Michigan School Districts (2001)[1] Headcount Enrollment[2] Economically Disadvantaged[3] Special Education[4] Limited English Proficient[5] Enrollment as % of School-aged Children[6] Lone-Parent Households wi/ Children[7] Adults with at least a Bachelor's Degree[8] Median Household Income[9]
Detroit 149,348 62.90% 13.60% 5.00% 77.30% 26.50% 13.20% $33,704
Ann Arbor 16,589 18.50% 11.20% 5.10% 84.00% 7.90% 62.30% $50,175

All information from:
The number of individual students enrolled in the school system. Headcount Enrollment includes special education and alternative education students, but excludes pre-kindergarten and adult education students.
The percentage of students who receive free or reduced-price lunch under the National School Lunch Program as a result of low family income.
The number of actual individuals enrolled in special education programs. May include student also counted as K-12 education students.

The proportion of students who speak a language other than English and are limited in their ability to use English. These students may be immigrants or children born in the United States. They typically receive bilingual education or English-as-a-second-language (ESL) instructional services. In Michigan, enrollment data for limited English proficient (LEP) students is available only for those districts that operate a federal or state bilingual education program. Moreover, the number of LEP students represents both bilingual and LEP, as Michigan data does not distinguish between the two classifications for reporting purposes.
The district's headcount enrollment divided by the estimated number of school-aged children residing within the district's boundaries. This ratio is a proxy for percentage of students who attend the public school system as opposed to private, parochial, home, or other school alternatives.

The proportion of households occupied by a single adult and one or more children. A house, an apartment or other group of rooms, or a single room, is regarded as a housing unit when it is occupied or intended for occupancy as separate living quarters.
The percentage of adults residing within the school district with at least a bachelor's degree.

The point in a distribution of household incomes at which half of the incomes are below that amount, and half are above it, or the average of the two middle incomes if there is no one middle income. Household income encompasses all persons 15 years or older in the household, regardless if the individuals are related to one another. Income includes wages and salaries, self-employment, interest, rentals and dividends, social security, public assistance, retirement, and disability. Since many households consist of only one person, average household income is usually less than average family income.