCHOOL DISTRICT 143.5 Archived 2013-05-24 at the Wayback Machine." Posen-Robbins School District 143½. Retrieved on February 24, 2013.
- " ." Bremen High School School Boundaries Retrieved on October 29, 2017.
- Armour, Mark. "The Baseball Biography Project: Denny McLain". Society for American Baseball Research. Retrieved 20 December 2011.