Missouri: 80 cities covered
Across 80 Missouri cities with a positive case for switching, the average incremental payback is about 15.7 years against a like-for-like gas furnace replacement — but that average hides real spread, which is why each city gets its own page rather than one statewide number.
- Kansas City — 516,032 people, 3750 HDD
- St. Louis — 279,695 people, 3639 HDD
- Springfield — 170,596 people, 3541 HDD
- Columbia — 130,900 people, 3939 HDD
- Independence — 121,629 people, 3709 HDD
- Lee's Summit — 106,419 people, 3709 HDD
- O'Fallon — 95,355 people, 3990 HDD
- St. Charles — 72,458 people, 3396 HDD
- St. Joseph — 71,098 people, 4269 HDD
- St. Peters — 61,398 people, 3990 HDD
- Blue Springs — 61,246 people, 3709 HDD
- Joplin — 53,605 people, 3249 HDD
- Florissant — 51,290 people, 3396 HDD
- Chesterfield — 49,465 people, 3990 HDD
- Wentzville — 48,646 people, 3990 HDD
- Jefferson City — 42,564 people, 3636 HDD
- Cape Girardeau — 40,818 people, 3304 HDD
- Wildwood — 35,082 people, 3990 HDD
- University City — 34,349 people, 3396 HDD
- Liberty — 31,245 people, 3465 HDD
- Ballwin — 31,036 people, 3990 HDD
- Kirkwood — 29,348 people, 3396 HDD
- Raytown — 29,244 people, 3709 HDD
- Maryland Heights — 27,671 people, 3396 HDD
- Gladstone — 27,579 people, 3750 HDD
- Grandview — 26,630 people, 514 HDD
- Nixa — 26,352 people, 3541 HDD
- Raymore — 25,962 people, 514 HDD
- Belton — 25,861 people, 514 HDD
- Hazelwood — 24,951 people, 3396 HDD
- Webster Groves — 23,525 people, 3639 HDD
- Ozark — 23,248 people, 3541 HDD
- Sedalia — 22,310 people, 3714 HDD
- Republic — 21,392 people, 3541 HDD
- Arnold — 21,036 people, 3639 HDD
- Rolla — 20,660 people, 3857 HDD
- Warrensburg — 19,998 people, 4159 HDD
- Farmington — 19,165 people, 3681 HDD
- Lake St. Louis — 19,160 people, 3990 HDD
- Creve Coeur — 18,533 people, 3396 HDD
- Manchester — 18,122 people, 3990 HDD
- Ferguson — 18,043 people, 3396 HDD
- Kirksville — 17,841 people, 4699 HDD
- Clayton — 17,512 people, 3396 HDD
- Grain Valley — 16,859 people, 3709 HDD
- Hannibal — 16,809 people, 3687 HDD
- Poplar Bluff — 16,177 people, 3224 HDD
- Sikeston — 16,062 people, 3304 HDD
- Jackson — 15,929 people, 3304 HDD
- Carthage — 15,703 people, 3249 HDD
- Overland — 15,547 people, 3396 HDD
- Lebanon — 15,538 people, 2701 HDD
- Washington — 15,521 people, 3754 HDD
- Troy — 14,963 people, 3754 HDD
- Dardenne Prairie — 14,407 people, 3990 HDD
- Marshall — 13,791 people, 4236 HDD
- Neosho — 13,782 people, 3186 HDD
- Festus — 13,730 people, 3639 HDD
- Webb City — 13,391 people, 3249 HDD
- Moberly — 13,337 people, 4135 HDD
- Eureka — 13,277 people, 3990 HDD
- Union — 13,198 people, 3754 HDD
- Jennings — 13,024 people, 3396 HDD
- Branson — 12,869 people, 3351 HDD
- St. Ann — 12,704 people, 3396 HDD
- West Plains — 12,704 people, 3272 HDD
- Fulton — 12,573 people, 3939 HDD
- Crestwood — 12,239 people, 3639 HDD
- Town and Country — 11,625 people, 3990 HDD
- Bolivar — 11,549 people, 3541 HDD
- Mexico — 11,482 people, 4368 HDD
- Bridgeton — 11,301 people, 3396 HDD
- Kearney — 11,215 people, 3465 HDD
- Smithville — 10,971 people, 4235 HDD
- Excelsior Springs — 10,727 people, 3465 HDD
- Bellefontaine Neighbors — 10,401 people, 3396 HDD
- Ellisville — 10,359 people, 3990 HDD
- Maryville — 10,193 people, 4125 HDD
- Kennett — 10,137 people, 2774 HDD
- Monett — 10,108 people, 3186 HDD