Harrisburg / Danville
Danville has 4,217 residents (give or take 21) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=160XX00US4218136, checked 2026-10-19), about 2,712 people per square mile.
Danville is about 49 miles from the Census center point for Harrisburg in a straight line and covers 1.555 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 Danville is $59,219 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=160XX00US4218136, 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.
43% of Danville homes are single-family detached, 18% are in two- to four-unit buildings and 12% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=160XX00US4218136, checked 2026-10-19).
57% of Danville homes are rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US4218136, checked 2026-10-19), so beside the 43% detached houses there is a real share of jobs where the landlord, not the resident, signs the quote.
Danville has 25 points fewer detached houses than Montour County overall (68%) (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=050XX00US42093, checked 2026-10-19).
57% of Danville homes are rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US4218136, 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 2,338 occupied homes in Danville, 47% heat with natural gas, 14% with heating oil, 34% with electricity and 4% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=160XX00US4218136, checked 2026-10-19).
Gas leads in Danville at 47%, but 19% of homes still burn delivered oil or propane, and those 444 or so homes are where a heat pump pays back fastest.
Danville has 6 points less oil heat than Montour County as a whole, where 20% of homes burn oil, and 6 points less electric heat than the county's 40% (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US42093, checked 2026-10-19).
No electric utility is on file for Danville on this door yet, so this page does not name one; the name on the bill decides which rebate path applies.
Danville has 2,488 housing units, 37% built before 1940 and 72% before 1980, with 7% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US4218136, checked 2026-10-19).
Danville has 15 points more pre-1940 homes than Montour County as a whole (22%) and 9 points fewer homes built after 2000 than the county's 16% (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=050XX00US42093, checked 2026-10-19). An older stock means more insulation upgrades before the heat pump goes in.
The median Danville home was built in 1957 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=160XX00US4218136, checked 2026-10-19) and the median home has 5.3 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=160XX00US4218136, checked 2026-10-19).
37% of Danville homes were built before 1940 and 72% before 1980 (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US4218136, 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), Montour 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 Montour County cold-day number a Danville 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 47% of Danville on gas and 34% already electric the two paths carry different rebate figures and different sizing.
Ask for the heat-loss calculation room by room; a Danville house from before 1940 (37% of the 2,488 units) rarely matches a square-footage rule of thumb.
The form on this page is the follow-up for Danville. The public number is the number the contractor quotes from.
No local contractor is named on this door for Danville yet. A request from this page goes to the first licensed shop that takes the door.