Editing Crystal Lake, Illinois (section)

==Demographics==
{{US Census population
|1880= 546
|1890= 781
|1900= 950
|1910= 1242
|1920= 2249
|1930= 3732
|1940= 3917
|1950= 4832
|1960= 8314
|1970= 14541
|1980= 18590
|1990= 24512
|2000= 38000
|2010= 40743
|2020= 40269
|align-fn=center
|footnote=U.S. Decennial Census<ref name="DecennialCensus">{{cite web|url=https://www.census.gov/programs-surveys/decennial-census/decade.html|title=Decennial Census of Population and Housing by Decades|publisher=[[US Census Bureau]]|access-date=}}</ref><br> 2010<ref name=2010CensusP2/> 2020<ref name="2020 Census Population">{{cite web|url=https://www2.census.gov/programs-surveys/decennial/2020/data/01-Redistricting_File--PL_94-171/Illinois/|publisher=Census.gov|access-date=August 14, 2021|title=Index of /Programs-surveys/Decennial/2020/Data/01-Redistricting_File--PL_94-171/Illinois }}</ref>
}}

{| class="wikitable"  style="text-align:center;"
|+'''Crystal Lake, Illinois – Racial and ethnic composition'''<br><small>{{nobold|''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 may be of any race.''}}</small>
!Race / Ethnicity <small>(''NH = Non-Hispanic'')</small>
!Pop 2000<ref name=2000CensusP004>{{Cite web|title=P004: Hispanic or Latino, and Not Hispanic or Latino by Race – 2000: DEC Summary File 1 – Crystal Lake city, Illinois|url=https://data.census.gov/table?g=1600000US1717887&tid=DECENNIALSF12000.P004|website=[[United States Census Bureau]] |access-date=January 26, 2024}}</ref>
!Pop 2010<ref name=2010CensusP2>{{Cite web|title=P2 Hispanic or Latino, and Not Hispanic or Latino by Race – 2010: DEC Redistricting Data (PL 94-171) - Crystal Lake city, Illinois|url=https://data.census.gov/cedsci/table?q=p2&g=1600000US1717887&tid=DECENNIALPL2010.P2|website=[[United States Census Bureau]]}}</ref>
!{{partial|Pop 2020}}<ref name=2020CensusP2>{{Cite web|title=P2 Hispanic or Latino, and Not Hispanic or Latino by Race – 2020: DEC Redistricting Data (PL 94-171) - Crystal Lake city, Illinois|url=https://data.census.gov/cedsci/table?q=p2&g=1600000US1717887&tid=DECENNIALPL2020.P2|website=[[United States Census Bureau]]}}</ref>
!% 2000
!% 2010
!{{partial|% 2020}}
|-
|[[Non-Hispanic or Latino whites|White]] alone (NH)
|34,067
|33,951
|style='background: #ffffe6; |30,976
|89.65%
|83.33%
|style='background: #ffffe6; |76.92%
|-
|[[Non-Hispanic or Latino African Americans|Black or African American]] alone (NH)
|193
|377
|style='background: #ffffe6; |586
|0.51%
|0.93%
|style='background: #ffffe6; |1.46%
|-
|[[Native Americans in the United States|Native American]] or [[Alaska Native]] alone (NH)
|53
|54
|style='background: #ffffe6; |37
|0.14%
|0.13%
|style='background: #ffffe6; |0.09%
|-
|[[Asian Americans|Asian]] alone (NH)
|735
|1,012
|style='background: #ffffe6; |1,091
|1.93%
|2.48%
|style='background: #ffffe6; |2.71%
|-
|[[Pacific Islander Americans|Pacific Islander]] alone (NH)
|4
|7
|style='background: #ffffe6; |3
|0.01%
|0.02%
|style='background: #ffffe6; |0.01%
|-
|[[Race and ethnicity in the United States census|Other race]] alone (NH)
|19
|27
|style='background: #ffffe6; |147
|0.05%
|0.07%
|style='background: #ffffe6; |0.37%
|-
|[[Multiracial Americans|Mixed race or Multiracial]] (NH)
|267
|545
|style='background: #ffffe6; |1,474
|0.70%
|1.34%
|style='background: #ffffe6; |3.66%
|-
|[[Hispanic and Latino Americans|Hispanic or Latino]] (any race)
|2,662
|4,770
|style='background: #ffffe6; |5,955
|7.01%
|11.71%
|style='background: #ffffe6; |14.79%
|-
|'''Total'''
|'''38,000'''
|'''40,743'''
|style='background: #ffffe6; |'''40,269'''
|'''100.00%'''
|'''100.00%'''
|style='background: #ffffe6; |'''100.00%'''
|}

As of the [[2020 United States census|2020 Census]],<ref name=":0" /> there were 40,269 people, 14,780 households, and 10,551 families living in the city. There were 15,371 total housing units, and 31.9% were in multi-unit structures. The racial makeup of the city was 79.8% [[White Americans|White]] (76.92% white non-Hispanic), 1.5% [[African Americans|Black or African American]], 0.4% [[Native Americans in the United States|Native American]], 2.8% [[Asian Americans|Asian]], <0.01% [[Pacific Islander]], 6.1% from [[Race and ethnicity in the United States#Members of other races|other races]], and 9.3% from [[Multiracial Americans|two or more races]]. [[Hispanic and Latino Americans|Hispanic]] or [[Hispanic and Latino Americans|Latino]] of any race were 14.8% of the population.

