California
Statistics on children, youth and families in California from the Annie E. Casey Foundation and Children Now
3- and 4-year-olds who attend preschool by county
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Definition and Source
PROVIDER
Definition
Data Source
Includes the percentage of children, ages 3– 4, who attend nursery school or preschool, as reported by parents. Analysis provided by Population Reference Bureau and based upon five year estimates from U.S. Census Bureau, American Community Survey (ACS), 2006–10 and 2010–14. For this analysis, ACS data are clustered into multi-county groups for select low-population counties. The multi-county groups are as follows: (1) Alpine, Amador, Calaveras, Inyo, Mariposa, Mono and Tuolumne; (2) Colusa, Glenn, Tehama and Trinity; (3) Del Norte, Lassen, Modoc, Nevada, Plumas, Sierra and Siskiyou; (4) Lake and Mendocino; (5) Monterey and San Benito; (6) Sutter and Yuba.
Notes
Asterisks*
An asterisk indicates that data should be interpreted with caution. Asterisks were used to note low number of events (fewer than 10) or unstable data with large confidence intervals. Data or estimates with low numbers and large confidence intervals indicate that a data point may not be a true representation of the larger population.
NA (Not Available)
Data that are not available are noted as NA. The most frequent reasons for using the NA annotation include the unavailability of longitudinal data, data suppression from the original data source due to a low number event, or statistically unstable estimates.
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