Description: Polygon shapefile with 25,607 features clipped to the state boundary of California. 2020 Decennial Census block groups (CBGs) in California enumerating population, households, and housing units data as of April 1, 2020 (US Census) and each January 1 thereafter (California Department of Finance). DOF data is released at the City and County level and is apportioned to the block level based on a unique calculated growth rate for each city and county, then "rolled-up" to the Census block group level.Calculated population and housing fields are "Double" data type so that the individual values can be displayed as integers, while the decimals can be accumulated when summing over larger geographic areas.Version HistoryLast Process:  20230613
Service Item Id: 61d98f089d854b0bb12a90b82bde0409
Copyright Text: Middle Mile Broadband for California, California Department of Technology
Description: Polygon shapefile with 25,607 features clipped to the state boundary of California. 2020 Decennial Census block groups (CBGs) in California enumerating population, households, and housing units data as of April 1, 2020 (US Census) and each January 1 thereafter (California Department of Finance). DOF data is released at the City and County level and is apportioned to the block level based on a unique calculated growth rate for each city and county, then "rolled-up" to the Census block group level.Calculated population and housing fields are "Double" data type so that the individual values can be displayed as integers, while the decimals can be accumulated when summing over larger geographic areas.Version HistoryLast Process:  20230613
Service Item Id: 61d98f089d854b0bb12a90b82bde0409
Copyright Text: Middle Mile Broadband for California, California Department of Technology
Description: Data provided from CPUC as shapefile. This layer represents initial proposed routes for a statewide open-access middle-mile broadband network (based on May 2021 selected highway segments). Filtered to STATUS = 'IN'.This network linework is based on the State Highway Network (SHN Lines). SHN Lines represents each route-alignment of the entire State Highway Network (SHN), including relinquishments, as single-record multi-part features based on extent of each route described in the TSN databases on October 14, 2019. The data used for this representation of the statewide open-access middle-mile network in comprised of a subset of these SHN Lines along the left route alignments.SCAG staff processed this layer to only illustrate the network within SCAG's boundaries. Layer Source: https://middle-mile-broadband-initiative.cdt.ca.gov/datasets/6ab17ba395a1433b8383277b243287cb_0/explore?location=36.993963%2C-119.281590%2C6.84Source of Metadata: https://www.arcgis.com/sharing/rest/content/items/6ab17ba395a1433b8383277b243287cb/info/metadata/metadata.xml?format=default&output=html
Service Item Id: 61d98f089d854b0bb12a90b82bde0409
Copyright Text: California Public Utilities Commission
Description: This coverage represents the 2020 US Census Tract polygons containing the FCC Fabric BSL data as of 7-21-2023The National Broadband Serviceable Location Fabric is “a common data set of all residential and business locations (or structures) in the U.S. where fixed broadband internet access service is or can be installed. Each location in the Fabric is called a Broadband Serviceable Location (BSL), and the definition of a BSL is determined by the FCC. The Fabric is the foundational location database that is being used across several government programs, including NTIA’s BEAD, the FCC’s Broadband Data Collection, National Broadband Maps, and more. CostQuest is the official contractor and provider of the National Serviceable Location Fabric data.
Description: This shapefile was developed using U.S. Census data from the Computer and Internet Use survey questions in the American Community Survey (ACS). It shows data related to households and their respective access to broadband.
Service Item Id: 61d98f089d854b0bb12a90b82bde0409
Copyright Text: U.S. Census, American Community Survey (ACS)
Description: This dataset features the Census Tracts used in the 2010 United States Census. Census Tracts are statistical areas bounded on all sides by visible features, such as streets, roads, streams, and railroad tracks, and/or by nonvisible boundaries such as city, town, township, and county limits, and short line-of-sight extensions of streets and roads. The census tract dataset was then joined to California's Hard-to-Count index score. The HTC score was downloaded from: https://census.ca.gov/htc-map during March 2024. Identifying California’s Hard-to-Count in Census 2020The California Department of Finance Demographic Research Unit has created a California-focused hard-to-count metric modeled on the U.S. Census Bureau’s Hard-to-Count Score of past censuses.The California Hard-to-Count (CA-HTC) Index is based on multiple demographic, housing and socioeconomic variables correlated with an area being difficult to enumerate. Census tracts with higher CA-HTC indexes are likely to be places that will pose significant challenges to enumerate in 2020, while tracts with lower indexes should be easier to count.The California Census Office has created this interactive map to view California census tracts and block groups. Click here to start using the map.Below are descriptions of the 14 variables that comprise the CA-HTC Index (with data source).Percent of households without broadband subscriptions (California Public Utilities Commission): More than 10 million California households will be asked to complete the census online. Some outreach efforts will be online, as well. A household without a broadband subscription is less likely to know about the census and more likely to fail to self-respond.Percent of households that are non-family (Table B11001, U.S. Census Bureau 2013-2017 American Community Survey [ACS]). Nonfamily households generally involve multiple roommates. The household member completing the census