Massachusetts’ labor force was 71,140 people smaller in August than a year earlier, even as the state’s unemployment rate edged down to 4.3%, according to new seasonally adjusted estimates from the U.S. Bureau of Labor Statistics.

The state’s civilian labor force — people who are working or actively looking for work — totaled 3,871,860 in August, compared with 3,943,000 in August 2025. The number counted as unemployed declined from 178,270 to 166,328 over the same span. From July to August, the labor force grew by 908 while unemployment fell by 2,211, producing the one-tenth-point decline in the jobless rate from 4.4% to 4.3%.

The latest reading is preliminary, and the changes should be interpreted carefully. In its September 18 state employment summary, BLS said eight states and the District of Columbia recorded statistically significant unemployment-rate decreases in August. Massachusetts was not among them. That means the numerical movement in the state estimate was not large enough, given the survey’s sampling uncertainty, to be classified as a significant monthly change.

Payroll jobs tell a steadier story

A separate survey of employers estimated 3,706,000 Massachusetts nonfarm payroll jobs in August, down 7,100 from July but up 8,300 from August 2025. BLS reported significant monthly payroll increases in four states and no significant change in the other 46 states and the District of Columbia; Massachusetts was in the latter group.

The industry detail shows where the year-over-year movement occurred. Education and health services added an estimated 14,400 jobs, rising to 862,800. Manufacturing increased by 4,100 to 229,700, and construction added 2,300 to 167,900. Professional and business services, however, fell by 3,200 to 604,700, while trade, transportation and utilities declined by 4,400 to 555,600.

The apparent tension between a smaller labor force and slightly higher payroll employment is not a contradiction. The labor-force figures come from a household-based program that classifies Massachusetts residents by employment status, while payroll estimates come from employers and count jobs located in the state. A person can hold more than one payroll job, and commuters can live in one state while working in another. BLS also notes that the two series are estimated independently and are revised on different schedules.

What the data mean for Massachusetts

The practical signal is that the headline unemployment rate alone does not describe the full state labor market. A lower rate can reflect fewer people seeking work as well as stronger hiring. In August, the year-over-year contraction in the Massachusetts labor force was much larger than the decline in the number unemployed, while payroll employment was nearly flat on a percentage basis.

Businesses and policymakers will get another checkpoint when BLS releases September state estimates in October. Until then, the August figures point to a labor market with modest payroll stability but a smaller pool of participating workers than one year earlier — a distinction that matters for employers trying to fill jobs and for state officials assessing workforce supply.