Harrisburg / Lock Haven
Lock Haven has 8,447 residents (give or take 30) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=160XX00US4244128, checked 2026-10-19), about 3,384 people per square mile.
Lock Haven is about 67 miles from the Census center point for Harrisburg in a straight line and covers 2.496 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 Lock Haven is $46,102 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=160XX00US4244128, 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.
3,384 people per square mile puts Lock Haven in suburban density, where the outdoor unit usually sits in a side yard and the noise is not an issue for neighbors.
35% of Lock Haven homes are single-family detached, 41% are in two- to four-unit buildings and 18% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=160XX00US4244128, checked 2026-10-19).
A two- or three-family building is the common Lock Haven case at 41% of the stock against 35% detached houses, and each unit usually gets its own small outdoor unit and its own rebate account rather than one big system for the building. With 61% of Lock Haven homes rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US4244128, checked 2026-10-19), the landlord signs the quote in many of them.
Lock Haven has 36 points fewer detached houses than Clinton County overall (71%) and 12 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=050XX00US42035, checked 2026-10-19).
With 61% of Lock Haven homes rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US4244128, 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 3,415 occupied homes in Lock Haven, 39% heat with natural gas, 18% with heating oil, 39% with electricity and 2% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=160XX00US4244128, checked 2026-10-19).
Gas leads in Lock Haven at 39%, but 20% of homes still burn delivered oil or propane, and those 683 or so homes are where a heat pump pays back fastest.
Lock Haven has 17 points less oil heat than Clinton County as a whole, where 35% of homes burn oil, and 11 points more electric heat than the county's 28% (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US42035, checked 2026-10-19).
No electric utility is on file for Lock Haven on this door yet, so this page does not name one; the name on the bill decides which rebate path applies.
Lock Haven has 3,723 housing units, 37% built before 1940 and 82% before 1980, with 9% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US4244128, checked 2026-10-19).
Lock Haven has 9 points more pre-1940 homes than Clinton County as a whole (28%) and 4 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=050XX00US42035, checked 2026-10-19). An older stock means more insulation upgrades before the heat pump goes in.
The median Lock Haven home was built in 1958 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=160XX00US4244128, 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=160XX00US4244128, checked 2026-10-19).
37% of Lock Haven homes were built before 1940 and 82% before 1980 (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US4244128, 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), Clinton 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 Clinton County cold-day number a Lock Haven 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 39% of Lock Haven on gas and 39% already electric the two paths carry different rebate figures and different sizing.
Ask for the heat-loss calculation room by room; a Lock Haven house from before 1940 (37% of the 3,723 units) rarely matches a square-footage rule of thumb.
The form on this page is the follow-up for Lock Haven. The public number is the number the contractor quotes from.
No local contractor is named on this door for Lock Haven yet. A request from this page goes to the first licensed shop that takes the door.