% Under 18
from Under 18 (Reports v1)
≈
2020–2024 estimated from block group (2024) on tract (2022) boundaries.
How we counted
United States
Detail level
0
+50
1×
0.1×
10×
1×
Map Information
Under 18. ACS 2020 to 2024 five-year estimates.
Geography
Displaying: Tract (2022 definitions)
This data uses 2022 Census tract definitions, which may differ from 2020 tract boundaries.
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.
B01001
– Sex by Age
Universe: Total population
9 variables
Native geography:Block Group (2024 definitions)
Display geography:Tract (2022 definitions)
Method:Block group overlap — Reads the survey at block-group level and assigns each block group to the target that contains it. Metro assignments use whole-county membership; the few block groups a boundary change splits are divided in proportion to land area.
Indicators
Under 18
Sum of 8 variables, divided by B01001_001E/100
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