City in DeKalb County, Illinois · 10.1 sq mi · 1,890 people per sq mi
About 19,000 people live in Sycamore. The typical household earns $84,120, and the median resident is 36.1 years old.
2026 projection
From 18,649 in 2020
Poverty rate 8.14%
Men 35.9 · Women 36.3
1850–2026
19,135
2026 projection
2.6% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
1850–2026
19,135
2026 projection
2.6% since 2020 (increase)
Source: U.S. Census Bureau decennial counts and annual estimates. 2026 is a projection. Values between recorded years are interpolated.
Use the left and right arrow keys to inspect population observations.
| 2026 | 19,135 | +52 | 0.27% |
|---|---|---|---|
| 2025 | 19,083 | +224 | 1.19% |
| 2024 | 18,859 | +96 | 0.51% |
| 2023 | 18,763 | +3 | 0.02% |
| 2022 | 18,760 | +8 | 0.04% |
| 2021 | 18,752 | +103 | 0.55% |
| 2020 | 18,649 | +294 | 1.60% |
| 2019 | 18,355 | +196 | 1.08% |
| 2018 | 18,159 | +105 | 0.58% |
| 2017 | 18,054 | +135 | 0.75% |
Showing 10 of 33 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 186 people).
Hispanic or Latino residents can be of any race. All other groups exclude Hispanic residents.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table B03002
Half of households earn more, half earn less
Typical yearly pay for a worker 25 or older.
About 1 in 12 residents
52% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 52% | 55% | 49% |
| Never married | 33% | 33% | 33% |
| Divorced | 10% | 9% | 11% |
| Widowed | 3% | <1% | 5% |
| Separated | 2% | 2% | 2% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau