Alexander County and Its Homes
Alexander County grew 2 percent from 2020 to 2025, to 36,958 people by the Census Bureau's estimate, in about 16,200 housing units.
Its one incorporated town, Taylorsville, has a page here. About 5 percent of Alexander County's housing units are inside town limits, the rest in unincorporated areas.
Alexander County at a Glance
- Population: 36,958 (2025), 36,406 (2020)
- Housing units: about 16,200
- Median year built: 1985 (North Carolina: 1991)
- Built before 1980: 43% (statewide: 34%)
- Detached houses: 72%
- Mobile homes: 24%
- Owner-occupied: 81%
- Heated with electricity: 80% (statewide: 65%)
- Climate zone: 3 (2021 map), 4 (state code)
- Towns with pages here: 1
Census Bureau estimates for Alexander County (housing: 2020 to 2024).
Towns and Communities in Alexander County
Taylorsville
2,333 people · median home 1976 · Duke Energy Carolinas
Unincorporated communities the Census Bureau maps in Alexander County: Bethlehem (about 1,700 housing units, median year built 1992), Stony Point and Hiddenite.
What We Do in Alexander County
Attic Insulation in Alexander County
Some 43 percent of Alexander County housing units predate 1980; joists showing above their insulation mean more blown-in fiberglass is due, R-49 from bare.
Attic Insulation Removal in Alexander County
Wet, moldy or animal-soiled insulation comes out of Alexander County attics, and a mouse-soiled Alexander County attic is sanitized and deodorized; in the 17 percent of homes built before 1960, vermiculite is ruled out first.
Air Sealing in Alexander County
Some 80 percent of Alexander County homes heat with electricity, often through attic ducts; their joints and the ceiling's gaps are sealed first.
Homes in Alexander County
Half of Alexander County's 16,200 housing units were built before 1985: 25 percent before 1970, 43 percent before 1980 (nearly all before the state's 1978 insulation rule) and 8 percent in 2010 or later (16 percent statewide). The largest share went up in the 1990s, under codes that asked for less than ENERGY STAR now suggests; ENERGY STAR notes insulation is often thinnest at the eaves. Taylorsville's median home dates from 1976, 9 years older than Alexander County's as a whole.
Alexander County by type: 72 percent detached houses and 24 percent mobile homes (11 percent statewide). In Alexander County, 80 percent of homes heat with electricity, 4 percent with piped gas, 6 percent with tank gas, 5 percent with oil or kerosene (2 percent statewide) and 4 percent with wood.
Alexander County Homes by Year Built
- Before 1940: about 730 units, 4% (±1)
- 1940s: about 850 units, 5% (±2)
- 1950s: about 1,260 units, 8% (±2)
- 1960s: about 1,290 units, 8% (±2)
- 1970s: about 2,850 units, 18% (±3)
- 1980s: about 2,270 units, 14% (±2)
- 1990s: about 2,950 units, 18% (±3)
- 2000s: about 2,690 units, 17% (±2)
- 2010s: about 1,030 units, 6% (±2)
- 2020 or later: about 310 units, 2% (±1)
Climate Across Alexander County
NOAA 1991 to 2020 normals for Alexander County towns, by station: Taylorsville station (Taylorsville): about 3,690 heating and 1,260 cooling degree days. NOAA's Hickory Airport station, 17 miles from Taylorsville, has about 3,550 heating and 1,400 cooling degree days.
Power and Gas in Alexander County
The card lists Alexander County's town utilities by the territory maps; a power bill confirms the one at an address.
Enbridge Gas North Carolina holds the Alexander County gas franchise (NC Utilities Commission map), and 4 percent of Alexander County homes heat with piped gas.
Who Supplies Power in Alexander County
- Duke Energy Carolinas: Taylorsville
- EnergyUnited: homes near Taylorsville
Energy Programs for Alexander County Homes
Check each program's current terms for an Alexander County home; some pay only through the utility's contractor network. Insulation Pros is an approved Duke Energy trade ally for Duke's rebate.
Programs for Alexander County
- Smart $aver Insulate and Seal (Duke Energy rebate; Taylorsville).
- Home Energy House Call (Duke Energy home assessment; Taylorsville).
- Income-qualified Weatherization (Duke Energy income-qualified; Taylorsville).
- ThermWise Weatherization Assistance (Enbridge Gas; Alexander County gas customers): no-cost weatherization for gas customers, income-qualified.
- Energy Saver North Carolina (statewide income-qualified; any Alexander County address).
- Weatherization Assistance Program (statewide income-qualified; any Alexander County address).
Alexander County Insulation FAQs
Do you serve all of Alexander County?
Yes: Taylorsville and every unincorporated Alexander County address.
Which utilities offer insulation rebates in Alexander County?
Duke Energy's Smart $aver Insulate and Seal (Taylorsville).
Does attic insulation in Alexander County need a permit?
Ask Alexander County Building Inspections before work starts. For an address in Taylorsville, the town or city hall can tell you whether Alexander County's office handles its permits.
Counties Near Alexander County
Catawba County · Iredell County · Caldwell County · Wilkes County · Lincoln County · All service areas
Alexander County, NC
Open in Google Maps (opens in a new tab)Insulation Pros in Alexander County
An insulation contractor serving North Carolina, Alexander County included.
Send the square footage of your Alexander County attic, or call (336) 870-3893.