Chicago / Forest Park
Forest Park has 13,943 residents (give or take 29) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=160XX00US1726935, checked 2026-10-19), about 5,805 people per square mile.
Forest Park is about 7 miles from the Census center point for Chicago in a straight line and covers 2.402 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 Forest Park that is 60130 (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 Forest Park is $77,221 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=160XX00US1726935, 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.
5,805 people per square mile puts Forest Park in suburban density, where the outdoor unit usually sits in a side yard and the noise is not an issue for neighbors.
29% of Forest Park homes are single-family detached, 23% are in two- to four-unit buildings and 41% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=160XX00US1726935, checked 2026-10-19).
With 41% of Forest Park homes in buildings of five or more units and 29% detached, the condo association usually decides where outdoor units can go, so that approval comes before the quote. With 47% of Forest Park homes rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US1726935, checked 2026-10-19), the landlord signs the quote in many of them.
Forest Park has 11 points fewer detached houses than Cook County overall (40%) (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=050XX00US17031, checked 2026-10-19).
47% of Forest Park homes are rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US1726935, 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 7,085 occupied homes in Forest Park, 75% heat with natural gas, 0% with heating oil, 23% with electricity and 1% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=160XX00US1726935, checked 2026-10-19).
Gas heats 75% of Forest Park against electricity at 23%, 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.
Forest Park has about the Cook County oil share of 0% and 7 points more electric heat than the county's 16% (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US17031, checked 2026-10-19).
No electric utility is on file for Forest Park 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 Forest Park address before counting it. With 23% of Forest Park homes already on electric heat and 76% on gas, oil or propane, the row that applies depends on the name on the electric bill and the fuel coming out.
Forest Park has 7,649 housing units, 48% built before 1940 and 89% before 1980, with 7% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US1726935, checked 2026-10-19).
Forest Park has 20 points more pre-1940 homes than Cook County as a whole (28%) and 6 points fewer homes built after 2000 than the county's 13% (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=050XX00US17031, checked 2026-10-19). An older stock means more insulation upgrades before the heat pump goes in.
The median Forest Park home was built in 1949 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=160XX00US1726935, checked 2026-10-19) and the median home has 4.9 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=160XX00US1726935, checked 2026-10-19).
48% of Forest Park homes were built before 1940 and 89% before 1980 (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US1726935, checked 2026-10-19), so insulation is the first sizing question: an older home leaks more heat per square foot, and the installer runs a room-by-room heat-loss calculation to size the system for what the walls and windows actually hold in, not just the floor plan.
Heating design temperature: -3F. Source: ENERGY STAR Design Temperature Limit Reference Guide (2019 Edition), Cook 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 -3F figure is the Cook County cold-day number a Forest Park heat pump is sized against, so ask the installer to show the system's heating output at -3F, not at the milder rating-label temperature.
Ask whether the quote is whole-home or partial-home, because with 75% of Forest Park on gas and 23% already electric the two paths carry different rebate figures and different sizing.
Ask for the heat-loss calculation room by room; a Forest Park house from before 1940 (48% of the 7,649 units) rarely matches a square-footage rule of thumb.
The form on this page is the follow-up for Forest Park. The public number is the number the contractor quotes from.
No local contractor is named on this door for Forest Park yet. A request from this page goes to the first licensed shop that takes the door.