Sycamore, Illinois Population 2026
Updated April 2026 · US Census ACS 2023 5-Year Estimates
The population of Sycamore, Illinois is 18,243 as of the 2023 American Community Survey, making it the 138th-largest city in Illinois. The median household income is $80,837, the median home value is $254,200, and the median age is 37.6.
The population has grown 8.3% since 2010 (17,522 → 18,968).
18,243
Population
1802
People / sq mi
$80,837
Median Income
$254,200
Median Home Value
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Sycamore covers 10.1 sq mi of land at 1802 people per square mile.
About Sycamore, IL
Sycamore is defined demographically by education — 43.6% of adults hold a bachelor’s degree, above the national average. With 18,243 residents, Sycamore is a city in Illinois.
Household earnings are middling, with a median of $80,837 — near the US median of $78,538. Poverty runs at 8.6%, below the national 12.4%. Homes carry a median value of $254,200, with typical rent around $1,062.
College attainment is above the local norm at 43.6%, above the national 35.0%. Remote work is below the national 14.0% at 12.7%, and the average commute runs about 26 minutes each way.
The education numbers are the throughline: a college-heavy population in Sycamore usually coincides with higher incomes and a workforce concentrated in professional and information industries.
Sycamore city Population History (2010-2024)
The city of Sycamore city had a population of 17,522 in 2010 and 18,968 in 2024, a 8.3% growth over 14 years. The peak was 18,968 in 2024. Average annual growth rate: 0.57%.
18,968
Population (2024)
17,522
Population (2010)
18,968
Peak (2024)
0.57%
Avg Annual Growth
| Year | Population |
|---|---|
| 2010 | 17,522 |
| 2011 | 17,450 |
| 2012 | 17,503 |
| 2013 | 17,570 |
| 2014 | 17,755 |
| 2015 | 17,772 |
| 2016 | 17,900 |
| 2017 | 18,023 |
| 2018 | 18,125 |
| 2019 | 18,322 |
| 2020 | 18,675 |
| 2021 | 18,778 |
| 2022 | 18,804 |
| 2023 | 18,837 |
| 2024 | 18,968 |
Race & Ethnicity
| White | 88.9% |
| Black or African American | 3.5% |
| Asian | 0.0% |
| Hispanic or Latino (any race) | 0.7% |
| Two or More Races | 0.0% |
Economy & Income
$80,837
Median Household Income
$40,963
Per Capita Income
8.6%
Poverty Rate
2.7%
Unemployment Rate
Housing
$254,200
Median Home Value
$1,062
Median Rent
71.0%
Owner-Occupied
Education
95.9%
High School+
43.6%
Bachelor's+
Commute
1.6%
Drive Alone
76.4%
Public Transit
12.7%
Work From Home
26.4 min
Avg Commute
Community Profile
20.1%
Foreign Born
92.8%
Non-English at Home
6.2%
Veterans
11.9%
With Disability
97.5%
Health Insurance
97.8%
Internet Access
Employment by Industry
| Professional, Scientific & Management | 28.9% |
| Manufacturing | 13.9% |
| Finance, Insurance & Real Estate | 11.4% |
| Retail Trade | 7.8% |
| Education, Health Care & Social Services | 6.3% |
| Information | 5.3% |
| Public Administration | 4.1% |
| Arts, Entertainment & Food Services | 4.0% |
| Construction | 2.9% |
| Transportation & Warehousing | 1.6% |
| Agriculture & Mining | 1.6% |
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Frequently Asked Questions
Sycamore, Illinois has a population of 18,243 according to the US Census Bureau's 2023 American Community Survey 5-year estimates, making it the 138th-largest city in Illinois.
The median household income in Sycamore, Illinois is $80,837, with 8.6% of residents living below the federal poverty level.
The median home value in Sycamore, Illinois is $254,200, with median monthly rent at $1,062 and a homeownership rate of 71.0%.
The median age in Sycamore, Illinois is 37.6 years. The population is 47.2% male and 52.8% female.
The population has grown 8.3% since 2010 (17,522 → 18,968).
Where to stay in Sycamore
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Data from the American Community Survey (ACS) 5-Year estimates.
Source: U.S. Census Bureau ACS, 2026.