A growing number of tech companies, big and small, are relocating to (or opening additional offices in) emerging startup hubs. But as they seek relief from the high cost of doing business in Silicon Valley, they are finding that salaries in cities like Salt Lake City, Denver, and Atlanta are on the rise.

Why it matters: Companies have increasingly bemoaned the challenges of growing in San Francisco and the rest of the Bay Area due to housing shortages, skyrocketing engineer salaries and other costs. But as other emerging hubs in the U.S. see a boom in their local tech industries, they may not be less expensive job markets for long.

Data from online jobs marketplace ZipRecruiter shows this trend, but it's also felt by entrepreneurs and software startup founders.

What's next: As big tech companies like Apple, Google, and Amazon open new offices or continue to grow in these cities, expect the competition for tech talent to intensify.

To be sure: Salaries for tech jobs appear to be increasing everywhere, not just in those few cities, highlighting the overall demand for such workers.

Methodology: ZipRecruiter, an online jobs marketplace, shared with Axios salary data for these cities, covering about 300 job titles the company includes in its "tech jobs" category.

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