35.4% of the households included children under 18, 51.0% were married couples living together, 5.3% had a female householder with no spouse present, and 2.6% had a male householder with no spouse present.

In the city, the population was spread out, with 6.1% under the age of 5, 24.0% under the age of 18, 76.0% aged 18 and older, and 13.5% who were 65 years of age or older. The median age was 39.6 years. For every 100 females, there were 97.9 males.

The median income for a household in the city was $87,578, and the median income for a family was $105,324. Males had a median income of $58,611 versus $41,026 for females. The median income for the city was $36,405. About 4.9% of families and 6.9% of the population were below the poverty line, including 9.9% of those under age 18 and 6.2% of those age 65 or over.<ref name="Factfinder2.census.gov" />

In 1990, the population of Latinos (Hispanics) was at 0.1%.<ref>{{cite web|title=1990 Census|url=https://www.census.gov/main/www/cen1990.html|access-date=2010-07-28|publisher=Census.gov}}</ref> Per the 2000 US Census, the Latino population increased to 7% and per the 2010 US Census, the Latino population increased to 11.7%.<ref name="Quickfacts.census.gov" /> As of 2020, the population of Latinos is 14.8%.<ref name=":0" />

===2010 census===
As of the [[2010 United States Census|2010 Census]],<ref>{{cite web |url=https://factfinder.census.gov/bkmk/table/1.0/en/DEC/10_DP/DPDP1/1600000US1717887 |title=Profile of General Population and Housing Characteristics: 2010 |publisher=United States Census Bureau |access-date=2017-10-09 |archive-url=https://archive.today/20200213100141/https://factfinder.census.gov/bkmk/table/1.0/en/DEC/10_DP/DPDP1/1600000US1717887 |archive-date=2020-02-13 |url-status=dead }}</ref> there were 40,743 people, 14,421 households, and 10,551 families living in the city. The population density was 2,220/sq mi (857/km{{sup|2}}).<ref name="Quickfacts.census.gov">{{cite web |url=http://quickfacts.census.gov/qfd/states/17/1717887.html |title=Crystal Lake (city) QuickFacts from the US Census Bureau |publisher=Quickfacts.census.gov |access-date=2015-03-30 |archive-url=https://web.archive.org/web/20150417205656/http://quickfacts.census.gov/qfd/states/17/1717887.html |archive-date=2015-04-17 |url-status=dead }}</ref> There were 15,176 total housing units and 22% of all housing units were in multi-unit structures. The racial makeup of the city was 90.2% [[White Americans|White]], 1.0% [[African Americans|Black or African American]], 0.4% [[Native Americans in the United States|Native American]], 2.5% [[Asian Americans|Asian]], <0.01% [[Pacific Islander]], 4.1% from [[Race and ethnicity in the United States#Members of other races|other races]], and 1.8% from [[Multiracial Americans|two or more races]]. [[Hispanic and Latino Americans|Hispanic]] or [[Hispanic and Latino Americans|Latino]] of any race were 11.7% of the population.

39.2% of the households included children under 18, 58.9% were married couples living together, 10.1% had a female householder with no husband present, and 26.8% were non-families. 22.1% of all households were made up of individuals living alone, and 20.3% had someone at least 65 years old living alone. The average household size was 2.81 and the average family size was 3.31.

In the city, the population was spread out, with 28.1% under the age of 18, 8.% from 18 to 24, 26.2% from 25 to 44, 27.7% from 45 to 64, and 10.0% who were 65 years of age or older. The median age was 37 years. For every 100 females, there were 97.6 males.

The median income for a household in the city was $78,311, and the median income for a family was $91,870. Males had a median income of $61,982 versus $44,288 for females. The median income for the city was $36,405. About 5.2% of families and 6.2% of the population were below the poverty line, including 9.1% of those under age 18 and 5.3% of those age 65 or over.<ref name="Factfinder2.census.gov">{{cite web|url=https://www.census.gov |title=U.S. Census website |publisher=[[United States Census Bureau]] |date=2010-10-05 |access-date=2015-03-30}}</ref>