10 Best Green Cities

Going green is a reoccurring theme in towns across the U.S. We've dug deep and found places where protecting the environment, saving energy and loving planet Earth come naturally.

What makes a city green? Well, no matter what the local government is doing, it really comes down to the residents who live there. We went looking for places where large segments of the population recycle, drive fuel-efficient cars or use alternative transportation, save energy, and are focused on keeping Mother Earth looking her best. Kermit the Frog was right, "It's not easy being green." But these places sure make it look like second nature.

Ranking Criteria

Lots of recycling • Use of fuel-efficient cars • Sustainable building practices • Environmental protections demanded by residents

10. Louisville, KY Population 608,732
9. Portland, OR Population 612,206
8. Springfield, IL Population 117,061
7. Eugene, OR Population 159,615
6. Greensboro, NC Population 279,427
5. Kansas City, MO Population 467,990
4. Concord, CA Population 126,268
3. Charlotte, NC Population 792,137
2. Athens, GA Population 119,684
1. Boulder, CO Population 103,919