Statistics for Jefferson County
Latest official figures for Jefferson County, each linked to its source.
Demography
| Population | 580,451 persons | 2025 |
| Median age | 40.5 years | 2024 |
| Live births, July to June | 5,667 count | 2025 |
| Deaths, July to June | 4,872 count | 2025 |
| Crude birth rate, July to June | 9.76 per 1,000 inhabitants | 2025 |
| Crude death rate, July to June | 8.39 per 1,000 inhabitants | 2025 |
Labor market
| Unemployment rate | 4.4 % | 2026-08 |
Income and living conditions
| Poverty rate (US official measure) | 7.2 % | 2024 |
| Median household income | 110,656 USD | 2024 |
Economy
| Gross domestic product (GDP), US dollars | 46,222.6 USD million | 2024 |
| Real GDP growth | 1.3 % | 2024 |