Demographic Trends & Composition Analysis

DTCA Main Page

2003 Vintage Metro Summaries

Hawaii County Demographic Trends

Metropolitan Area Demographic Trends

Register to receive a snapshot of how your metro is changing ... similar to the following profile for the San Francisco-Oakland-Fremont, CA MSA shown in the following graphic.

Use the DTCA software and database to obtain much more detail.

Access more than 800 key demographic items for each year for each county or metropolitan area.
Use the built-in map viewer to see relationships between states, counties, metros, and types of metro areas.
Select areas for analysis directly from map view using point and click.
See at-a-glance which counties make up what portion of the metro area.
Easily view how each county component is changing as well as the overall metro.
Use DTCA to save your profiles to Excel for integration with other data.
Add your own shapefiles to the map viewer so that you can see your geography with the county and metro geography.

Using Map Viewer Tools

One U.S. map project is distributed with DTCA. The project file name and location are c:\mdmsa\mdmsa1.gpr. The user never modifies the project file. It is managed in the background by the DTCA software.

When the Open button under the map window is clicked, the project file is opened. The map viewer opens to the 48-state view (zoom to full extent using tool to view Alaska and Hawaii). Four map files (shapefiles) are displayed in the map view window in a layered manner: U.S. by state, county, MSA, and MSA-MD.

In the next graphic, the ActiveLayer is set to County. Next the Identify tool (i) is selected. The hand pointer is placed over San Francisco County, CA and click left displays the county components of change profile.

A primary purpose of the maps and tools is to enable a flexible way to see what counties comprise metros and to identify a metro by visual proximity rather than name or code. Examples of selecting the MSA-MD and MSA layers as active layers, and then using the Identify tool to select and identify are demonstrated in the following graphics.

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