Hydrologists held about 7,000 jobs in 2014. The industries that employed the most hydrologists were as follows:
Federal government, excluding postal service
Management, scientific, and technical consulting services
State government, excluding education and hospitals
Local government, excluding education and hospitals
Hydrologists work in offices and in the field. In offices, hydrologists spend much their time using computers to analyze data and model their findings. In the field, hydrologists may have to wade into lakes and streams to collect samples or to read and inspect monitoring equipment. Hydrologists also need to write reports detailing the status of surface water and groundwater in specific regions. Many jobs require significant travel. Jobs in the private sector may require international travel.
Most hydrologists work full time. However, the length of daily shifts may vary when hydrologists work in the field.