form might forget to include some of these people.Percent of occupied housing units that are renter-occupied (Table B25003, ACS). The percentage of renter households in a tract or block group is among the strongest hard-to-count indicators. Renters move more often and have a greater chance of being missed during the census-taking process.Percent of total housing units that are vacant (Table B25002, ACS): Vacant housing units change status quickly. Housing units considered vacant by census takers in reality could be occupied April 1, 2020.Percent crowded (the percent of occupied housing units with more than 1.5 persons per room. Table B25014, ACS): As with nonfamily households, occupants in crowded households are more likely to be left off census forms. Also, the person completing the form may omit occupants if the household exceeds landlord or government limits.Percent of population that is foreign-born (Table B05001, ACS): People who are born in other countries are less likely to be familiar with the census. Some also are not citizens and may fear the consequences of revealing their presence and legal status to the government.Percent of adults (25 or older) who are not high-school graduates (Table S1501, ACS): Non-high school graduates are less likely to be engaged in civic affairs and more likely to be working multiple low-wage jobs that leave little spare time for completing census forms.Percent of population with income below 150 percent of poverty level (Table C17002, ACS): Multiple issues increase the odds of an undercount among the poor. They tend to be renters. Administrative records to supplement the census, such as tax returns, may be incomplete for this group. They also are less likely to have internet access.Percent of households receiving public assistance income (Table B19057, ACS): People may be reluctant to share their true household size because the information may contradict government assistance records. They are likely living near or below the poverty line.Percent of persons (ages 16 or older) unemployed (Table B23025, ACS): Unemployed people spend much of their time looking for a job. They also might be homeless and living an unsettled lifestyle.Percent limited-English households (the percent of households in which no person age 14 years or older speaks English very well. Table S1602, ACS): People who don’t speak English well will have trouble understanding census materials, including the rationale for the census.Percent of persons who moved from outside county in past year (Table B07003, ACS): Recent arrivals likely have little connection to local civic affairs. Proxy information and administrative records about this population will be more difficult to come by.Percent of population under 5 (Table S0101, ACS): More children are living in complex family situations, such as shared parental custody or with a grandparent, increasing the chances they will be left off the census form. Some new parents mistakenly believe the census incorporates birth records.Percent of total housing units with 3 or more units in a multi-unit structure (Table B25024, ACS): There could be a fence or gate around these types of housing units, hampering census workers’ non-response follow-up. Individual units may not have addresses, skewing non-response data.To calculate CA-HTC indexes for California’s 8,057 census tracts, each of the above variables was sorted from high to low (e.g. sort tracts from the highest percent unemployed to the lowest.)Each variable was recoded 0-11: The highest values were recoded as 11, down to the lowest values, which were recoded as 0 (e.g. values of 11 are giving to tracts with the highest unemployment rates and values of 0 are given to tracts below the California unemployment tract median.) The sum of the 14 values represents a tract’s CA-HTC Index.
Service Item Id: 61d98f089d854b0bb12a90b82bde0409
Copyright Text: U.S. Census Bureau American Community Survey 2017-2021 5-year estimates; Census 2020 PL94-171. California Department of Finance Demographic Research Unit
Description: This layer represents the California Public Utilities Commission’s (CPUC) State Broadband consumer wireline and/or fixed wireless (fixed)broadband deployment.The areas defined in this data are for those facilities-based providers of fixed broadband service in which broadband service is available to end users. For this purpose, an "end user" of broadband service is a residential entity that may use broadband service for its own purposes and that does not resell such service to other entities or incorporate such service into retail Internet-access service. Internet Service Providers (ISPs) are not "end users" for this purpose. An entity is a "facilities-based" provider of broadband service connections to end user locations if any of the following conditions are met: (1) it owns the portion of the physical facility that terminates at the end user location; (2) it obtains unbundled network elements (UNEs), special access lines, or other leased facilities that terminate at the end user location and provisions/equips them as broadband; or (3) it provisions/equips a broadband wireless channel to the end user location over licensed or unlicensed spectrum. For this purpose, "broadband service" is "available" at a location if broadband speeds greater than 200 Kbps (in at least one direction) and the ability to provision new requests for broadband services within 10 days of a request.For more information visit the CPUC's California Broadband Availability and Feedback website:http://www.broadbandmap.ca.gov/SCAG staff processed CPUC's layer to illustrate areas with speeds that are considered served according to FCC standards as of 2023. The Federal Communications Commission (FCC) broadband capability requires consumers to have access to actual download speeds of at least 25 Mbps and actual upload speeds of at least 3 Mbps.
Service Item Id: 61d98f089d854b0bb12a90b82bde0409
Copyright Text: California Public Utility Commission: broadbandmapping@cpuc.ca.gov