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Mission with Identity Inc. - MD PDF Print E-mail

Volunteering with a non profit organization in Montgomery County, MD

By: Rob George; a GISCorps volunteer from Pennsylvania -- he started working with Identity Inc. in early 2011. 

GISCorps assisted a US based nonprofit organization, Identity Inc., with analyzing and mapping a variety of demographic and financial data of both upper and lower income school communities in Montgomery County, Maryland. The project was designed to address the issue of social justice within Montgomery County.  There is a significant gap between upper and lower income classes in the county and most middle/upper income families strive to live in the community with the best possible schools. The Montgomery County district is divided into high school “clusters” which contain middle and elementary schools in a hierarchical spatial structure. The allocation of resources in such a system may not equitably distribute resources within the entire district.

Median Household Income

Montgomery County is very diverse in many ways, ranging from urban to rural areas, and its demographics reflect this diversity.  Only 4.3% of the county is under the national poverty line, compared to 14.3% for the United States.  The Gini coefficient statistic is a standard measure of income inequality and ranges from 0 for absolute equality to 100 where one household has all the income. Using household income from the Census Bureau’s 2007-2009 American Community Survey, we find that the coefficient for Montgomery County is 66.1 and is much higher than the national coefficient of 45.4.  Thus there is a high degree of household income inequality in the county.

53% of all county income is earned by the top quarter, the bottom quarter earn only 6%

This project demonstrates how Montgomery County can identify and mitigate social injustices occurring within their boundaries. The four components to the project are: 1) identify community-level economic elements affecting lower income families, 2) design an analytical framework to understand community and income-based economic conditions, 3) apply the framework to analyze conditions in Montgomery County, and 4) recommend policies and actions for mitigating adverse effects.

As a first step, it was important to understand what data were available, which, as experienced GIS professionals know, can be the most time-consuming project task. Finding consistent data that identify community-level economic elements affecting lower income families is a cumbersome task.  The Montgomery County School Board provided the shape files of their school catchment zones as well as school locations.  The Nielsen Company provided demographics at a block group level (gratis) so the data could be aggregated to the high school clusters (see map).  County level budget data and locations were provided by county agencies and aggregated to the same level.  Other data were reviewed and are either in the process of being incorporated or have been ruled out due to the inability to measure across school zones.

The next step was to design an analytical framework to understand community and income-based economic conditions. The analysis was performed at the high school cluster level.  Elementary and middle school zones are too small to accurately aggregate the data.  The definition of lower income was adjusted for Montgomery County due to the cost of living and its proximity to a major metropolitan area like Washington, D.C.  The break for lower income families was set at a much higher level than would be the case for most communities.

Montgomery County Public Schools (MCPS) labeled elementary schools with large populations of students w/“unique needs” and poor performance (economic & educational challenges) as “Red Zone” beginning in 1999 and those without as "Green Zone".

Demographic and socioeconomic data were summarized by the three zones.

The high school clusters are not completely aligned with the block groups, so proportional aggregation was used to produce estimates. Therefore, the demographics were not as flexible in providing the breaks desired (e.g., how many owned households with children and had an income under $50,000 within each SCC).

Budget data was the next part of the framework to be added.  Gathering this data and attempting to find the actual locations where funds are expended is extremely challenging.

Blue dots graduated by budget value












Once the points were created, the individual items were parsed into either county-wide, cross district, or individual districts, depending upon the benefit level to the county or specific area.

The CIP earmarks show a bias towards GZ SSARs.

A strategy to improve equitable distribution of the district’s resources was also developed and includes suggesting implementation of the following:

1) Common budgeting framework with more equitable resource allocation through community and income-based HHs focused budgeting
2) Land Use Planning sensitive to the geographic basis of household socio-economic class 3) Tax incentives for Red Zone investment and development

Also suggested is development of Matrix Management or Horizontal Linkages to allow comprehensive and more equitable planning and resource decisions.


The final task in the project was to present the data to the county. A slide show was produced to help explain the issue and present the data and findings.  The objectives is to begin gaining support from other organizations within the county and then make a presentation as a group directly to the county concerning possible solutions in more equitably allocating school district resources in the county.