Illinois · United States
Jacksonville population
19,103people · latest figure
Jacksonville has a population of 19,103, making it the 2342nd largest place we list in United States. It is in Illinois.
Jacksonville holds under a tenth of one per cent of United States's 349,035,494 people. New York City, the largest place we list there, is 461 times its size.
19,103
population
#2,342
Jacksonville is in Illinois, which has 945 recorded places.
Nearby in size
| Place | Region | Population |
|---|---|---|
| Tullahoma | Tennessee | 19,128 |
| Ozark | Missouri | 19,120 |
| Secaucus | New Jersey | 19,104 |
| Fairwood | Washington | 19,102 |
| Madison | Connecticut | 19,100 |
| Camp Springs | Maryland | 19,096 |
All places in United States → · Illinois →
Figures are the latest available in GeoNames (CC BY 4.0), which draws on national censuses of varying dates — treat them as recent, not same-year. Country totals are UN World Population Prospects 2024 (medium variant) where the UN lists the country separately; the handful it reports under a parent state keep a GeoNames figure and are marked as such. Sources & method.