Statistics for Rock County
Latest official figures for Rock County, each linked to its source.
Demography
| Population | 166,472 persons | 2025 |
| Median age | 40.3 years | 2024 |
| Live births, July to June | 1,797 count | 2025 |
| Deaths, July to June | 1,725 count | 2025 |
| Crude birth rate, July to June | 10.82 per 1,000 inhabitants | 2025 |
| Crude death rate, July to June | 10.39 per 1,000 inhabitants | 2025 |
Labor market
| Unemployment rate | 3.7 % | 2026-08 |
Income and living conditions
| Poverty rate (US official measure) | 9.9 % | 2024 |
| Median household income | 75,673 USD | 2024 |
Economy
| Gross domestic product (GDP), US dollars | 10,849.1 USD million | 2024 |
| Real GDP growth | 1.6 % | 2024 |