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Dorchester, IL
Village in Macoupin County, Illinois.
Population
182
Land area
0.7sq mi
People per sq mi
252
ZIP codes
0
Dorchester and its ZIP codes
Economy and federal money
Jobs, pay, income and spending are for Macoupin County. PPP loans are for Dorchester.
Unemployment rate
3.8%
Aug 2026, -1.0 pts in a year
Average annual pay
$48,139
9,921 jobs, 2025
Income per person
$56,247
BEA, 2024
Federal spending
$335M
FY 2026, $7,439 per person
Environment and hazard risk
Dorchester, IL, from FEMA, NOAA and EPA
Natural hazard risk
Relatively Low
Top: earthquake
Storm events since 1996
575
Countywide, mostly hail
Flood insurance policies
11
0.1% of homes, county
July high / Jan low
86° / 19°F
40.0 inches of rain a year
Health statistics
Share of adults in Dorchester, IL, CDC PLACES estimates
Obesity
34.3%
U.S. 33.3% +1.0 pts
Diabetes
12.3%
U.S. 12.1% about the same
Smoking
14.2%
U.S. 12.8% +1.4 pts
Uninsured (18-64)
7.3%
U.S. 11.1% -3.8 pts
Cities near Dorchester
| Name | Distance | Land area (sq mi) |
|---|---|---|
| WilsonvilleVillage | 2.1 mi | 1 |
| Mount ClareVillage | 3.3 mi | 1.5 |
| Royal LakesVillage | 4.4 mi | 0.5 |
| BenldCity | 4.5 mi | 1.1 |
| SawyervilleVillage | 4.5 mi | 1 |
| GillespieCity | 4.6 mi | 1.5 |
| Bunker HillCity | 4.7 mi | 1.3 |
| East GillespieVillage | 5.2 mi | 0.3 |
| EagarvilleVillage | 5.8 mi | 0.9 |
| White CityVillage | 6.5 mi | 1.2 |
| StauntonCity | 7 mi | 4 |
| Lake Ka-HoVillage | 7.6 mi | 0.3 |
| PrairietownCensus-designated place | 8.3 mi | 0.2 |
| Mount OliveCity | 8.4 mi | 1.2 |
| ShipmanTown | 8.8 mi | 1.3 |
| WilliamsonVillage | 9.7 mi | 1.2 |
Frequently asked questions
- What county is Dorchester, IL in?
- Dorchester is in Macoupin County, Illinois.
- What is the population of Dorchester, IL?
- About 182 people live in Dorchester, based on American Community Survey 5-year estimates.
- What cities are near Dorchester?
- Nearby places include Wilsonville (2.1 mi), Mount Clare (3.3 mi), Royal Lakes (4.4 mi), Benld (4.5 mi), Sawyerville (4.5 mi).
Source: U.S. Census Bureau (TIGER/Line boundaries, American Community Survey) · Data as of 12/31/2023