San Francisco / Vacaville
Vacaville has 102,596 residents (give or take 51) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=160XX00US0681554, checked 2026-10-19), about 3,435 people per square mile.
Vacaville is about 72 miles from the Census center point for San Francisco in a straight line and covers 29.87 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 Vacaville that is 95687 (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).
3,435 people per square mile puts Vacaville in suburban density, where the outdoor unit usually sits in a side yard and the noise is not an issue for neighbors.
Of the 34,298 occupied homes in Vacaville, 63% heat with natural gas, 0% with heating oil, 30% with electricity and 1% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=160XX00US0681554, checked 2026-10-19).
Gas heats 63% of Vacaville against electricity at 30%, and a cold-climate heat pump sized for this market replaces the gas system outright, so the usual quote is a whole-home install.
Vacaville has about the Solano County oil share of 0% and 2 points less electric heat than the county's 32% (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US06095, checked 2026-10-19).
Vacaville has 35,830 housing units, 1% built before 1940 and 39% before 1980, with 22% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US0681554, checked 2026-10-19).
Vacaville has 4 points fewer pre-1940 homes than Solano County as a whole (5%) and 3 points more homes built after 2000 than the county's 19% (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=050XX00US06095, checked 2026-10-19).
The median Vacaville home was built in 1985 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=160XX00US0681554, checked 2026-10-19) and the median home has 5.8 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=160XX00US0681554, checked 2026-10-19).
72% of Vacaville homes are single-family detached, 7% are in two- to four-unit buildings and 14% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=160XX00US0681554, checked 2026-10-19).
With 72% detached houses and 7% in small multi-family buildings, a Vacaville quote is usually one or two outdoor units with ducted or ductless heads sized room by room. With 32% of Vacaville homes rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US0681554, checked 2026-10-19), the landlord signs the quote in many of them.
No electric utility is on file for Vacaville on this door yet, so this page does not name one; the name on the bill decides which rebate path applies.
LADWP Consumer Rebate Program heat pump HVAC, run by LADWP, is a live program for California addresses and publishes its terms without one headline figure (registry row 24 verified 2026-10-14, https://www.ladwp.com/residential-services/assistance-programs/consumer-rebate-program, checked 2026-10-16); confirm eligibility for the Vacaville address before counting it. With 30% of Vacaville homes already on electric heat and 64% on gas, oil or propane, the row that applies depends on the name on the electric bill and the fuel coming out.
Median household income in Vacaville is $111,126 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=160XX00US0681554, 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: 27F. Source: ENERGY STAR Design Temperature Limit Reference Guide (2019 Edition), Solano 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 Solano County cold-day number a Vacaville 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 63% of Vacaville on gas and 30% already electric the two paths carry different rebate figures and different sizing.
Ask for the heat-loss calculation room by room; the median Vacaville home has 5.8 rooms and was built around 1985, 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 Vacaville. The public number is the number the contractor quotes from.
No local contractor is named on this door for Vacaville yet. A request from this page goes to the first licensed shop that takes the door.