As outdoor summer activities kick off, Orkin unveils the nation's top mosquito hotspots, with Detroit, Cleveland and Denver climbing the ranksATLANTA, May 20, 2025 /PRNewswire/ -- Mosquito season is officially here — and some U.S. cities are feeling it more than others. According to Orkin's 2025 Top 50 Mosquito Cities List, Los Angeles claims the No. 1 spot for the fourth year in a row, with fast-climbing cities like Detroit, Cleveland and Denver making major moves into the top 10.The annual list is based o ...