Dorchester, Illinois facts for kids
Quick facts for kids
Dorchester, Illinois
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Location in Macoupin County, Illinois
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 Dorchester, Illinois
Location in the United States
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| Country | United States |
| State | Illinois |
| County | Macoupin |
| Townships | Dorchester, Gillespie |
| Area | |
| • Total | 0.72 sq mi (1.87 km2) |
| • Land | 0.72 sq mi (1.87 km2) |
| • Water | 0.00 sq mi (0.00 km2) |
| Elevation | 659 ft (201 m) |
| Population
(2020)
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| • Total | 133 |
| • Density | 184.21/sq mi (71.15/km2) |
| Time zone | UTC-6 (CST) |
| • Summer (DST) | UTC-5 (CDT) |
| ZIP Code |
62033
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| Area code(s) | 618 |
| FIPS code | 17-20370 |
| GNIS ID | 2398740 |
Dorchester is a village in Macoupin County, Illinois, United States. In 2020, about 133 people lived there.
Where is Dorchester?
Dorchester is in the southern part of Macoupin County. It is about 2 miles (3.2 km) northwest of Wilsonville. The village is also 5 miles (8 km) southwest of Gillespie. Dorchester shares a ZIP Code (62033) with Gillespie. It is about 15 miles (24 km) south of Carlinville, which is the main town of Macoupin County.
Land and Water
Dorchester covers an area of about 0.72 square miles (1.87 square kilometers). All of this area is land. Water from the village flows east into the West Fork of Cahokia Creek. This creek then goes south and west. It eventually reaches the Mississippi River near St. Louis.
How Many People Live Here?
The number of people living in Dorchester has changed over the years. Here's a quick look at the population:
| Historical population | |||
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| Census | Pop. | %± | |
| 1880 | 69 | — | |
| 1890 | 104 | 50.7% | |
| 1910 | 102 | — | |
| 1920 | 179 | 75.5% | |
| 1930 | 144 | −19.6% | |
| 1940 | 185 | 28.5% | |
| 1950 | 162 | −12.4% | |
| 1960 | 161 | −0.6% | |
| 1970 | 170 | 5.6% | |
| 1980 | 155 | −8.8% | |
| 1990 | 145 | −6.5% | |
| 2000 | 142 | −2.1% | |
| 2010 | 151 | 6.3% | |
| 2020 | 133 | −11.9% | |
| U.S. Decennial Census | |||
People in 2000
In 2000, there were 142 people living in Dorchester. They lived in 58 households. About 40 of these were families. Most people living in the village were White.
About 22.4% of households had kids under 18 years old. The average household had about 2.45 people. The average family had about 3 people.
The population was spread out by age. About 24.6% were under 18 years old. About 13.4% were 65 years or older. The average age in the village was 40 years.
