St. Clair County, Illinois: population and components of change
Source: U.S. Census Bureau, Population Estimates Program, Vintage 2024: County Population Totals and Components of Change 2020-2024 (CO-EST2024-ALLDATA). Figures cover the April 1, 2020 estimates base through July 1, 2024; data fetched 2026-10-30T08:41:21Z.
| Item | Value | As reported |
|---|---|---|
| County | St. Clair County | St. Clair County |
| State | Illinois | Illinois |
| State FIPS code | 17 | 17 |
| County FIPS code | 163 | 163 |
| Census region (code) | 2 | 2 |
| Census division (code) | 3 | 3 |
| Estimates base, April 1, 2020 | 257,631 | 257631 |
| Resident population, July 1, 2020 | 257,070 | 257070 |
| Resident population, July 1, 2021 | 255,210 | 255210 |
| Resident population, July 1, 2022 | 252,947 | 252947 |
| Resident population, July 1, 2023 | 252,094 | 252094 |
| Resident population, July 1, 2024 | 251,149 | 251149 |
| Numeric population change, 2023 to 2024 | -945 | -945 |
| Births, year to July 1, 2024 | 2,139 | 2139 |
| Deaths, year to July 1, 2024 | 2,817 | 2817 |
| Natural change (births minus deaths), year to July 1, 2024 | -678 | -678 |
| International migration, year to July 1, 2024 | 597 | 597 |
| Domestic migration, year to July 1, 2024 | -865 | -865 |
| Residual, year to July 1, 2024 | 1 | 1 |
| Birth rate per 1,000 population, year to July 1, 2024 | 8.5009 | 8.5008634 |
| Death rate per 1,000 population, year to July 1, 2024 | 11.1954 | 11.195386722 |
| Natural change rate per 1,000 population, year to July 1, 2024 | -2.6945 | -2.694523322 |
| International migration rate per 1,000 population, year to July 1, 2024 | 2.3726 | 2.3726112435 |
| Domestic migration rate per 1,000 population, year to July 1, 2024 | -3.4377 | -3.437703058 |
| Group quarters population, July 1, 2024 | 4,795 | 4795 |
Values as reported by the source: county_name=St. Clair County, state_name=Illinois, state_fips=17, county_fips=163, region=2, division=3, estimates_base_2020=257631, pop_2020=257070, pop_2021=255210, pop_2022=252947, pop_2023=252094, pop_2024=251149, npopchg_2024=-945, births_2024=2139, deaths_2024=2817, naturalchg_2024=-678, internationalmig_2024=597, domesticmig_2024=-865, residual_2024=1, rbirth_2024=8.5008634, rdeath_2024=11.195386722, rnaturalchg_2024=-2.694523322, rinternationalmig_2024=2.3726112435, rdomesticmig_2024=-3.437703058, gq_estimates_2024=4795