San Francisco / Woodside
Woodside has 5,126 residents (give or take 41) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=160XX00US0686440, checked 2026-10-19), about 447 people per square mile.
Woodside is about 47 miles from the Census center point for San Francisco in a straight line and covers 11.466 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).
Woodside is spread out at 447 people per square mile across 11.466 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 1,784 occupied homes in Woodside, 68% heat with natural gas, 1% with heating oil, 16% with electricity and 10% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=160XX00US0686440, checked 2026-10-19).
Gas heats 68% of Woodside against electricity at 16%, and a cold-climate heat pump sized for this market replaces the gas system outright, so the usual quote is a whole-home install.
Woodside has about the San Mateo County oil share of 0% and 16 points less electric heat than the county's 32% (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US06081, checked 2026-10-19).
Woodside has 2,062 housing units, 17% built before 1940 and 68% before 1980, with 17% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US0686440, checked 2026-10-19).
Woodside has 8 points more pre-1940 homes than San Mateo County as a whole (9%) and 5 points more homes built after 2000 than the county's 12% (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=050XX00US06081, checked 2026-10-19). An older stock means more insulation upgrades before the heat pump goes in.
The median Woodside home was built in 1965 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=160XX00US0686440, checked 2026-10-19) and the median home has 7.3 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=160XX00US0686440, checked 2026-10-19).
96% of Woodside homes are single-family detached, 2% are in two- to four-unit buildings and 0% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=160XX00US0686440, checked 2026-10-19).
With 96% detached houses and 2% in small multi-family buildings, a Woodside quote is usually one or two outdoor units with ducted or ductless heads sized room by room. With 13% of Woodside homes rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US0686440, checked 2026-10-19), the landlord signs the quote in many of them.
Woodside has 41 points more detached houses than San Mateo County overall (55%) and 29 points fewer five-plus-unit buildings than the county's 29% (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=050XX00US06081, checked 2026-10-19).
Only 13% of Woodside homes are rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US0686440, checked 2026-10-19), so nearly every quote here is the resident talking to the installer directly, and the rebate goes to the person living in the house.
68% of Woodside homes were built before 1980 and only 17% in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US0686440, 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.
No electric utility is on file for Woodside on this door yet, so this page does not name one; the name on the bill decides which rebate path applies.
Median household income in Woodside is $250,001 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=160XX00US0686440, 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: 29F. Source: ENERGY STAR Design Temperature Limit Reference Guide (2019 Edition), San Mateo 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 29F figure is the San Mateo County cold-day number a Woodside heat pump is sized against, so ask the installer to show the system's heating output at 29F, not at the milder rating-label temperature.
Ask whether the quote is whole-home or partial-home, because with 68% of Woodside on gas and 16% already electric the two paths carry different rebate figures and different sizing.
Ask for the heat-loss calculation room by room; the median Woodside home has 7.3 rooms and was built around 1965, 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 Woodside. The public number is the number the contractor quotes from.
No local contractor is named on this door for Woodside yet. A request from this page goes to the first licensed shop that takes the door.