# Union membership rate

Union members as a percent of employed wage and salary workers, annual average, from the Current Population Survey of the U.S. Census Bureau and the U.S. Bureau of Labor Statistics (series LUU0204899600 for the nation).

## Key facts

- Union membership rate in the United States was 10% in 2025, according to the U.S. Bureau of Labor Statistics.
- Hawaii had the highest union membership rate of 51 states in 2025, at 24.8%, and South Dakota the lowest, at 2.3%. Source: the U.S. Bureau of Labor Statistics.
- Published for 52 places, with figures from 1983 to 2025.
- Figures last updated on 2026-10-18.

- Indicator id: `union_membership_rate`
- Unit: %
- Note: Union members are members of a labor union or an employee association similar to a union. Annual averages of the monthly Current Population Survey, a household survey, so the figures carry sampling error, which is larger for small states. Wage and salary workers exclude the incorporated and unincorporated self employed. State figures are by state of residence. The 2025 averages cover 11 months: October 2025 was not collected during the federal government shutdown. For workers covered by a union contract, members or not, use union_representation_rate.
- Web page: https://invokely.ai/en/union-membership-rate
- API: https://invokely.ai/api/v1/indicators/union_membership_rate

## Latest figures

| Place | Period | % | Source |
|---|---|---:|---|
| United States | 2025 | 10 | U.S. Bureau of Labor Statistics. Union affiliation data from the Current Population Survey: members of unions, percent of employed wage and salary workers, nation and states (LUU0204899600 and LUU02048996<state FIPS>). https://download.bls.gov/pub/time.series/lu/lu.data.1.AllData. Retrieved 2026-10-18. |

## Rankings

- [US states](https://invokely.ai/rankings/union-membership-rate/us-states.md) (51 places)