City in Morgan County, Illinois · 10.6 sq mi · 1,670 people per sq mi
About 18,000 people live in Jacksonville. The typical household earns $65,432, and the median resident is 37.6 years old.
2026 projection
From 18,242 in 2020
Poverty rate 18.45%
Men 37.1 · Women 39.1
1850–2026
17,644
2026 projection
3.3% 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.
1850–2026
17,644
2026 projection
3.3% 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 | 17,644 | -108 | 0.61% |
|---|---|---|---|
| 2025 | 17,752 | -61 | 0.34% |
| 2024 | 17,813 | -65 | 0.36% |
| 2023 | 17,878 | -86 | 0.48% |
| 2022 | 17,964 | -191 | 1.05% |
| 2021 | 18,155 | -87 | 0.48% |
| 2020 | 18,242 | -379 | 2.04% |
| 2019 | 18,621 | -168 | 0.89% |
| 2018 | 18,789 | -118 | 0.62% |
| 2017 | 18,907 | -196 | 1.03% |
Showing 10 of 33 years.
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S0101
Each square is about 1% of residents (roughly 180 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 5 residents
34% of residents age 15 and older are married.
| Status | Overall | Male | Female |
|---|---|---|---|
| Married | 34% | 33% | 34% |
| Never married | 42% | 46% | 38% |
| Divorced | 15% | 15% | 15% |
| Widowed | 7% | 3% | 11% |
| Separated | 2% | 2% | 2% |
U.S. Census Bureau, 2024 ACS 5-year estimates · Table S1201
10 sources, all from the U.S. Census Bureau