Chicago / Carbondale
Carbondale has 22,158 residents (give or take 53) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=160XX00US1711163, checked 2026-10-19), about 1,268 people per square mile.
Carbondale is about 296 miles from the Census center point for Chicago in a straight line and covers 17.479 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 Carbondale that is 62901 (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 Carbondale is $32,128 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=160XX00US1711163, 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.
32% of Carbondale homes are single-family detached, 16% are in two- to four-unit buildings and 43% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=160XX00US1711163, checked 2026-10-19).
With 43% of Carbondale homes in buildings of five or more units and 32% detached, the condo association usually decides where outdoor units can go, so that approval comes before the quote. With 74% of Carbondale homes rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US1711163, checked 2026-10-19), the landlord signs the quote in many of them.
Carbondale has 20 points fewer detached houses than Jackson County overall (52%) and 22 points more five-plus-unit buildings than the county's 21% (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=050XX00US17077, checked 2026-10-19).
With 74% of Carbondale homes rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US1711163, checked 2026-10-19), most heat pump quotes here are landlord-driven: the landlord signs the contract and picks the equipment, and the tenant sees the lower bill.
Of the 9,714 occupied homes in Carbondale, 30% heat with natural gas, 0% with heating oil, 66% with electricity and 2% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=160XX00US1711163, checked 2026-10-19).
Electricity already heats 66% of Carbondale homes, ahead of gas at 30%, and a home on electric baseboard sees the biggest bill change from a heat pump because it replaces resistance heat one for one.
Carbondale has about the Jackson County oil share of 0% and 9 points more electric heat than the county's 57% (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US17077, checked 2026-10-19).
No electric utility is on file for Carbondale on this door yet, so this page does not name one; the name on the bill decides which rebate path applies.
Ameren Illinois Instant Incentives (ducted ASHP), run by Ameren Illinois, is a live program for Illinois addresses and lists a standard figure of $900 (registry row 45 verified 2026-10-15, https://amerenillinoissavings.com/residential/ducted-air-source-heat-pump/, checked 2026-10-16); confirm eligibility for the Carbondale address before counting it. With 66% of Carbondale homes already on electric heat and 32% on gas, oil or propane, the row that applies depends on the name on the electric bill and the fuel coming out.
Carbondale has 12,094 housing units, 5% built before 1940 and 58% before 1980, with 20% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US1711163, checked 2026-10-19).
Carbondale has 5 points fewer pre-1940 homes than Jackson County as a whole (10%) (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=050XX00US17077, checked 2026-10-19).
The median Carbondale home was built in 1976 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=160XX00US1711163, 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=160XX00US1711163, checked 2026-10-19).
Heating design temperature: 7F. Source: ENERGY STAR Design Temperature Limit Reference Guide (2019 Edition), Jackson County row, 99% heating, PDF pages 29 to 33 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 7F figure is the Jackson County cold-day number a Carbondale heat pump is sized against, so ask the installer to show the system's heating output at 7F, not at the milder rating-label temperature.
Ask for the heat-loss calculation room by room; the median Carbondale home has 4.3 rooms and was built around 1976, 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 Carbondale. The public number is the number the contractor quotes from.
No local contractor is named on this door for Carbondale yet. A request from this page goes to the first licensed shop that takes the door.