2026 Q3 data
Roof replacement cost in Decatur, IL
Decatur, IL metro area
How much does a new roof cost in Decatur, IL?
$14,500 – $25,500
Typical $20,000 · architectural shingles · 2,000 sq ft home
That is $581 per square (100 sq ft of roof) installed, above the US typical of $500.
How we got this number
An architectural shingle roof in the Decatur, IL metro costs $475 to $687 per square installed (typical $581) on the 2026 Q3 Roof Cost Index: -4.6% against the Illinois figure of $609 and +16.2% against the US typical of $500. Metro rank 13 of 263 (1 = most expensive).
Material is priced nationally; labor is scaled by the local roofer wage. Roofers here earn a mean $34.90/hour (median $35.88, about 60 employed), BLS May 2025. The whole-roof range is for a 2,000 sq ft single-story home (6/12 pitch, one layer torn off, permit and dumpster included). Full methodology.
All materials in Decatur, IL
| Material, per square | Low | Typical | High |
|---|---|---|---|
| Architectural shingles | $475 | $581 | $687 |
| 3-tab shingles | $330 | $417 | $505 |
| Standing seam metal | $1,024 | $1,412 | $1,799 |
| Metal panel | $599 | $1,049 | $1,499 |
| Tile | $824 | $2,074 | $3,323 |
| Slate | $1,099 | $2,224 | $3,348 |
| Flat membrane | $300 | $556 | $812 |
This page is generated from the 2026 Q3 Index for the BLS metropolitan statistical area "Decatur, IL" (area code 19500). State rank for Illinois: 1 of 51. Methodology.
Roofing conditions in Decatur
Housing age. The median home in the Decatur, IL metro was built in 1964, older than the median metro in the Index (1982). 75.3% of homes were built before 1980 and 8.2% in 2000 or later; 70% of occupied homes are owner-occupied. Roof age, not house age, sets the replacement date.
Hail. NOAA's Storm Events database logged 38 county hail reports across the metro's 1 county from 2021 to 2025 (2 in 2021, 2 in 2022, 4 in 2023, 25 in 2024, 5 in 2025), rank 98 of 263 metros. From January 2021 to June 2026, 39 reports were stones of 1 inch or larger, and the largest was 2.5 inches. Most reports came from Macon, Illinois (48). After a hail storm, read the roof insurance claim guide and how hail damages a roof.
Sources: NOAA NCEI Storm Events Database (county hail reports 2021 to June 30, 2026); U.S. Census Bureau ACS 5-year estimates 2020-2024, tables B25035, B25034 and B25003; counties per OMB July 2023 metro definitions.
Other Illinois metros
- Chicago-Naperville-Elgin $628/sq
- Springfield $614/sq
- Peoria $574/sq
- Rockford $560/sq
- St. Louis $538/sq
- Champaign-Urbana $518/sq
- Davenport-Moline-Rock Island $483/sq
Metros with a similar cost
- Atlantic City-Hammonton, NJ $591/sq · rank 10
- San Francisco-Oakland-Fremont, CA $590/sq · rank 11
- Seattle-Tacoma-Bellevue, WA $584/sq · rank 12
- St. Cloud, MN $576/sq · rank 14
- Duluth, MN-WI $574/sq · rank 15
More: how much a new roof costs, every state, the full Index.
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