By Matt Grossman

3M Co. sales grew 6% year over year last month, driven by higher sales in the company's health-care and consumer segments.

July sales rose to $2.8 billion. On an organic local-currency basis, sales were 3% higher. Acquisitions net of divestitures contributed an additional three percentage points of growth.

Total sales increased 29% in health care, 9% in consumer, and 6% in safety and industrial, while transportation and electronics fell 7%.

On an organic basis, health-care sales grew 11%, while consumer sales rose 9% and safety and industrial sales were up 8%. Transportation and electronics sales declined 6% organically year over year in the month.

Organic sales were 8% higher in the U.S. and 6% higher in the Americas overall, and were flat in Europe, the Middle East and Africa. Asia Pacific sales declined 1% organically, but increased by 13% in China.

Write to Matt Grossman at matt.grossman@wsj.com