What is the Top Side Hustle in Your City? Discover the Fastest-Growing Gig

Side hustles have become increasingly popular in recent years, with more and more people looking to supplement their income by working gigs outside of their regular 9-5 jobs. According to a survey by Bankrate, 36% of U.S. adults are currently engaged in a side hustle to make extra money for bills, groceries, rent, and more. With the rise of the gig economy, there are countless opportunities for individuals to start their own side hustle and earn additional income.

While some popular side hustles like rideshare driving, freelance writing, online tutoring, virtual assisting, and pet sitting are well-known, there are other emerging opportunities that offer great earning potential. One such side hustle that is currently experiencing rapid growth is operating a mobile car wash service. According to SideHustles.com, interest in mobile car washing has seen a 276% search growth between 2023 and 2024, with the greatest spike in Phoenix, Arizona.

Edward Huang, a career expert at SideHustles, attributes this growth to a shift towards convenience-driven services, where customers prefer professionals to come to them rather than visiting a traditional car wash. For entrepreneurs, mobile car washing presents a low-barrier, high-demand opportunity with flexible hours and minimal overhead costs. This makes it an attractive option for individuals looking to start a side hustle in the service industry.

In addition to mobile car washing, other fast-growing side hustles include selling stock photos online (151% growth), crypto trading (122% growth), personal shopping (100% growth), and delivering food (87% growth). These opportunities cater to a wide range of interests and skill sets, allowing individuals to choose a side hustle that aligns with their strengths and passions.

In some of the most populated cities in the U.S., pet sitting has emerged as a top trending side hustle. Cities like Boston, Massachusetts, Columbus, Ohio, San Francisco, California, and Seattle, Washington have seen a surge in demand for pet sitting services, making it a lucrative opportunity for animal lovers looking to earn extra income.

If you’re considering starting a side hustle but are unsure where to begin, exploring the top trending side hustles for 2025 across different cities can provide inspiration and guidance. Whether you’re interested in starting a mobile car wash service, selling stock photos online, or pet sitting, there are plenty of opportunities to explore and capitalize on in the growing gig economy.

In conclusion, the rise of side hustles offers individuals the chance to pursue their passions, earn extra income, and gain valuable experience outside of their regular jobs. By leveraging emerging trends and exploring new opportunities, aspiring side hustlers can find success and fulfillment in their entrepreneurial endeavors. Whether you’re looking to make a few extra bucks or build a thriving business, starting a side hustle can be a rewarding and lucrative venture.