Fairview Heights is a city in St. Clair County, Illinois, United States within Greater St. Louis. It is an eastern suburb of St. Louis. As of the 2020 census, Fairview Heights had a population of 16,706.
Geography
According to the 2010 census, Fairview Heights has a total area of , of which (or 99.33%) is land and (or 0.67%) is water.
French Village is an unincorporated community located immediately west of Fairview Heights.
Demographics
{| class="wikitable" style="text-align:center;"
|+Fairview Heights, Illinois – Racial and ethnic composition<br><small></small>
!Race / Ethnicity <small>(NH = Non-Hispanic)</small>
!Pop 2000
!Pop 2010
!
!% 2000
!% 2010
!
|-
|White alone (NH)
|11,628
|11,123
|style='background: #ffffe6; |9,146
|77.34%
|65.13%
|style='background: #ffffe6; |54.75%
|-
|Black or African American alone (NH)
|2,559
|4,518
|style='background: #ffffe6; |5,215
|17.02%
|26.46%
|style='background: #ffffe6; |31.22%
|-
|Native American or Alaska Native alone (NH)
|24
|47
|style='background: #ffffe6; |24
|0.16%
|0.28%
|style='background: #ffffe6; |0.14%
|-
|Asian alone (NH)
|320
|464
|style='background: #ffffe6; |478
|2.13%
|2.72%
|style='background: #ffffe6; |2.86%
|-
|Native Hawaiian or Pacific Islander alone (NH)
|1
|8
|style='background: #ffffe6; |11
|0.01%
|0.05%
|style='background: #ffffe6; |0.07%
|-
|Other race alone (NH)
|26
|28
|style='background: #ffffe6; |106
|0.17%
|0.16%
|style='background: #ffffe6; |0.63%
|-
|Mixed race or Multiracial (NH)
|187
|371
|style='background: #ffffe6; |995
|1.24%
|2.17%
|style='background: #ffffe6; |5.96%
|-
|Hispanic or Latino (any race)
|289
|519
|style='background: #ffffe6; |731
|1.92%
|3.04%
|style='background: #ffffe6; |4.38%
|-
|Total
|15,034
|17,078
|style='background: #ffffe6; |16,706
|100.00%
|100.00%
|style='background: #ffffe6; |100.00%
|}
2020 census
As of the 2020 census, Fairview Heights had a population of 16,706. The median age was 41.8 years. 19.5% of residents were under the age of 18 and 18.6% of residents were 65 years of age or older. For every 100 females there were 94.7 males, and for every 100 females age 18 and over there were 91.5 males age 18 and over.
100.0% of residents lived in urban areas, while 0.0% lived in rural areas.
There were 7,197 households in Fairview Heights, of which 25.5% had children under the age of 18 living in them. Of all households, 43.0% were married-couple households, 20.6% were households with a male householder and no spouse or partner present, and 30.2% were households with a female householder and no spouse or partner present. About 31.7% of all households were made up of individuals and 11.9% had someone living alone who was 65 years of age or older.