Harrisburg / Lewistown
Lewistown has 8,479 residents (give or take 19) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=160XX00US4243000, checked 2026-10-19), about 4,177 people per square mile.
Lewistown is about 42 miles from the Census center point for Harrisburg in a straight line and covers 2.03 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).
Median household income in Lewistown is $40,236 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=160XX00US4243000, 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.
4,177 people per square mile puts Lewistown in suburban density, where the outdoor unit usually sits in a side yard and the noise is not an issue for neighbors.
44% of Lewistown homes are single-family detached, 17% are in two- to four-unit buildings and 16% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=160XX00US4243000, checked 2026-10-19).
60% of Lewistown homes are rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US4243000, checked 2026-10-19), so beside the 44% detached houses there is a real share of jobs where the landlord, not the resident, signs the quote.
Lewistown has 26 points fewer detached houses than Mifflin County overall (70%) and 10 points more five-plus-unit buildings than the county's 6% (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=050XX00US42087, checked 2026-10-19).
With 60% of Lewistown homes rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US4243000, 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 3,802 occupied homes in Lewistown, 40% heat with natural gas, 28% with heating oil, 28% with electricity and 1% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=160XX00US4243000, checked 2026-10-19).
Gas leads in Lewistown at 40%, but 29% of homes still burn delivered oil or propane, and those 1,103 or so homes are where a heat pump pays back fastest.
Lewistown has 13 points less oil heat than Mifflin County as a whole, where 41% of homes burn oil, and 2 points more electric heat than the county's 26% (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US42087, checked 2026-10-19).
No electric utility is on file for Lewistown on this door yet, so this page does not name one; the name on the bill decides which rebate path applies.
Lewistown has 4,522 housing units, 55% built before 1940 and 93% before 1980, with 2% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US4243000, checked 2026-10-19).
Lewistown has 25 points more pre-1940 homes than Mifflin County as a whole (30%) and 8 points fewer homes built after 2000 than the county's 10% (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=050XX00US42087, checked 2026-10-19). An older stock means more insulation upgrades before the heat pump goes in.
The median Lewistown home was built in 1938 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=160XX00US4243000, checked 2026-10-19) and the median home has 5.7 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=160XX00US4243000, checked 2026-10-19).
55% of Lewistown homes were built before 1940 and 93% before 1980 (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US4243000, 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: 7F. Source: ENERGY STAR Design Temperature Limit Reference Guide (2019 Edition), Mifflin County row, 99% heating, PDF pages 102 to 105 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 Mifflin County cold-day number a Lewistown 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 whether the quote is whole-home or partial-home, because with 40% of Lewistown on gas and 28% already electric the two paths carry different rebate figures and different sizing.
Ask for the heat-loss calculation room by room; a Lewistown house from before 1940 (55% of the 4,522 units) rarely matches a square-footage rule of thumb.
The form on this page is the follow-up for Lewistown. The public number is the number the contractor quotes from.
No local contractor is named on this door for Lewistown yet. A request from this page goes to the first licensed shop that takes the door.