Editing Cairo, Illinois (section)

==Demographics==
{{US Census population
|1850= 242
|1860= 2188
|1870= 6267
|1880= 9011
|1890= 10324
|1900= 12566
|1910= 14548
|1920= 15203
|1930= 13532
|1940= 14407
|1950= 12123
|1960= 9348
|1970= 6277
|1980= 5931
|1990= 4846
|2000= 3632
|2010= 2831
|2020= 1733
|footnote=[https://www.census.gov/programs-surveys/decennial-census.html Decennial US Census]
}}

===2020 census===
''Note: the US Census treats Hispanic/Latino as an ethnic category. This table excludes Latinos from the racial categories and assigns them to a separate category. Hispanics/Latinos can be of any race.''
{| class="wikitable"
|+'''Cairo racial composition'''<br /> (''NH = Non-Hispanic'')<ref>{{Cite web |title=Explore Census Data |url=https://data.census.gov/cedsci/table?g=1600000US1710383&tid=DECENNIALPL2020.P2 |access-date=2022-03-07 |website=data.census.gov}}</ref>
!Race
!Number
!Percentage
|-
|[[Non-Hispanic or Latino whites|White]] (NH)
|434
|25.04%
|-
|[[Non-Hispanic or Latino African Americans|Black or African American]] (NH)
|1,193
|68.84%
|-
|[[Native Americans in the United States|Native American]] or [[Alaska Native]] (NH)
|5
|0.29%
|-
|Some Other Race (NH)
|5
|0.29%
|-
|[[Multiracial Americans|Mixed/Multi-Racial]] (NH)
|76
|4.39%
|-
|[[Hispanic and Latino Americans|Hispanic or Latino]]
|20
|1.15%
|-
|'''Total'''
|'''1,733'''
|
|}
As of the [[2020 United States census|2020 census]]<ref>{{Cite web |title=Explore Census Data |url=https://data.census.gov/cedsci/profile?g=1600000US1710383 |access-date=2022-06-28 |website=data.census.gov}}</ref> there were 1,733 people, 828 households, and 377 families residing in the city. The population density was {{Convert|190.29|PD/sqmi|PD/km2}}. There were 1,036 housing units at an average density of {{Convert|113.76|/sqmi|/km2}}. The racial makeup of the city was 25.33% [[White (U.S. Census)|White]], 68.96% [[African American (U.S. Census)|African American]], 0.40% [[Native American (U.S. Census)|Native American]], 0.63% from [[Race (United States Census)|other races]], and 4.67% from two or more races. [[Hispanic (U.S. Census)|Hispanic]] or [[Latino (U.S. Census)|Latino]] of any race were 1.15% of the population.

There were 828 households, out of which 18.0% had children under the age of 18 living with them, 23.07% were married couples living together, 20.29% had a female householder with no husband present, and 54.47% were non-families. 52.29% of all households were made up of individuals, and 23.55% had someone living alone who was 65 years of age or older. The average household size was 3.42 and the average family size was 2.16.

The city's age distribution consisted of 21.7% under the age of 18, 9.3% from 18 to 24, 16.9% from 25 to 44, 28.8% from 45 to 64, and 23.3% who were 65 years of age or older. The median age was 47.4 years. For every 100 females, there were 87.1 males. For every 100 females age 18 and over, there were 94.5 males.

The median income for a household in the city was $27,661, and the median income for a family was $31,280. Males had a median income of $14,464 versus $21,188 for females. The [[per capita income]] for the city was $19,661. About 32.9% of families and 36.2% of the population were below the [[poverty line]], including 72.1% of those under age 18 and 14.2% of those age 65 or over.

===2010 census===
As of the census of 2010, there were 2,831 people, 1,268 households, and 677 families residing in the city. There were 1,599 housing units. The racial makeup of the city was 69.6% Black or African American, 27.9% White, less than 0.1% Native American, less than 0.1% Asian, less than 0.1% Pacific Islander, less than 0.1% from other races, and 2.0% from two or more races. Hispanic or Latino of any race were less than 0.1% of the population.

There were 1,268 households, of which 26.7% had children under the age of 18 living with them, 21.2% were married couples living together, 28.5% had a female householder with no husband present, and 46.6% were non-families. 43.5% of all households were made up of individuals, and 15.2% had someone living alone who was 65 years of age or older. The average household size was 2.15 and the average family size was 3.00.

The distribution of the population by age was 31.6% 19 or under, 6.3% from 20 to 24, 19.2% from 25 to 44, 26.2% from 45 to 64, and 16.6% 65 or older. The median age was 36.9 years.

The median income for a household in the city was $16,682, and the median income for a family was $31,507. Males working full-time, year-round had a median income of $37,750 versus $21,917 for females. The per capita income for the city was $12,461. About 33.0% of families and 44.2% of the population were living below the poverty line, including 71.7% of those under the age of 18 and 20.6% of those ages 65 and older.

===2000 census===
As of the [[census]]<ref name="GR2">{{cite web|url=https://www.census.gov |publisher=[[United States Census Bureau]] |access-date=January 31, 2008 |title=U.S. Census website }}</ref> of 2000, there were 3,632 people, 1,561 households, and 900 families residing in the city. The population density was {{convert|515.1|PD/sqmi|PD/km2|sp=us|adj=off}}. There were 1,885 housing units at an average density of 103.2 per km{{sup|2}} (267.3 per sq&nbsp;mi). The racial makeup of the city was 35.93% [[Race and ethnicity in the United States Census|white]], 61.70% [[Race and ethnicity in the United States Census|black or African American]], 0.08% [[Race and ethnicity in the United States Census|Native American]], 0.72% [[Race and ethnicity in the United States Census|Asian]], 0.03% [[Race and ethnicity in the United States Census|Pacific Islander]], 0.36% from [[Race and ethnicity in the United States Census|other races]], and 1.18% from two or more races. [[Race and ethnicity in the United States Census|Hispanic]] or [[Race and ethnicity in the United States Census|Latino]] of any race were 0.74% of the population.

There were 1,561 households, out of which 30.4% had children under the age of 18 living with them, 29.3% were married couples living together, 25.2% had a female householder with no husband present, and 42.3% were non-families. 39.7% of all households were made up of individuals, and 17.6% had someone living alone who was 65 years of age or older. The average household size was 2.26 and the average family size was 3.08.

The distribution of the population by age was 30.4% under 18, 8.1% from 18 to 24, 22.0% from 25 to 44, 21.6% from 45 to 64, and 17.9% who were 65 or older. The median age was 36 years. For every 100 females, there were 79.5 males. For every 100 females age 18 and over, there were 70.2 males.

The median income for a household in the city was $21,607, and the median income for a family was $28,242. Males had a median income of $28,798 versus $18,125 for females. The [[per capita income]] for the city was $16,220. About 27.1% of families and 33.5% of the population were living below the poverty line, including 47.0% of those under the age of 18 and 20.9% of those ages 65 and older.