Home Insurance in Dorchester, Illinois
With a median home value of $153,800, Dorchester is 11% higher than the Macoupin County median.
The typical home in Dorchester was built around 1946. About 76% of homes were built before 1960, about 31 points above Macoupin County's 45%. Because older housing stock often has aging wiring, roofing or plumbing, it can cost more to insure or rebuild.
Mobile and manufactured homes typically need a manufactured-home (HO-7) policy rather than a standard homeowners policy. The housing stock in Dorchester is 94% single-family homes and 6% mobile or manufactured homes.
47% of owner-occupied homes in Dorchester carry a mortgage, and mortgage lenders require hazard insurance for as long as the loan is active.
Dorchester has an owner-occupancy rate of 100% and a vacancy rate of 13%; unoccupied homes typically need a different coverage form.
Homes heated with propane can carry added fire risk. Fuel-tank leaks and spills are often excluded from standard homeowners policies. Most homes in Dorchester - 88% - are primarily heated with natural gas.
Macoupin County had 12 active NFIP flood policies as of September 2026. Its top FEMA-rated hazard is earthquake (Relatively Moderate). See the full Macoupin County home insurance overview for all FEMA hazard ratings and flood coverage details. Earthquake damage is excluded from a standard homeowners policy.
The statewide average premium for a standard HO-3 homeowners policy in Illinois is $1,480 per year, according to the NAIC homeowners insurance report (2023 data).
Key figures
| Median home value | $153,800 |
|---|---|
| Median year built | 1946 |
| Owner-occupied share | 100% |
| Share of owner-occupied homes with a mortgage | 47% |
| Top county hazard | Earthquake (Relatively Moderate) |
| Active NFIP policies in Macoupin County | 12 |
| Home insurance premium | $1,480 - statewide average (NAIC, 2023 data) |
Nearby towns
Sources
Data last updated: 2026-09-29
- U.S. Census Bureau Gazetteer Files (2024)
- U.S. Census Bureau, American Community Survey 2020-2024 5-Year Estimates (2024)
- FEMA National Risk Index (December 2025)
- FEMA OpenFEMA NFIP Redacted Policies v3 (2026)
- NAIC Dwelling Fire, Homeowners Owner-Occupied, and Homeowners Tenant and Condominium/Cooperative Unit Owners Insurance: Data for 2023 (published 2026) (2023)