St. Louis / Kirkwood
Kirkwood has 29,363 residents (give or take 40) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=160XX00US2939044, checked 2026-10-19), about 3,198 people per square mile.
Kirkwood is about 10 miles from the Census center point for St. Louis in a straight line and covers 9.182 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 Kirkwood that is 63122 (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).
3,198 people per square mile puts Kirkwood in suburban density, where the outdoor unit usually sits in a side yard and the noise is not an issue for neighbors.
Of the 11,992 occupied homes in Kirkwood, 75% heat with natural gas, 0% with heating oil, 22% with electricity and 1% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=160XX00US2939044, checked 2026-10-19).
Gas heats 75% of Kirkwood against electricity at 22%, so most quotes here are a partial-home system that carries the shoulder seasons and the summer while the gas furnace handles the coldest nights, or a whole-home system when the house is ready for it.
Kirkwood has about the St. Louis County oil share of 0% and 1 points less electric heat than the county's 23% (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US29189, checked 2026-10-19).
Kirkwood has 12,978 housing units, 17% built before 1940 and 70% before 1980, with 19% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US2939044, checked 2026-10-19).
Kirkwood has 7 points more pre-1940 homes than St. Louis County as a whole (10%) and 8 points more homes built after 2000 than the county's 11% (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=050XX00US29189, checked 2026-10-19). An older stock means more insulation upgrades before the heat pump goes in.
The median Kirkwood home was built in 1962 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=160XX00US2939044, checked 2026-10-19) and the median home has 6.3 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=160XX00US2939044, checked 2026-10-19).
75% of Kirkwood homes are single-family detached, 5% are in two- to four-unit buildings and 18% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=160XX00US2939044, checked 2026-10-19).
With 75% detached houses and 5% in small multi-family buildings, a Kirkwood quote is usually one or two outdoor units with ducted or ductless heads sized room by room. With 23% of Kirkwood homes rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US2939044, checked 2026-10-19), the landlord signs the quote in many of them.
70% of Kirkwood homes were built before 1980 and only 19% in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US2939044, 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 Kirkwood 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 Kirkwood is $121,270 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=160XX00US2939044, 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: 2F. Source: ENERGY STAR Design Temperature Limit Reference Guide (2019 Edition), St. Louis County row, 99% heating, PDF pages 68 to 73 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 2F figure is the St. Louis County cold-day number a Kirkwood heat pump is sized against, so ask the installer to show the system's heating output at 2F, not at the milder rating-label temperature.
Ask whether the quote is whole-home or partial-home, because with 75% of Kirkwood on gas and 22% already electric the two paths carry different rebate figures and different sizing.
Ask for the heat-loss calculation room by room; the median Kirkwood home has 6.3 rooms and was built around 1962, 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 Kirkwood. The public number is the number the contractor quotes from.
No local contractor is named on this door for Kirkwood yet. A request from this page goes to the first licensed shop that takes the door.