Rose Hill, NC
5 miles south
Its NOAA station logs about 590 fewer heating degree days than Magnolia's; 1,429 people to Magnolia's 875
Attic insulation in Rose HillAttic Insulation in Magnolia, NC
Blown-in attic insulation for Magnolia, NC, 5 miles from Rose Hill, plus removal and air sealing.
About Magnolia and Its Homes
Magnolia was incorporated in 1855 as Stricklandsville, renamed two years later for its magnolia trees, and grew as a rail stop shipping turpentine, rosin and, by about 1900, flower bulbs. The county's architectural study describes its academy, stores and churches, but says little about its houses.
Magnolia, in Duplin County, grew from 827 people in 2020 to 875 in 2025 (Census Bureau estimates), on 1.07 square miles. That makes Magnolia the fifth-largest town in Duplin County.
Magnolia at a Glance
- County: Duplin County
- Population: 875 (2025), 827 (2020), up 5.8%
- Land area: 1.07 square miles (818 people each)
- Housing units: about 440 (±124)
- Climate zone: 3 on both maps
- ENERGY STAR target for Magnolia attics: R-49 from bare, R-38 over 3 to 4 inches (R-value guide)
Census Bureau estimates for Magnolia, 2020 to 2024 (± margin of error).
Attic Insulation in Magnolia
About 35 percent of Magnolia's homes predate 1970; if your joists show above the insulation, ENERGY STAR says to add more insulation.
The Local Climate
Magnolia's center sits about 140 feet above sea level, 9 miles from NOAA's Warsaw 5 E station, the best match for Magnolia. The station's 1991 to 2020 normals average about 3,490 heating and 1,420 cooling degree days a year, so at Magnolia's station, heating needs outweigh cooling. Readings change over short distances around Magnolia: NOAA's Wallace 1 SE station, 12 miles away, averages about 2,900 heating degree days.
Homes by Age: What It Means for the Attic
At about 440 housing units, give or take 124, Magnolia is too small for the survey to date its houses. For Magnolia, the nearest town with solid figures is Rose Hill, 5 miles off: median year built 1968 and about 78 percent detached houses.
Air Sealing and Duct Sealing in Magnolia
Air sealing in a Magnolia attic covers wire and pipe holes, wall tops, the attic stair and bath fans.
How Homes Here Are Heated
- Electricity: 84% (±13), about 310 households; Duplin County: 77%
- Piped gas: under 5%
- Bottled or tank gas: 14% (±6), about 50 households
Power, Gas and Rebates
Power in and around Magnolia comes from Duke Energy Progress and Four County EMC; your bill says which. For gas, Magnolia is in the Duplin County franchise of Piedmont Natural Gas, whose mains may not reach every street in Magnolia.
Rebate to check if Duke Energy Progress serves your Magnolia home: Smart $aver Insulate and Seal (Duke Energy; Insulation Pros is an approved trade ally). Before a job in Magnolia, check its current terms; the Duplin County page lists every program.
Attic Insulation Removal in Magnolia
In a Magnolia attic, only wet, moldy or animal-soiled insulation is vacuumed out (ENERGY STAR's test), once the cause is fixed, and after mice that Magnolia attic is sanitized and deodorized; dry, clean insulation stays.
Also Serving Near Magnolia
Nearest to Magnolia first.
Warsaw, NC
7 miles north
2,853 people, about 3 times Magnolia's population
Attic insulation in Warsaw
Magnolia Insulation FAQs
Is any building in Magnolia on the National Register?
Not inside the town, going by the state's list of Register properties. The 1994 county study did put a few Magnolia buildings on the State Historic Preservation Office's study list. They are the two-story frame academy of 1858, a brick bank building from about 1911 and a dry goods store from about 1900. A study list entry is not a Register listing, and Duplin's only local preservation commission is in Warsaw. So no historic designation shapes attic work on a house here.
What needs checking first in a Magnolia house from the railroad years?
Two things above the ceiling: old wiring and any chimney. Magnolia has been a town since 1855, so some houses could predate 1930, when knob-and-tube wiring was still in use. ENERGY STAR rates that wiring a fire hazard once it is buried in insulation, so an electrician sees to it first. A brick chimney coming up through the attic floor leaves a gap that is flashed in aluminum and sealed with heat-rated caulk, and the insulation is held two inches off the masonry.
Could the old insulation in a Magnolia attic be vermiculite?
It could: about 20 percent of Magnolia's homes predate 1960. If a Magnolia attic holds a pebble-like gray-brown or silver-gold fill, leave it undisturbed: the EPA says vermiculite may contain asbestos.
Does attic insulation in Magnolia need a permit?
Magnolia Town Hall can say whether Duplin County Building Inspections, the town itself or another office handles permits in Magnolia; ask before work starts.
Sources
Census Bureau figures for Magnolia, NOAA normals for the Warsaw 5 E station (October 2026). Compiled by Insulation Pros. How the town pages are made.
Sources for the Magnolia introduction and questions (read October 20, 2026):
- Magnolia, in The North Carolina Gazetteer (William S. Powell, 2nd ed., UNC Press 2010), NCpedia
- Historic and Architectural Resources of Duplin County, NC, ca. 1790-1943, National Register multiple property documentation form, 1994 (NC HPO)
- NC Listings in the National Register of Historic Places, NC State Historic Preservation Office
- Historic Preservation Commission Staff in North Carolina, listed by county, as of 2/20/2023 (NC HPO)
- Attic Insulation Project, ENERGY STAR
- Furnace Flues Require Special Sealing Techniques, ENERGY STAR do-it-yourself guide
Magnolia, NC
Open in Google Maps (opens in a new tab)Serving Magnolia, NC
Insulation Pros is an insulation contractor serving North Carolina, Magnolia and the rest of Duplin County included.
Reach us
Send the square footage of your Magnolia attic, or call (336) 870-3893.