//Georgia Municipal Association
Georgia Municipal Association 2017-05-08T15:53:54-04:00

The Georgia Municipal Association (GMA)

Created in 1933, the Georgia Municipal Association is the only state organization that represents municipal governments in Georgia. Based in Atlanta, GMA is a voluntary, non-profit organization that provides legislative advocacy, educational, employee benefit and technical consulting services to its members.

GMA’s membership currently totals 512 municipal governments, accounting for more than 99% of the state’s municipal population.

Visit the Georgia Municipal Association’s website.

Interactive Mapping

The Interactive Map below displays about 200 indicators for every city in Georgia. Please note that most of the data come from the American Community Survey, which is a sample survey. This means that there is a margin of error associated with each data variable. While we didn’t publish these margins-of-error, please note that in some smaller cities, these margins-of-error can be quite large – larger than the estimate itself! Simply click on the “View Instructions” link to get a basic overview on using the map.

  • Map: To change the variable being mapped, click on the α (alpha symbol) next to the “Color Legend” and select a category from the left side of the table and a variable from the right side of the table. By hovering over the map, you can open pop-up windows with details about the variable being mapped. In the map you can use the zoom tools, select the pan tool (hand symbol) to move around, or use the square selection tool (arrow over square) to draw a box and zoom into that area.

  • Scatterplot: If there is not a scatter plot in the window, select the tools menu at the top of the window and click on scatterplot. To change the variables on the X (horizontal) and Y (vertical) axes, simply click on the axis title and select different variables for each axis. If the regression line is not showing, you can click the gear icon in the scatterplot window, select the advanced tab, and check the box to enable trendline. The regression line shows “neatness” of fit- the relationship between the two variables. Any point that is a significant distance from the line is an “outlier,” meaning that the expected relationship (the line) does not hold.
  • Data Table: At the very bottom of the map window, there is a small white box. If you click it, it will expand and reveal a data table. Click on the α (alpha symbol) next to “Advanced Table” in the upper-left corner, you can use the selector to add the data variables you want to the export. Once you are finished, you can click on the main file menu at the top and export the table as a .CSV file. The data displayed in the map is linked to both the data table and the scatterplot, meaning that if you select a feature on the map, data in the data table, or dots on the scatterplot, that same feature will be highlighted in all the windows.
  • Subsets: If you want to narrow down the number of features being mapped, you can click on “Subsets” on the main menu and click one of the existing subsets. Or, you can select your own features (from the map, table, or scatterplot), and select “Create subsets from selected records.” You’ll notice that both the legend and the scatter plot changed to reflect only the area that was selected.
  • Visit our Using Weave page for a step-by-step guide and instructional videos.

Data Dashboard

This tool allows the user a quick look at key indicators of every city in Georgia. Since much of the data is based on a sample survey (American Community Survey), some comparisons may not be valid, particularly in cities with populations smaller than 5,000.

How To Guide

Check out the presentation below to learn how to use GMA’s interactive mapping feature for every city in Georgia.