San Francisco / San Pablo
San Pablo has 31,720 residents (give or take 42) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=160XX00US0668294, checked 2026-10-19), about 12,088 people per square mile.
San Pablo is about 41 miles from the Census center point for San Francisco in a straight line and covers 2.624 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 San Pablo that is 94806 (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 San Pablo is $79,478 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=160XX00US0668294, 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.
At 12,088 people per square mile, San Pablo is dense enough that noise setback rules and outdoor-unit placement on a small lot are the first questions the installer works through.
45% of San Pablo homes are single-family detached, 12% are in two- to four-unit buildings and 25% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=160XX00US0668294, checked 2026-10-19).
58% of San Pablo homes are rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US0668294, checked 2026-10-19), so beside the 45% detached houses there is a real share of jobs where the landlord, not the resident, signs the quote.
San Pablo has 22 points fewer detached houses than Contra Costa County overall (67%) (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=050XX00US06013, checked 2026-10-19).
58% of San Pablo homes are rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US0668294, checked 2026-10-19), so the market splits between resident-led jobs where the occupant picks the system and landlord-led jobs where they do not, and the rebate paperwork differs.
Of the 9,743 occupied homes in San Pablo, 63% heat with natural gas, 0% with heating oil, 29% with electricity and 3% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=160XX00US0668294, checked 2026-10-19).
Gas heats 63% of San Pablo against electricity at 29%, and a cold-climate heat pump sized for this market replaces the gas system outright, so the usual quote is a whole-home install.
San Pablo has about the Contra Costa County oil share of 0% and 1 points more electric heat than the county's 28% (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US06013, checked 2026-10-19).
No electric utility is on file for San Pablo 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 San Pablo address before counting it. With 29% of San Pablo homes already on electric heat and 66% on gas, oil or propane, the row that applies depends on the name on the electric bill and the fuel coming out.
San Pablo has 9,943 housing units, 6% built before 1940 and 64% before 1980, with 15% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US0668294, checked 2026-10-19).
San Pablo has 4 points fewer homes built after 2000 than the county's 19% (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=050XX00US06013, checked 2026-10-19).
The median San Pablo home was built in 1969 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=160XX00US0668294, checked 2026-10-19) and the median home has 4.3 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=160XX00US0668294, checked 2026-10-19).
64% of San Pablo homes were built before 1980 and only 15% in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US0668294, 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), Contra Costa 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 Contra Costa County cold-day number a San Pablo 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 San Pablo on gas and 29% already electric the two paths carry different rebate figures and different sizing.
Ask for the heat-loss calculation room by room; the median San Pablo home has 4.3 rooms and was built around 1969, 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 San Pablo. The public number is the number the contractor quotes from.
No local contractor is named on this door for San Pablo yet. A request from this page goes to the first licensed shop that takes the door.