San Francisco / Mountain View
Mountain View has 83,732 residents (give or take 46) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=160XX00US0649670, checked 2026-10-19), about 7,002 people per square mile.
Mountain View is about 57 miles from the Census center point for San Francisco in a straight line and covers 11.958 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 Mountain View that is 94040, 94041, 94043 (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).
Median household income in Mountain View is $189,917 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=160XX00US0649670, 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.
7,002 people per square mile puts Mountain View in suburban density, where the outdoor unit usually sits in a side yard and the noise is not an issue for neighbors.
27% of Mountain View homes are single-family detached, 7% are in two- to four-unit buildings and 49% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=160XX00US0649670, checked 2026-10-19).
With 49% of Mountain View homes in buildings of five or more units and 27% detached, the condo association usually decides where outdoor units can go, so that approval comes before the quote. With 61% of Mountain View homes rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US0649670, checked 2026-10-19), the landlord signs the quote in many of them.
Mountain View has 24 points fewer detached houses than Santa Clara County overall (51%) and 20 points more five-plus-unit buildings than the county's 29% (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=050XX00US06085, checked 2026-10-19).
With 61% of Mountain View homes rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US0649670, checked 2026-10-19), most heat pump quotes here are landlord-driven: the landlord signs the contract and picks the equipment, and the tenant sees the lower bill.
Of the 35,767 occupied homes in Mountain View, 57% heat with natural gas, 0% with heating oil, 40% with electricity and 1% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=160XX00US0649670, checked 2026-10-19).
Gas heats 57% of Mountain View against electricity at 40%, and a cold-climate heat pump sized for this market replaces the gas system outright, so the usual quote is a whole-home install.
Mountain View has about the Santa Clara County oil share of 0% and 4 points more electric heat than the county's 36% (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US06085, checked 2026-10-19).
No electric utility is on file for Mountain View on this door yet, so this page does not name one; the name on the bill decides which rebate path applies.
Mountain View has 39,458 housing units, 3% built before 1940 and 60% before 1980, with 22% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US0649670, checked 2026-10-19).
Mountain View tracks Santa Clara County on housing age, with the county at 5% pre-1940 and 20% post-2000 (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=050XX00US06085, checked 2026-10-19).
The median Mountain View home was built in 1975 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=160XX00US0649670, checked 2026-10-19) and the median home has 3.9 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=160XX00US0649670, checked 2026-10-19).
60% of Mountain View homes were built before 1980 and only 22% in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US0649670, checked 2026-10-19), so most of the stock predates modern insulation codes; the installer's heat-loss calculation, not a square-footage rule, decides the tonnage.
Heating design temperature: 27F. Source: ENERGY STAR Design Temperature Limit Reference Guide (2019 Edition), Santa Clara County row, 99% heating, PDF pages 11 to 13 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 27F figure is the Santa Clara County cold-day number a Mountain View heat pump is sized against, so ask the installer to show the system's heating output at 27F, not at the milder rating-label temperature.
Ask whether the quote is whole-home or partial-home, because with 57% of Mountain View on gas and 40% already electric the two paths carry different rebate figures and different sizing.
Ask for the heat-loss calculation room by room; the median Mountain View home has 3.9 rooms and was built around 1975, 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 Mountain View. The public number is the number the contractor quotes from.
No local contractor is named on this door for Mountain View yet. A request from this page goes to the first licensed shop that takes the door.