Hempstead / Great Neck
Great Neck is about 9 miles from the Census center point for Hempstead in a straight line and covers 1.324 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).
Great Neck has 11,087 residents (give or take 39) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=160XX00US3630169, checked 2026-10-19), about 8,374 people per square mile.
The quote form takes a ZIP code; for Great Neck that is 11023 (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).
At 8,374 people per square mile, Great Neck is dense enough that noise setback rules and outdoor-unit placement on a small lot are the first questions the installer works through.
Of the 3,443 occupied homes in Great Neck, 78% heat with natural gas, 7% with heating oil, 7% with electricity and 6% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=160XX00US3630169, checked 2026-10-19).
Great Neck has 19 points less oil heat than Nassau County as a whole, where 26% of homes burn oil, and the same 7% electric share (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US36059, checked 2026-10-19).
Gas heats 78% of Great Neck against oil at 7%, 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.
The median Great Neck home was built in 1952 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=160XX00US3630169, 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=160XX00US3630169, checked 2026-10-19).
Great Neck has 3,720 housing units, 26% built before 1940 and 79% before 1980, with 11% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US3630169, checked 2026-10-19).
Great Neck has 7 points more pre-1940 homes than Nassau County as a whole (19%) and 4 points more homes built after 2000 than the county's 7% (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=050XX00US36059, checked 2026-10-19). An older stock means more insulation upgrades before the heat pump goes in.
79% of Great Neck homes were built before 1980 and only 11% in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US3630169, checked 2026-10-19), so most of the stock predates modern insulation codes; the installer's heat-loss calculation, not a square-footage rule, decides the tonnage.
70% of Great Neck homes are single-family detached, 3% are in two- to four-unit buildings and 25% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=160XX00US3630169, checked 2026-10-19).
With 70% detached houses and 3% in small multi-family buildings, a Great Neck quote is usually one or two outdoor units with ducted or ductless heads sized room by room. With 29% of Great Neck homes rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US3630169, checked 2026-10-19), the landlord signs the quote in many of them.
Great Neck has 6 points fewer detached houses than Nassau County overall (76%) and 12 points more five-plus-unit buildings than the county's 13% (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=050XX00US36059, checked 2026-10-19).
No electric utility is on file for Great Neck on this door yet, so this page does not name one; the name on the bill decides which rebate path applies.
NYS Clean Heat (Con Edison), run by Con Edison, is a live program for New York addresses and lists a standard figure of $7,000 (registry row 5 verified 2026-10-16, https://www.coned.com/en/save-money/rebates-incentives-tax-credits/rebates-incentives-tax-credits-for-residential-customers/electric-heating-and-cooling-technology-for-renters-homeowners/save-on-a-central-air-source-heat-pump, checked 2026-10-16); confirm eligibility for the Great Neck address before counting it. With 7% of Great Neck homes already on electric heat and 91% 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 Great Neck is $137,981 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=160XX00US3630169, 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: 9F. Source: ENERGY STAR Design Temperature Limit Reference Guide (2019 Edition), Nassau County row, 99% heating, PDF pages 84 to 86 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 9F figure is the Nassau County cold-day number a Great Neck heat pump is sized against, so ask the installer to show the system's heating output at 9F, not at the milder rating-label temperature.
Ask whether the quote is whole-home or partial-home, because with 78% of Great Neck on gas and 7% already electric the two paths carry different rebate figures and different sizing.
Ask for the heat-loss calculation room by room; the median Great Neck home has 6.5 rooms and was built around 1952, 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 Great Neck. The public number is the number the contractor quotes from.
No local contractor is named on this door for Great Neck yet. A request from this page goes to the first licensed shop that takes the door.