San Francisco / Cambrian Park
Cambrian Park has 3,494 residents (give or take 548) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=160XX00US0610088, checked 2026-10-19), about 6,045 people per square mile.
Cambrian Park is about 69 miles from the Census center point for San Francisco in a straight line and covers 0.578 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).
6,045 people per square mile puts Cambrian Park in suburban density, where the outdoor unit usually sits in a side yard and the noise is not an issue for neighbors.
Of the 1,227 occupied homes in Cambrian Park, 77% heat with natural gas, 1% with heating oil, 17% with electricity and 3% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=160XX00US0610088, checked 2026-10-19).
Gas heats 77% of Cambrian Park against electricity at 17%, and a cold-climate heat pump sized for this market replaces the gas system outright, so the usual quote is a whole-home install.
Cambrian Park has about the Santa Clara County oil share of 0% and 19 points less 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).
Cambrian Park has 1,238 housing units, 2% built before 1940 and 84% before 1980, with 11% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US0610088, checked 2026-10-19).
Cambrian Park has 3 points fewer pre-1940 homes than Santa Clara County as a whole (5%) and 9 points fewer homes built after 2000 than the county's 20% (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=050XX00US06085, checked 2026-10-19).
The median Cambrian Park home was built in 1956 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=160XX00US0610088, checked 2026-10-19) and the median home has 6.1 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=160XX00US0610088, checked 2026-10-19).
96% of Cambrian Park homes are single-family detached, 0% are in two- to four-unit buildings and 1% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=160XX00US0610088, checked 2026-10-19).
With 96% detached houses and 0% in small multi-family buildings, a Cambrian Park quote is usually one or two outdoor units with ducted or ductless heads sized room by room. With 30% of Cambrian Park homes rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US0610088, checked 2026-10-19), the landlord signs the quote in many of them.
Cambrian Park has 45 points more detached houses than Santa Clara County overall (51%) and 28 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=050XX00US06085, checked 2026-10-19).
84% of Cambrian Park homes were built before 1980 and only 11% in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US0610088, 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 Cambrian Park 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 Cambrian Park is $192,731 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=160XX00US0610088, 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), 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 Cambrian Park 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 77% of Cambrian Park on gas and 17% already electric the two paths carry different rebate figures and different sizing.
Ask for the heat-loss calculation room by room; the median Cambrian Park home has 6.1 rooms and was built around 1956, 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 Cambrian Park. The public number is the number the contractor quotes from.
No local contractor is named on this door for Cambrian Park yet. A request from this page goes to the first licensed shop that takes the door.