Rock County, Wisconsin: 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 | Rock County | Rock County |
| State | Wisconsin | Wisconsin |
| State FIPS code | 55 | 55 |
| County FIPS code | 105 | 105 |
| Census region (code) | 2 | 2 |
| Census division (code) | 3 | 3 |
| Estimates base, April 1, 2020 | 163,687 | 163687 |
| Resident population, July 1, 2020 | 163,761 | 163761 |
| Resident population, July 1, 2021 | 164,128 | 164128 |
| Resident population, July 1, 2022 | 163,959 | 163959 |
| Resident population, July 1, 2023 | 164,443 | 164443 |
| Resident population, July 1, 2024 | 165,461 | 165461 |
| Numeric population change, 2023 to 2024 | 1,018 | 1018 |
| Births, year to July 1, 2024 | 1,811 | 1811 |
| Deaths, year to July 1, 2024 | 1,785 | 1785 |
| Natural change (births minus deaths), year to July 1, 2024 | 26 | 26 |
| International migration, year to July 1, 2024 | 230 | 230 |
| Domestic migration, year to July 1, 2024 | 760 | 760 |
| Residual, year to July 1, 2024 | 2 | 2 |
| Birth rate per 1,000 population, year to July 1, 2024 | 10.9790 | 10.978951453 |
| Death rate per 1,000 population, year to July 1, 2024 | 10.8213 | 10.821329841 |
| Natural change rate per 1,000 population, year to July 1, 2024 | 0.1576 | 0.1576216111 |
| International migration rate per 1,000 population, year to July 1, 2024 | 1.3943 | 1.3943450216 |
| Domestic migration rate per 1,000 population, year to July 1, 2024 | 4.6074 | 4.6074009409 |
| Group quarters population, July 1, 2024 | 2,982 | 2982 |
Values as reported by the source: county_name=Rock County, state_name=Wisconsin, state_fips=55, county_fips=105, region=2, division=3, estimates_base_2020=163687, pop_2020=163761, pop_2021=164128, pop_2022=163959, pop_2023=164443, pop_2024=165461, npopchg_2024=1018, births_2024=1811, deaths_2024=1785, naturalchg_2024=26, internationalmig_2024=230, domesticmig_2024=760, residual_2024=2, rbirth_2024=10.978951453, rdeath_2024=10.821329841, rnaturalchg_2024=0.1576216111, rinternationalmig_2024=1.3943450216, rdomesticmig_2024=4.6074009409, gq_estimates_2024=2982