City in Cook County, Illinois · 5.4 sq mi · 2,071 people per sq mi
About 11,000 people live in Markham. The typical household earns $57,302, and the median resident is 34.2 years old.
2026 projection
From 11,619 in 2020
Poverty rate 18.03%
Men 29.5 · Women 37.9
1930–2026
11,193
2026 projection
3.7% since 2020 (decrease)
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.
1930–2026
11,193
2026 projection
3.7% since 2020 (decrease)
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 | 11,193 | -81 | 0.72% |
|---|---|---|---|
| 2025 | 11,274 | -22 | 0.19% |
| 2024 | 11,296 | +72 | 0.64% |
| 2023 | 11,224 | -26 | 0.23% |
| 2022 | 11,250 | -163 | 1.43% |
| 2021 | 11,413 | -206 | 1.77% |
| 2020 | 11,619 | -683 | 5.55% |
| 2019 | 12,302 | -93 | 0.75% |
| 2018 | 12,395 | -115 | 0.92% |
| 2017 | 12,510 | -97 | 0.77% |
Showing 10 of 25 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 114 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 6 residents
27% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 27% | 33% | 22% |
| Never married | 53% | 51% | 54% |
| Divorced | 12% | 10% | 14% |
| Widowed | 6% | 3% | 8% |
| Separated | 3% | 4% | 2% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau