Portland / Rockport
Rockport has 3,675 residents (give or take 18) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=060XX00US2301363660, checked 2026-10-19), about 170 people per square mile.
Rockport is about 66 miles from the Census center point for Portland in a straight line and covers 21.641 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 Rockport that is 04856 (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).
Rockport is spread out at 170 people per square mile across 21.641 square miles of land, so a long refrigerant line run between the outdoor unit and the farthest indoor head is the sizing question an installer checks first.
Of the 1,498 occupied homes in Rockport, 0% heat with natural gas, 51% with heating oil, 12% with electricity and 29% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=060XX00US2301363660, checked 2026-10-19).
Heating oil is the largest single fuel in Rockport at 51%, ahead of propane at 29%, so the usual job here is an oil boiler or furnace coming out and a cold-climate heat pump going in, with the oil tank removed.
Rockport has 5 points less oil heat than Knox County as a whole, where 56% of homes burn oil, and 1 points more electric heat than the county's 11% (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US23013, checked 2026-10-19).
Rockport has 2,018 housing units, 30% built before 1940 and 53% before 1980, with 23% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=060XX00US2301363660, checked 2026-10-19).
Rockport has 3 points fewer pre-1940 homes than Knox County as a whole (33%) and 5 points more homes built after 2000 than the county's 18% (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=050XX00US23013, checked 2026-10-19).
The median Rockport home was built in 1978 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=060XX00US2301363660, checked 2026-10-19) and the median home has 6.9 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=060XX00US2301363660, checked 2026-10-19).
90% of Rockport homes are single-family detached, 6% are in two- to four-unit buildings and 0% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=060XX00US2301363660, checked 2026-10-19).
With 90% detached houses and 6% in small multi-family buildings, a Rockport quote is usually one or two outdoor units with ducted or ductless heads sized room by room. With 15% of Rockport homes rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=060XX00US2301363660, checked 2026-10-19), the landlord signs the quote in many of them.
Rockport has 11 points more detached houses than Knox County overall (79%) (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=050XX00US23013, checked 2026-10-19).
Only 15% of Rockport homes are rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=060XX00US2301363660, checked 2026-10-19), so nearly every quote here is the resident talking to the installer directly, and the rebate goes to the person living in the house.
30% of Rockport homes were built before 1940 and 53% before 1980 (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=060XX00US2301363660, 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.
No electric utility is on file for Rockport on this door yet, so this page does not name one; the name on the bill decides which rebate path applies.
Efficiency Maine whole-home heat pump rebate, run by Efficiency Maine, is a live program for Maine addresses and lists a standard figure of $3,000 (registry row 7 verified 2026-10-15, https://www.efficiencymaine.com/whole-home-heat-pump-rebates/, checked 2026-10-16); confirm eligibility for the Rockport address before counting it. With 12% of Rockport homes already on electric heat and 80% 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 Rockport is $86,979 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=060XX00US2301363660, 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: 1F. Source: ENERGY STAR Design Temperature Limit Reference Guide (2019 Edition), Knox County row, 99% heating, PDF pages 54 to 55 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 1F figure is the Knox County cold-day number a Rockport heat pump is sized against, so ask the installer to show the system's heating output at 1F, not at the milder rating-label temperature.
Ask what happens to the oil tank, since 51% of the 1,498 occupied Rockport homes have one and removal is usually a separate line on the quote.
Ask for the heat-loss calculation room by room; a Rockport house from before 1940 (30% of the 2,018 units) rarely matches a square-footage rule of thumb.
The form on this page is the follow-up for Rockport. The public number is the number the contractor quotes from.
No local contractor is named on this door for Rockport yet. A request from this page goes to the first licensed shop that takes the door.