Phoenix / Sierra Vista
Sierra Vista has 45,155 residents (give or take 38) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=160XX00US0466820, checked 2026-10-19), about 296 people per square mile.
Sierra Vista is about 173 miles from the Census center point for Phoenix in a straight line and covers 152.444 square miles of land (Census 2024 Gazetteer internal points and land area, https://www2.census.gov/geo/docs/maps-data/data/gazetteer/2024_Gazetteer/, checked 2026-10-19).
The quote form takes a ZIP code; for Sierra Vista that is 85613, 85635 (Census 2020 ZCTA to county subdivision and ZCTA to place relationship files, ZIP areas at least 20% inside the town, https://www2.census.gov/geo/docs/maps-data/data/rel2020/zcta520/tab20_zcta520_cousub20_natl.txt and https://www2.census.gov/geo/docs/maps-data/data/rel2020/zcta520/tab20_zcta520_place20_natl.txt, checked 2026-10-19).
Sierra Vista is spread out at 296 people per square mile across 152.444 square miles of land, so a long refrigerant line run between the outdoor unit and the farthest indoor head is the sizing question an installer checks first.
Of the 18,862 occupied homes in Sierra Vista, 64% heat with natural gas, 0% with heating oil, 33% with electricity and 1% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=160XX00US0466820, checked 2026-10-19).
Gas heats 64% of Sierra Vista against electricity at 33%, so most quotes here are a partial-home system that carries the shoulder seasons and the summer while the gas furnace handles the coldest nights, or a whole-home system when the house is ready for it.
Sierra Vista has about the Cochise County oil share of 0% and 2 points less electric heat than the county's 35% (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US04003, checked 2026-10-19).
Sierra Vista has 20,662 housing units, 1% built before 1940 and 29% before 1980, with 33% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US0466820, checked 2026-10-19).
Sierra Vista has 6 points fewer pre-1940 homes than Cochise County as a whole (7%) and 5 points more homes built after 2000 than the county's 28% (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=050XX00US04003, checked 2026-10-19).
The median Sierra Vista home was built in 1990 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=160XX00US0466820, checked 2026-10-19) and the median home has 5.5 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=160XX00US0466820, checked 2026-10-19).
67% of Sierra Vista homes are single-family detached, 4% are in two- to four-unit buildings and 19% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=160XX00US0466820, checked 2026-10-19).
38% of Sierra Vista homes are rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US0466820, checked 2026-10-19), so beside the 67% detached houses there is a real share of jobs where the landlord, not the resident, signs the quote.
Sierra Vista has 10 points more five-plus-unit buildings than the county's 9% (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=050XX00US04003, checked 2026-10-19).
No electric utility is on file for Sierra Vista on this door yet, so this page does not name one; the name on the bill decides which rebate path applies.
SRP Cool Cash variable-capacity heat pump rebate, run by SRP, is a live program for Arizona addresses and covers qualifying equipment at $1,000 per system (registry row 32 verified 2026-10-14, https://www.srpnet.com/energy-savings-rebates/home/rebates/air-conditioner, checked 2026-10-16); confirm eligibility for the Sierra Vista address before counting it. With 33% of Sierra Vista homes already on electric heat and 65% on gas, oil or propane, the row that applies depends on the name on the electric bill and the fuel coming out.
Efficiency Arizona HEAR (Home Efficiency and Electrification Rebates): $8,000 usd_max (https://efficiencyarizona.com/, checked 2026-10-16); confirm eligibility for the address.
Median household income in Sierra Vista is $70,291 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=160XX00US0466820, checked 2026-10-19); many state and utility heat pump rebate programs set higher incentive tiers for income-qualifying households, so the household income on the application, not the town median, decides which level applies.
Heating design temperature: 16F. Source: ENERGY STAR Design Temperature Limit Reference Guide (2019 Edition), Cochise County row, 99% heating, PDF pages 7 to 8 of 141 (Revised 11/11/2020), https://www.energystar.gov/sites/default/files/Design%20Temperature%20Limit%20Reference%20Guide%20(2019%20Ed)%20-%20ENERGY%20STAR%20Single-Family%20New%20Homes_Rev11.pdf, fetched 2026-10-19, 99%.
That 16F figure is the Cochise County cold-day number a Sierra Vista heat pump is sized against, so ask the installer to show the system's heating output at 16F, not at the milder rating-label temperature.
Ask whether the quote is whole-home or partial-home, because with 64% of Sierra Vista on gas and 33% already electric the two paths carry different rebate figures and different sizing.
Ask for the heat-loss calculation room by room; the median Sierra Vista home has 5.5 rooms and was built around 1990, and the count of heads and the tonnage follow the rooms and the insulation, not the square footage.
The form on this page is the follow-up for Sierra Vista. The public number is the number the contractor quotes from.
No local contractor is named on this door for Sierra Vista yet. A request from this page goes to the first licensed shop that takes the door.