San Francisco / Rio Vista
Rio Vista has 10,102 residents (give or take 57) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=160XX00US0660984, checked 2026-10-19), about 1,531 people per square mile.
Rio Vista is about 79 miles from the Census center point for San Francisco in a straight line and covers 6.6 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).
Of the 5,013 occupied homes in Rio Vista, 78% heat with natural gas, 0% with heating oil, 18% with electricity and 0% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=160XX00US0660984, checked 2026-10-19).
Gas heats 78% of Rio Vista against electricity at 18%, and a cold-climate heat pump sized for this market replaces the gas system outright, so the usual quote is a whole-home install.
Rio Vista has about the Solano County oil share of 0% and 14 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).
Rio Vista has 5,135 housing units, 5% built before 1940 and 21% before 1980, with 55% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US0660984, checked 2026-10-19).
Rio Vista has 36 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 Rio Vista home was built in 2002 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=160XX00US0660984, checked 2026-10-19) and the median home has 5.4 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=160XX00US0660984, checked 2026-10-19).
89% of Rio Vista homes are single-family detached, 3% are in two- to four-unit buildings and 6% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=160XX00US0660984, checked 2026-10-19).
With 89% detached houses and 3% in small multi-family buildings, a Rio Vista quote is usually one or two outdoor units with ducted or ductless heads sized room by room. With 16% of Rio Vista homes rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US0660984, checked 2026-10-19), the landlord signs the quote in many of them.
Rio Vista has 17 points more detached houses than Solano County overall (72%) (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=050XX00US06095, checked 2026-10-19).
55% of Rio Vista housing was built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US0660984, checked 2026-10-19), and homes that recent usually meet the insulation codes in place at the time, so a heat pump sized to the floor plan lands closer to the real load than it would in an older neighborhood.
No electric utility is on file for Rio Vista 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 Rio Vista address before counting it. With 18% of Rio Vista homes already on electric heat and 78% 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 Rio Vista is $89,306 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=160XX00US0660984, 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 Rio Vista 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 78% of Rio Vista on gas and 18% already electric the two paths carry different rebate figures and different sizing.
Ask for the heat-loss calculation room by room; the median Rio Vista home has 5.4 rooms and was built around 2002, 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 Rio Vista. The public number is the number the contractor quotes from.
No local contractor is named on this door for Rio Vista yet. A request from this page goes to the first licensed shop that takes the door.