Cary, Illinois Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Cary, Illinois is 17,875 as of the 2023 American Community Survey, making it the 143rd-largest city in Illinois. The median household income is $109,790, the median home value is $287,000, and the median age is 38.6.
The population has declined 1.7% since 2010 (18,348 → 18,031).
17,875
Population
2739
People / sq mi
$109,790
Median Income
$287,000
Median Home Value
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Cary covers 6.5 sq mi of land at 2739 people per square mile.
About Cary, IL
Homeownership is the standout figure in Cary: 85.7% of homes are owner-occupied, higher than the national rate. With 17,875 residents, Cary is a city in Illinois.
Median household income is $109,790, above the US median of $78,538. The poverty rate, 2.8%, is on the lower side for US cities and below the national 12.4%. Homes carry a median value of $287,000, with typical rent around $1,456.
About 45.5% of adults 25 and older have a bachelor’s degree, above the 35.0% national figure. A solid 17.7% of workers are based at home, above the national 14.0%, and the average commute runs about 29 minutes each way.
The ownership rate anchors the housing story in Cary, and tends to move with the age structure and home-value figures above.
Cary village Population History (2010-2024)
The city of Cary village had a population of 18,348 in 2010 and 18,031 in 2024, a -1.7% growth over 14 years. The peak was 18,348 in 2010. Average annual growth rate: -0.12%.
18,031
Population (2024)
18,348
Population (2010)
18,348
Peak (2010)
-0.12%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 18,348 |
| 2011 | 18,274 |
| 2012 | 18,197 |
| 2013 | 18,071 |
| 2014 | 18,023 |
| 2015 | 17,993 |
| 2016 | 17,903 |
| 2017 | 17,877 |
| 2018 | 17,836 |
| 2019 | 18,067 |
| 2020 | 17,810 |
| 2021 | 17,873 |
| 2022 | 17,839 |
| 2023 | 18,013 |
| 2024 | 18,031 |
Race & Ethnicity
| White | 86.4% |
| Black or African American | 0.7% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 1.1% |
| Two or More Races | 0.1% |
Economy & Income
$109,790
Median Household Income
$48,512
Per Capita Income
2.8%
Poverty Rate
3.8%
Unemployment Rate
Housing
$287,000
Median Home Value
$1,456
Median Rent
85.7%
Owner-Occupied
Education
96.8%
High School+
45.5%
Bachelor's+
Commute
1.9%
Drive Alone
75.8%
Public Transit
17.7%
Work From Home
28.6 min
Avg Commute
Community Profile
17.9%
Foreign Born
89.7%
Non-English at Home
5.4%
Veterans
8.0%
With Disability
97.0%
Health Insurance
99.1%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 22.2% |
| Finance, Insurance & Real Estate | 14.3% |
| Manufacturing | 13.9% |
| Information | 9.3% |
| Construction | 6.3% |
| Education, Health Care & Social Services | 5.4% |
| Retail Trade | 5.3% |
| Arts, Entertainment & Food Services | 4.9% |
| Public Administration | 3.7% |
| Transportation & Warehousing | 1.2% |
| Agriculture & Mining | 0.2% |
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Frequently Asked Questions
Cary, Illinois has a population of 17,875 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 143rd-largest city in Illinois.
The median household income in Cary, Illinois is $109,790, with 2.8% of residents living below the federal poverty level.
The median home value in Cary, Illinois is $287,000, with median monthly rent at $1,456 and a homeownership rate of 85.7%.
The median age in Cary, Illinois is 38.6 years. The population is 50.1% male and 49.9% female.
The population has declined 1.7% since 2010 (18,348 → 18,031).
Cary village, IL Climate
Cary village, IL has an average annual temperature of 8.8°C (48°F) and receives about 902 mm of precipitation per year. The warmest month is July and the coldest is January. Figures are 1970–2000 climate normals.
8.8°C
Avg Temp
902
Precip (mm/yr)
Jul
Hottest Month
Jan
Coldest Month
| Month | Avg (°C/°F) | Precip |
|---|---|---|
| January | -7° / 20° | 39 mm |
| February | -4° / 25° | 31 mm |
| March | 2° / 36° | 63 mm |
| April | 8° / 47° | 91 mm |
| May | 14° / 58° | 87 mm |
| June | 20° / 67° | 103 mm |
| July | 22° / 72° | 101 mm |
| August | 21° / 71° | 105 mm |
| September | 17° / 63° | 98 mm |
| October | 11° / 51° | 61 mm |
| November | 4° / 38° | 70 mm |
| December | -3° / 26° | 53 mm |
1970–2000 normals from WorldClim 2.1 (~9 km grid). Precipitation can be less precise near mountains or coastlines, where rainfall varies sharply over short distances.
Best time to visit Cary village, IL
The most comfortable months to visit Cary village, IL are typically August, July and June, when temperatures are mildest and rainfall is relatively low. The hottest month is July (around 29°C high). The coldest is January (near -11°C low). August is usually the wettest month.
Where to stay near Cary
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.