List of Larger Counties* with 2020 Census Coverage Information for Hispanics Ages 0 to 4

We recently released a paper focused on the undercount of young Hispanic children at the county level in the Census**. That publication provided data for the 50 largest counties. This blog provides data for more individual counties analyzed in that publication. We don’t feel comfortable providing data for all counties, because the net undercount rates for […]
County-Level Analysis of 2020 Census Coverage of Young Hispanic Children

This paper is the first to investigate how the coverage of young Hispanic children in the 2020 Census varied by county, and it contributes to the literature on the count of Hispanics in the U.S. Census. The study found that there was considerable variation in the coverage rates for young Hispanic children across counties. However, […]
What the Supplemental Demographic and Housing Characteristics File from the 2020 Census Tells Us About Future Statistics on Children from the Census Bureau

Dr. Bill O’Hare’s report provides an overview of the implications of the Supplemental Demographic and Housing Characteristics (S-DHC) file released by the Census Bureau in September 2024. This file, the last from the 2020 Census, uniquely employs a variant of Differential Privacy (DP) called PHSafe, which retains the connection between children and their parents during […]
No Time for Tweaking

The Census Bureau is already planning for the 2030 Census, but key challenges from 2020 remain unresolved—particularly the undercount of vulnerable groups like young children, as well as Black and Hispanic populations. While some suggest only minor tweaks are needed, others believe bold changes are essential to ensure a more accurate count. In this blog, […]
What Past Research Tells Us About How to Prepare for the 2030 U.S. Census Count of Young Children

Probably the most important point in this paper is made in Figure 1 which shows a steady increase in the undercount of young children since 1980. What we have been doing for the past forty years is not working. The Census Bureau needs to try new strategies specifically focused on counting young children. Unless we […]
What the New Census Bureau Demographic Analysis (DA) Experimental Young Child Coverage Estimates for States and Counties Tell Us About Methodology

In the 2020 Census, the undercount of young children (ages 0 to 4) was 5.4 percent which is much higher than any other age group. Moreover, the net undercount of young children has tripled since the 1980 Census while the coverage of adults improved, and the coverage of older children was stable. This makes counting […]
The Changing Young Child Population of the United States: First Data From the 2020 Census

This study seeks to provide foundational research on the demographics of youngchildren in the U.S. The population total of young children has trended downwards over the past few decades, but within it, there has been a vast increase in racial and ethnic diversity. This study shows a demographic future that will be quite different from […]
What New Census Bureau Population Projections Tell Us About the Future of Young Children in The U.S.

The new regulations regarding the collection of data on race and ethnicity that were issued today by the U.S. Office of Management and Budget have implications for everyone. But from a statistical perspective they will have bigger consequences for young children than for older age groups, because young children are the most racially and ethnically […]
The Net Coverage of Children Ages 5 to 9 in the U.S. Census

This study examines subnational coverage for the population ages 5 to 9 and compares census coverage of children ages 0 to 4 to those ages 5 to 9. Young children (ages 0 to 4) have higher net undercount rates than children ages 5 to 9, and the pattern is pervasive and long standing. The pattern […]
Counties Where the Coverage for Young Children Deteriorated Between 2010 and 2020

The undercount of young children is one of the most vexing problems faced by the U.S. Census Bureau. The undercount rate for young children (ages 0 to 4) was not only high (5.4 percent) in the 2020 Census, but it has been increasing in every Census since 1980 when it was 1.4 percent. The official […]