Utah: 67 cities covered
Across 67 Utah cities with a positive case for switching, the average incremental payback is about 58.8 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.
- Salt Lake City — 217,783 people, 4667 HDD
- West Valley City — 138,144 people, 4667 HDD
- West Jordan — 116,688 people, 4667 HDD
- Provo — 115,479 people, 5203 HDD
- St. George — 106,288 people, 3006 HDD
- Orem — 96,646 people, 5203 HDD
- Lehi — 93,446 people, 5203 HDD
- Sandy — 92,840 people, 4667 HDD
- Ogden — 88,656 people, 4722 HDD
- South Jordan — 86,156 people, 4667 HDD
- Layton — 84,348 people, 5273 HDD
- Millcreek — 64,217 people, 4667 HDD
- Herriman — 62,352 people, 5289 HDD
- Eagle Mountain — 60,575 people, 5203 HDD
- Taylorsville — 57,819 people, 4667 HDD
- Saratoga Springs — 57,411 people, 5203 HDD
- Logan — 56,770 people, 6351 HDD
- Murray — 50,817 people, 4667 HDD
- Draper — 50,166 people, 4667 HDD
- Spanish Fork — 47,809 people, 5203 HDD
- Riverton — 46,680 people, 4667 HDD
- Bountiful — 45,024 people, 4667 HDD
- American Fork — 41,298 people, 5203 HDD
- Tooele — 40,919 people, 5289 HDD
- Cedar City — 40,885 people, 5288 HDD
- Kearns — 39,398 people, 4667 HDD
- Syracuse — 38,999 people, 5273 HDD
- Roy — 38,719 people, 4722 HDD
- Pleasant Grove — 38,127 people, 5203 HDD
- Midvale — 36,219 people, 4667 HDD
- Springville — 36,027 people, 5203 HDD
- Washington — 35,501 people, 3006 HDD
- Clearfield — 34,778 people, 5273 HDD
- Kaysville — 33,252 people, 5273 HDD
- Cottonwood Heights — 32,437 people, 4667 HDD
- Magna — 31,381 people, 4667 HDD
- Holladay — 30,588 people, 4667 HDD
- South Salt Lake — 26,561 people, 4667 HDD
- Farmington — 26,163 people, 5273 HDD
- Hurricane — 24,753 people, 3006 HDD
- Payson — 24,666 people, 5203 HDD
- West Haven — 24,617 people, 4722 HDD
- Clinton — 23,728 people, 4722 HDD
- North Salt Lake — 23,593 people, 4667 HDD
- North Ogden — 22,908 people, 4722 HDD
- Highland — 21,146 people, 5203 HDD
- Brigham City — 20,319 people, 4861 HDD
- Bluffdale — 19,393 people, 4667 HDD
- Heber — 19,042 people, 6644 HDD
- Santaquin — 18,394 people, 5203 HDD
- South Ogden — 17,749 people, 4722 HDD
- Centerville — 16,560 people, 4667 HDD
- Vineyard — 16,077 people, 5203 HDD
- Grantsville — 15,682 people, 5289 HDD
- Smithfield — 15,018 people, 6351 HDD
- Mapleton — 14,812 people, 5203 HDD
- West Point — 12,726 people, 5273 HDD
- Tremonton — 12,677 people, 4861 HDD
- Lindon — 12,018 people, 5203 HDD
- North Logan — 11,727 people, 6351 HDD
- Woods Cross — 11,493 people, 4667 HDD
- Pleasant View — 11,337 people, 4722 HDD
- Salem — 11,283 people, 5203 HDD
- Ivins — 11,108 people, 3006 HDD
- Hyrum — 11,043 people, 6351 HDD
- Vernal — 10,698 people, 6018 HDD
- Alpine — 10,548 people, 5203 HDD