State Undercount Rates for Young Children in the 2020 Census
Over the past decade there has been growing interest among researchers and Census stakeholders in the high and growing net undercount of young children (ages 0 to 4) in the U.S. Census which has resulted in a stream of research on this topic (O’Hare 2015: U.S. Census Bureau 2022; Jensen 2022; Griffin and O’Hare 2022). […]
Does the Census Bureau’s Blended Base Correct the High Undercount of Young Children in the 2020 Census? A Look at States and Counties
In March 2022, the Census Bureau (2022a) released data showing a net census undercount of 5.4 percent for the population ages 0 to 4. This was not only the highest net undercount of any age group in the 2020 Census; but it was also an increase from a 4.6 percent net undercount for this age […]
The Number of Young Hispanic Children in the Census Bureau’s Population Estimates Program Blended Base Compared to the 2020 Census Count
In the past few decades, the Census Bureau has produced yearly population estimates for states and counties including data for young Hispanic children (ages birth to 4). The Census Bureau released 2020 Decennial Census data for young Hispanic children on May 25, 2023, which allows us to compare the number of young Hispanic children from […]
How Well Would Administrative Records Correct the Undercount of Young Children in the U.S. Census?
Over the past couple of decades, the Census Bureau has been steadily building a robust administrative records (AR) database.[1] The most recent version of the Census Bureau AR database combines data from 31 different sources (see page 45 of U.S. Census Bureau 2023, for a list of these sources) The Census Bureau used this AR […]
Analysis of Census Bureau’s April 2023 Differential Privacy Demonstration Product: Implications for Data on Young Children
This report provides information on the accuracy of DP-infused data and provides a profile of the likely errors for young children that will be seen in data for in the 2020 Census. The analysis provided in this paper is just a sample of analyses that could be done but I believe the data analyzed in […]
The Number of Hispanic Children in the Population Estimates Program Blended Base Compared to the 2020 Census Count
In the past few decades, the Census Bureau has produced yearly population estimates for states and counties including data for Hispanic children (ages birth to 17). The 2020 Decennial Census also released data for Hispanic children. This allows us to compare the number of Hispanic children from these two data sources for states and counties. […]
Counties with High Undercounts of Children in the 2020 U.S. Census
The undercount of children in the U.S. Census is high and it has been growing. The undercount of children increased from 1.7 percent in 2010 to 2.1 percent in 2020 (O’Hare 2021a). That amounts to a net undercount of 1,554,000 children in the 2020 Census based on the Census Bureau’s Demographic Analysis estimates. The 2.1 […]
The Number of Children in The Population Estimates Program Blended Base Used for Post-2020 Census Estimates Compared to the 2020 Census Count
Since the 1970s, the Census Bureau has produced yearly population estimates for states and counties for the decade following each Decennial Census. The estimates include the number of children (population ages 0 to 17) for states and counties. The estimation method used by the Census Bureau starts with a population base and then adds or […]
Comparing the Accuracy of the 2020 Census Counts to Population Estimates Program Blended Base for Age Groups of Children
Following the 2020 Census, the Census Bureau implemented a new method for developing the population base used for the post-2020 Census estimates (U.S. Census Bureau 2021a). The new method is commonly referred to as the PEP (Population Estimates Program) blended base. The accuracy of the PEP blended base is important for young children because it […]
Analysis of Census Bureau’s August 2022 Differential Privacy Demonstration Product: Implications for Data on Young Children
Executive Summary The U.S. Census Bureau is using a new method called differential privacy (DP) to help protect the confidentiality and privacy of respondents in the 2020 Census. This paper provides some information on how the use of DP in the 2020 Census is likely to impact the accuracy of data for young children (population […]
