While journalism and content writing both involve significant amounts of writing, there are vast differences between them. Journalism majorly deals with news media and involves reporting events based on facts. Journalists rely on data, research, and interviews to build their stories.
Any content published on the web falls under the purview of content writing. This includes website content, blogs, articles, eBooks, press releases, PR content, promotional content, social media creatives, etc.
Content writers can build on already published content pieces. Journalism is investigative, whereas content writing is more commercial in nature.
The professions also vary based on working hours and style. While journalists mostly work in the field, content writers can work from home or office.