Daytime Population by Census Tract & Neighborhood

.. examining workers living/working in area .. population change due to commuting & employment/residence ratio .. the concept of the daytime population refers to the number of people who are present in an area during normal business hours, including workers. This is in contrast to the resident population present during the evening and nighttime hours. Information on the expansion or contraction experienced by different communities/areas between nighttime and daytime populations is important for many planning purposes, including those dealing with market size, trade/service areas, transportation, disaster, and relief operations. See related Web section with more detail.

This section reviews use of analytical tools to examine daytime population and related measures by census tract using GIS resources. These data are based on the 2013 American Community Survey 5-year estimates (ACS2013).

Topics:
• Patterns of Resident Population by Census Tract
• Patterns of Daytime Population Census Tract
• Patterns of Employment-Residence Ratio by Census Tract

Patterns of Resident Population by Census Tract
The following graphic shows patterns of the resident population by census tract for the Los Angeles area. Census tracts are statistical areas designed to average 4,000 population as reflected in this view. See population size/color intervals in inset legend. Primary roads are shown in the graphic; the pointer shows the Los Angeles-Orange County boundary. Click graphic for larger view. Expand browser window for best quality view. The larger graphic shows Los Angeles city as a cross-hatched overlay. This graphic is presented to compare/contrast patterns of the daytime population shown in the next graphic.

– View created with CV XE GIS.

See more about the Los Angeles metro and California state & regional data resources.

Patterns of Daytime Population Census Tract
The following graphic shows patterns of the daytime population by census tract for the Los Angeles area. This graphic is presented to compare/contrast patterns of the daytime population shown in the above graphic. As the employed population commutes during the data, the daytime population of census tracts change as reflected in this view. See population size/color intervals in inset legend. Primary roads are shown in the graphic; the pointer shows the Los Angeles-Orange County boundary. Click graphic for larger view. Expand browser window for best quality view. The larger graphic shows Los Angeles city as a cross-hatched overlay.

View created with CV XE GIS. Click graphic for larger view.

Patterns of Employment-Residence Ratio by Census Tract
The following graphic shows patterns of the Employment-Residence (E-R) Ratio by tract for the Los Angeles area. See E-R/color intervals in inset legend. See about the E-R ratio below. Primary roads are shown in the graphic; the pointer shows the Los Angeles-Orange County boundary. Click graphic for larger view. Expand browser window for best quality view. The larger graphic shows Los Angeles city as a cross-hatched overlay.

View created with CV XE GIS. Click graphic for larger view.

About the Employment-Residence (E-R) Ratio
The E-R ratio is a measure of the total number of workers working in the area, relative to the total number of workers living in the area. The E-R ratio is used sn indicator of the jobs-workers balance in an area. A value greater than 1.00 shows there are more workers working in the area than living there (net importers of labor). A value of less than 1.00 is shown in areas that send more workers to other areas than they receive (net exporters of labor).

See related Web section for information on daytime population terms and concepts.

Join me in a Data Analytics Lab session to discuss more details about accessing and using wide-ranging demographic-economic data and data analytics. Learn more about using these data for areas and applications of interest.

About the Author
— Warren Glimpse is former senior Census Bureau statistician responsible for innovative data access and use operations. He is also the former associate director of the U.S. Office of Federal Statistical Policy and Standards for data access and use. He has more than 20 years of experience in the private sector developing data resources and tools for integration and analysis of geographic, demographic, economic and business data. Contact Warren. Join Warren on LinkedIn.

Leave a Reply

Please log in using one of these methods to post your comment:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. Log Out /  Change )

Connecting to %s