Dorchester, Illinois
2026 Edition · 7 cards · data as of Oct 30, 2026
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Population
Down 4.6% since 2020.
125
people, the 1199th-largest of Illinois's cities and towns.
Census Population Estimates, 2025. Rank among Illinois's cities and towns computed by the Almanac. Sources: Census Population Estimates
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The seam
Cross one tract line and median rent jumps $383.
A $383 gap between neighbors, the sharpest rent edge between adjacent tracts in Macoupin County.
- $705 Tract 9562
- $1,088 Tract 9563
Census ACS 5-year, 2020-2024, adjacent tracts compared by the Almanac. Tract estimates carry wide margins of error. Sources: Census ACS 5-year
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Building
Most of the housing here is older than 2000.
- 0 homes permitted in ten years, 2016–2025
- 96% of all homes were built before 2000
Census Building Permits Survey, 2016–2025; Census ACS 5-year, 2020-2024. Survey estimates for a place this size carry wide margins of error. Sources: Census Building Permits Survey, Census ACS 5-year
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Units needed
None of three estimates finds a housing shortfall here.
0
is the estimated number of missing housing units, from the lowest to the highest of three estimates.
Range computed by the Almanac from 2018 jobs and household data, using three demand models: 1% of jobs located here, 1% of renter households, and a rate by town size applied to renters. The low end is the lowest of the three and the high end the highest. It is an estimate, not a count. Sources: Computed by the Almanac
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Home value
A median home costs 42% less than Illinois's.
$153,800
median home value in Dorchester.
- $153,800 Dorchester
- $263,300 Illinois
- $332,700 U.S.
Census ACS 5-year, 2020-2024. Survey estimates for a place this size carry wide margins of error. Sources: Census ACS 5-year