Median year built
Each map shows ACS five-year estimates on that period’s boundaries. Boundary changes can affect nearby patterns.
2015–2019
county 2019 boundaries
county 2019 boundaries
Median Year Built (2015–2019)
Geography
Displaying: County (2019 definitions)
This data uses 2019 county definitions. Notably, Connecticut's 8 legacy counties were replaced by 9 planning regions in 2022.
Data Sources & Methodology
American Community Survey 5-Year Estimates (2019)
5-year estimates combine data from 2015 to 2019. This provides more reliable estimates for smaller geographic areas but represents an average over the 5-year period.
B25034
– Year Structure Built
Universe: Housing units
10 variables
Native geography:County (2019 definitions)
Display geography:County (2019 definitions)
Method:Direct — no transformation needed
Indicators
Median Year Built (2015–2019)
MEDIAN (raw value)
2020–2024
county 2022 boundaries
county 2022 boundaries
Median Year Built
Geography
Displaying: County (2022 definitions)
This data uses 2022 county definitions. Notably, Connecticut's 8 legacy counties were replaced by 9 planning regions in 2022.
Data Sources & Methodology
American Community Survey 5-Year Estimates (2024)
5-year estimates combine data from 2020 to 2024. This provides more reliable estimates for smaller geographic areas but represents an average over the 5-year period.
B25034
– Year Structure Built
Universe: Housing units
10 variables
Native geography:County (2022 definitions)
Display geography:County (2022 definitions)
Method:Direct — no transformation needed
Indicators
Median Year Built
MEDIAN (raw value)
- At most 1966.255414
- At most 1977.079456
- At most 1983.319425
- At most 1990.389115
- Above 1990.389115
- Gray: unavailable data.