Birmingham / Semmes
Semmes has 5,626 residents (give or take 21) (ACS 2020-2024 5-year, table B01003, https://data.census.gov/table/ACSDT5Y2024.B01003?g=160XX00US0169240, checked 2026-10-19), about 370 people per square mile.
Semmes is about 207 miles from the Census center point for Birmingham in a straight line and covers 15.211 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).
Semmes is spread out at 370 people per square mile across 15.211 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 2,286 occupied homes in Semmes, 25% heat with natural gas, 0% with heating oil, 74% with electricity and 1% with propane (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=160XX00US0169240, checked 2026-10-19).
Electricity already heats 74% of Semmes homes, ahead of gas at 25%, and a home on electric baseboard sees the biggest bill change from a heat pump because it replaces resistance heat one for one.
Semmes has about the Mobile County oil share of 0% and 11 points more electric heat than the county's 63% (ACS 2020-2024 5-year, table B25040, https://data.census.gov/table/ACSDT5Y2024.B25040?g=050XX00US01097, checked 2026-10-19).
Semmes has 2,562 housing units, 0% built before 1940 and 29% before 1980, with 36% built in 2000 or later (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=160XX00US0169240, checked 2026-10-19).
Semmes has 4 points fewer pre-1940 homes than Mobile County as a whole (4%) and 14 points more homes built after 2000 than the county's 22% (ACS 2020-2024 5-year, table B25034, https://data.census.gov/table/ACSDT5Y2024.B25034?g=050XX00US01097, checked 2026-10-19).
The median Semmes home was built in 1993 (ACS 2020-2024 5-year, table B25035, https://data.census.gov/table/ACSDT5Y2024.B25035?g=160XX00US0169240, checked 2026-10-19) and the median home has 5.7 rooms (ACS 2020-2024 5-year, table B25018, https://data.census.gov/table/ACSDT5Y2024.B25018?g=160XX00US0169240, checked 2026-10-19).
80% of Semmes homes are single-family detached, 6% are in two- to four-unit buildings and 6% are in buildings of five or more units (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=160XX00US0169240, checked 2026-10-19).
With 80% detached houses and 6% in small multi-family buildings, a Semmes quote is usually one or two outdoor units with ducted or ductless heads sized room by room. With 30% of Semmes homes rented (ACS 2020-2024 5-year, table B25003, https://data.census.gov/table/ACSDT5Y2024.B25003?g=160XX00US0169240, checked 2026-10-19), the landlord signs the quote in many of them.
Semmes has 7 points more detached houses than Mobile County overall (73%) (ACS 2020-2024 5-year, table B25024, https://data.census.gov/table/ACSDT5Y2024.B25024?g=050XX00US01097, checked 2026-10-19).
No electric utility is on file for Semmes on this door yet, so this page does not name one; the name on the bill decides which rebate path applies.
Alabama Power gas-furnace-to-heat-pump rebate, run by Alabama Power, is a live program for Alabama addresses and covers qualifying equipment at $1,000 per system (registry row 29 verified 2026-10-14, https://www.alabamapower.com/residential/save-money-and-energy/rebates-and-incentives.html, checked 2026-10-16); confirm eligibility for the Semmes address before counting it. With 74% of Semmes homes already on electric heat and 26% on gas, oil or propane, the row that applies depends on the name on the electric bill and the fuel coming out.
TVA EnergyRight heat pump rebate (north Alabama), run by TVA EnergyRight, is a live program for Alabama addresses and lists a standard figure of $500 (registry row 30 verified 2026-10-14, https://energyright.com/residential/rebates/heat-pump/, checked 2026-10-16); confirm eligibility for the Semmes address before counting it.
Median household income in Semmes is $66,417 (ACS 2020-2024 5-year, table B19013, https://data.census.gov/table/ACSDT5Y2024.B19013?g=160XX00US0169240, 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: 29F. Source: ENERGY STAR Design Temperature Limit Reference Guide (2019 Edition), Mobile County row, 99% heating, PDF pages 4 to 6 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 29F figure is the Mobile County cold-day number a Semmes heat pump is sized against, so ask the installer to show the system's heating output at 29F, not at the milder rating-label temperature.
Ask for the heat-loss calculation room by room; the median Semmes home has 5.7 rooms and was built around 1993, 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 Semmes. The public number is the number the contractor quotes from.
No local contractor is named on this door for Semmes yet. A request from this page goes to the first licensed shop that takes the door.