demographer

Everyday

A scientist who studies populations: how many people live in a place, how old they are, how many are born, die or move. tree →

In the lessons

In geography and social studies, demographers use the census and other numbers to show how populations grow or shrink and how they change; governments use their work to plan schools, hospitals and homes. Phrases: «demographers predict», «population trends», «birth rate».

Examples

• A demographer studies how many people are born each year. tree →
• Demographers say the town's population will double. tree →
• The demographer used census numbers to make a chart. tree →
• Demographers noticed that families are getting smaller. tree →
• Planners asked a demographer how many school places would be needed. tree →
• My aunt is a demographer who studies where people move. tree →

Note

Countable noun. Related words: demography (the study), demographic (about population, or a group of people). Pronounced «de-MOG-ra-fer». «Demo» comes from Greek for people, as in democracy.