Chicago / Lake in the Hills
Lake in the Hills has 28,800 residents (give or take 51) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=160XX00US1741183, checked 2026-10-19), about 2,822 people per square mile.
Lake in the Hills is about 40 miles from the Census center point for Chicago in a straight line and covers 10.205 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 Lake in the Hills that is 60156 (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).
Of the 9,692 occupied homes in Lake in the Hills, 86% heat with natural gas, 0% with heating oil, 12% with electricity and 2% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=160XX00US1741183, checked 2026-10-19).
Gas heats 86% of Lake in the Hills against electricity at 12%, 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.
Lake in the Hills has about the McHenry County oil share of 0% and the same 12% electric share (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US17111, checked 2026-10-19).
Lake in the Hills has 9,952 housing units, 0% built before 1940 and 16% before 1980, with 26% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US1741183, checked 2026-10-19).
Lake in the Hills has 8 points fewer pre-1940 homes than McHenry County as a whole (8%) (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=050XX00US17111, checked 2026-10-19).
The median Lake in the Hills home was built in 1995 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=160XX00US1741183, checked 2026-10-19) and the median home has 6.5 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=160XX00US1741183, checked 2026-10-19).
72% of Lake in the Hills homes are single-family detached, 1% are in two- to four-unit buildings and 7% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=160XX00US1741183, checked 2026-10-19).
With 72% detached houses and 1% in small multi-family buildings, a Lake in the Hills quote is usually one or two outdoor units with ducted or ductless heads sized room by room. With 16% of Lake in the Hills homes rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US1741183, checked 2026-10-19), the landlord signs the quote in many of them.
Lake in the Hills has 5 points fewer detached houses than McHenry County overall (77%) (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=050XX00US17111, checked 2026-10-19).
No electric utility is on file for Lake in the Hills 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 Lake in the Hills address before counting it. With 12% of Lake in the Hills homes already on electric heat and 88% on gas, oil or propane, the row that applies depends on the name on the electric bill and the fuel coming out.
Median household income in Lake in the Hills is $117,151 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=160XX00US1741183, 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: -3F. Source: ENERGY STAR Design Temperature Limit Reference Guide (2019 Edition), McHenry 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 McHenry County cold-day number a Lake in the Hills 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 86% of Lake in the Hills on gas and 12% already electric the two paths carry different rebate figures and different sizing.
Ask for the heat-loss calculation room by room; the median Lake in the Hills home has 6.5 rooms and was built around 1995, 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 Lake in the Hills. The public number is the number the contractor quotes from.
No local contractor is named on this door for Lake in the Hills yet. A request from this page goes to the first licensed shop that takes the door.