Dallas / Rockwall
Rockwall has 51,168 residents (give or take 43) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=160XX00US4862828, checked 2026-10-19), about 1,729 people per square mile.
Rockwall is about 21 miles from the Census center point for Dallas in a straight line and covers 29.587 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 Rockwall that is 75032, 75087 (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).
Of the 18,273 occupied homes in Rockwall, 52% heat with natural gas, 0% with heating oil, 46% with electricity and 1% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=160XX00US4862828, checked 2026-10-19).
Gas heats 52% of Rockwall against electricity at 46%, and a cold-climate heat pump sized for this market replaces the gas system outright, so the usual quote is a whole-home install.
Rockwall has about the Rockwall County oil share of 0% and 6 points less electric heat than the county's 52% (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US48397, checked 2026-10-19).
Rockwall has 19,328 housing units, 0% built before 1940 and 8% before 1980, with 62% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US4862828, checked 2026-10-19).
Rockwall has 5 points fewer homes built after 2000 than the county's 67% (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=050XX00US48397, checked 2026-10-19).
The median Rockwall home was built in 2003 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=160XX00US4862828, checked 2026-10-19) and the median home has 6.6 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=160XX00US4862828, checked 2026-10-19).
78% of Rockwall homes are single-family detached, 4% are in two- to four-unit buildings and 15% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=160XX00US4862828, checked 2026-10-19).
With 78% detached houses and 4% in small multi-family buildings, a Rockwall quote is usually one or two outdoor units with ducted or ductless heads sized room by room. With 28% of Rockwall homes rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US4862828, checked 2026-10-19), the landlord signs the quote in many of them.
Rockwall has 7 points fewer detached houses than Rockwall County overall (85%) (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=050XX00US48397, checked 2026-10-19).
62% of Rockwall housing was built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US4862828, checked 2026-10-19), and homes that recent usually meet the insulation codes in place at the time, so a heat pump sized to the floor plan lands closer to the real load than it would in an older neighborhood.
No electric utility is on file for Rockwall on this door yet, so this page does not name one; the name on the bill decides which rebate path applies.
Median household income in Rockwall is $115,580 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=160XX00US4862828, 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: 22F. Source: ENERGY STAR Design Temperature Limit Reference Guide (2019 Edition), Rockwall County row, 99% heating, PDF pages 115 to 125 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 22F figure is the Rockwall County cold-day number a Rockwall heat pump is sized against, so ask the installer to show the system's heating output at 22F, not at the milder rating-label temperature.
Ask whether the quote is whole-home or partial-home, because with 52% of Rockwall on gas and 46% already electric the two paths carry different rebate figures and different sizing.
Ask for the heat-loss calculation room by room; the median Rockwall home has 6.6 rooms and was built around 2003, 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 Rockwall. The public number is the number the contractor quotes from.
No local contractor is named on this door for Rockwall yet. A request from this page goes to the first licensed shop that takes the door.