Winnebago 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 | Winnebago County | Winnebago County |
| State | Illinois | Illinois |
| State FIPS code | 17 | 17 |
| County FIPS code | 201 | 201 |
| Census region (code) | 2 | 2 |
| Census division (code) | 3 | 3 |
| Estimates base, April 1, 2020 | 285,371 | 285371 |
| Resident population, July 1, 2020 | 284,963 | 284963 |
| Resident population, July 1, 2021 | 283,413 | 283413 |
| Resident population, July 1, 2022 | 282,081 | 282081 |
| Resident population, July 1, 2023 | 282,214 | 282214 |
| Resident population, July 1, 2024 | 283,790 | 283790 |
| Numeric population change, 2023 to 2024 | 1,576 | 1576 |
| Births, year to July 1, 2024 | 3,204 | 3204 |
| Deaths, year to July 1, 2024 | 3,236 | 3236 |
| Natural change (births minus deaths), year to July 1, 2024 | -32 | -32 |
| International migration, year to July 1, 2024 | 1,697 | 1697 |
| Domestic migration, year to July 1, 2024 | -88 | -88 |
| Residual, year to July 1, 2024 | -1 | -1 |
| Birth rate per 1,000 population, year to July 1, 2024 | 11.3215 | 11.32147476 |
| Death rate per 1,000 population, year to July 1, 2024 | 11.4345 | 11.434548166 |
| Natural change rate per 1,000 population, year to July 1, 2024 | -0.1131 | -0.113073406 |
| International migration rate per 1,000 population, year to July 1, 2024 | 5.9964 | 5.9964240535 |
| Domestic migration rate per 1,000 population, year to July 1, 2024 | -0.3110 | -0.310951866 |
| Group quarters population, July 1, 2024 | 3,612 | 3612 |
Values as reported by the source: county_name=Winnebago County, state_name=Illinois, state_fips=17, county_fips=201, region=2, division=3, estimates_base_2020=285371, pop_2020=284963, pop_2021=283413, pop_2022=282081, pop_2023=282214, pop_2024=283790, npopchg_2024=1576, births_2024=3204, deaths_2024=3236, naturalchg_2024=-32, internationalmig_2024=1697, domesticmig_2024=-88, residual_2024=-1, rbirth_2024=11.32147476, rdeath_2024=11.434548166, rnaturalchg_2024=-0.113073406, rinternationalmig_2024=5.9964240535, rdomesticmig_2024=-0.310951866, gq_estimates_2024=3612