According to a WalletHub survey, Plano has been ranked as the least stressful city in Texas. The survey ranked 182 metropolitan cities and gauged stressed levels for health and safety, employment, finances, and family. Factors that made Plano the #1 Texas city were the fact that it offers a good work-life balance, and the number of those employed matches the number of residents, approximately 280,000. On the flip side, Houston ranks as the most stressful city in Texas, with Dallas a close 2nd. Overall, the least stressful city in America is Fremont, California and the MOST stressed city in America is..... DETROIT.